Real Time Clock IC Clocks

BQ32000 Serial RTC with Battery Backup and Trickle Charge -- BQ32000D
from Texas Instruments

Serial RTC with Battery Backup and Trickle Charge 8-SOIC -40 to 85 [See More]

  • Device Type: Real Time Clock
  • Operating Temperature: -40 to 85
  • Package Type: SOIC
  • Features / Standards: RoHS
Battery-Backed I2C Real-Time Clock/Calendar with Pre-Programmed EUI-48™ MAC ID -- MCP79401
from Microchip Technology, Inc.

The MCP79401 general purpose I2CTM Compatible real-time clock/calendar (RTCC) is highly integrated with memory and advanced features normally found in higher priced devices. These features include a battery switchover circuit for backup power, a timestamp to log power failures and digital trimming... [See More]

  • Device Type: Real Time Clock; Clock Generator
Clock/Timing - Real Time Clocks -- 114-RA-4565SAB3PURESNTR-ND [RA-4565SA B3 PURE SN from Epson Electronics America, Inc.]
from Digi-Key Electronics

IC RTC CLK/CALENDAR SER 14-SOP [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.6 to 5.5
  • Package Type: Surface Mount; SOIC; 14-SOIC (0.197", 5.00mm Width)
  • Operating Temperature: -40 to 125
BQ32002 Real-Time Clock (RTC) -- BQ32002D
from Texas Instruments

Real-Time Clock (RTC) 8-SOIC -40 to 85 [See More]

  • Device Type: Real Time Clock
  • Operating Temperature: -40 to 85
  • Package Type: SOIC
  • Features / Standards: RoHS
Battery-Backed I2C Real-Time Clock/Calendar with Pre-Programmed EUI-48™ MAC ID -- MCP79411
from Microchip Technology, Inc.

The MCP79411 general purpose I2C ™Compatible real-time clock/calendar (RTCC) is highly integrated with nonvolatile memory and advanced features normally found in higher priced devices. These features include a battery switchover circuit for backup power, a timestamp to log power failures and... [See More]

  • Device Type: Real Time Clock; Clock Generator
Clock/Timing - Real Time Clocks -- 114-RA8804CEXB3TR-ND [RA8804CE XB3 from Epson Electronics America, Inc.]
from Digi-Key Electronics

IC RTC CLK/CALENDAR I2C SMD [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.6 to 5.5
  • Package Type: Surface Mount; 10-SMD, No Lead
  • Operating Temperature: -40 to 105
BQ3285 RTC IC with 114x8 NVSRAM -- BQ3285P-SB2
from Texas Instruments

RTC IC with 114x8 NVSRAM 24-PDIP 0 to 70 [See More]

  • Device Type: Real Time Clock
  • Operating Temperature: 0.0 to 70
  • Package Type: PDIP,SOIC
  • Features / Standards: RoHS
Battery-Backed I2C Real-Time Clock/Calendar with Pre-Programmed EUI-64™ MAC ID -- MCP79402
from Microchip Technology, Inc.

The MCP79402 general purpose I2CTM Compatible real-time clock/calendar (RTCC) is highly integrated with memory and advanced features normally found in higher priced devices. These features include a battery switchover circuit for backup power, a timestamp to log power failures and digital trimming... [See More]

  • Device Type: Real Time Clock; Clock Generator
Clock/Timing - Real Time Clocks -- 1253-1029-1-ND
from Digi-Key Electronics

IC RTC CLK/CALENDAR I2C SMD [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.3 to 5.5
  • Package Type: Surface Mount; 8-SMD
  • Operating Temperature: -40 to 85
BQ3285E RTC IC with 242x8 NVSRAM Alarm Wake-up -- BQ3285EP
from Texas Instruments

RTC IC with 242x8 NVSRAM Alarm Wake-up 24-PDIP 0 to 70 [See More]

  • Device Type: Real Time Clock
  • Operating Temperature: 0.0 to 70
  • Package Type: PDIP,SOIC,SSOP
  • Features / Standards: RoHS
Battery-Backed I2C Real-Time Clock/Calendar with Pre-Programmed EUI-64™ MAC ID -- MCP79412
from Microchip Technology, Inc.

The MCP79412 general purpose I2C ™Compatible real-time clock/calendar (RTCC) is highly integrated with nonvolatile memory and advanced features normally found in higher priced devices. These features include a battery switchover circuit for backup power, a timestamp to log power failures and... [See More]

  • Device Type: Real Time Clock; Clock Generator
Clock/Timing - Real Time Clocks -- 1337AGCSRGI-ND [1337AGCSRGI from Renesas Electronics Corporation]
from Digi-Key Electronics

IC RTC CLK/CALENDAR I2C 16-SOIC [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.8 to 5.5
  • Package Type: Surface Mount; SOIC; 16-SOIC (0.295", 7.50mm Width)
  • Operating Temperature: -40 to 85
BQ4845 RTC IC W NVSRAM Control, Watchdog Timer, uP Reset, Interrupts and Battery Low Warning -- BQ4845P-A4
from Texas Instruments

RTC IC W NVSRAM Control, Watchdog Timer, uP Reset, Interrupts and Battery Low Warning 28-PDIP 0 to 70 [See More]

  • Device Type: Real Time Clock
  • Operating Temperature: -40 to 85
  • Package Type: PDIP,SOIC
  • Features / Standards: RoHS
Battery-Backed I2C Real-Time Clock/Calendar with SRAM -- MCP7940N
from Microchip Technology, Inc.

The MCP7940N series of low-power Real-Time Clocks (RTC) uses digital timing compensation for an accurate clock/calendar, a programmable output control for versatility, and a power sense circuit that automatically switches to the backup supply. Using a low-cost 32.768 kHz crystal, it tracks time... [See More]

  • Device Type: Real Time Clock; Clock Generator
Clock/Timing - Real Time Clocks -- 1337AGDCGI8-ND [1337AGDCGI8 from Renesas Electronics Corporation]
from Digi-Key Electronics

IC RTC CLK/CALENDAR I2C 8-SOIC [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.8 to 5.5
  • Package Type: Surface Mount; SOIC; 8-SOIC (0.154", 3.90mm Width)
  • Operating Temperature: -40 to 85
DP8573A Real Time Clock (RTC) -- DP8573AV
from Texas Instruments

Real Time Clock (RTC) 28-PLCC -40 to 85 [See More]

  • Device Type: Real Time Clock
  • Operating Temperature: -40 to 85
  • Package Type: PLCC
Battery-Backed I2C Real-Time Clock/Calendar with SRAM and EEPROM -- MCP79410
from Microchip Technology, Inc.

The MCP79410 general purpose I2C ™Compatible real-time clock/calendar (RTCC) is highly integrated with nonvolatile memory and advanced features normally found in higher priced devices. These features include a battery switchover circuit for backup power, a timestamp to log power failures and... [See More]

  • Device Type: Real Time Clock; Clock Generator
Clock/Timing - Real Time Clocks -- 1337AGDVGI8-ND [1337AGDVGI8 from Renesas Electronics Corporation]
from Digi-Key Electronics

IC RTC CLK/CALENDAR I2C 8-TSSOP [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.8 to 5.5
  • Package Type: Surface Mount; TSSOP; 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
  • Operating Temperature: -40 to 85
Battery-Backed SPI Real-Time Clock/Calendar -- MCP79510
from Microchip Technology, Inc.

The MCP79510 SPI RTCC is highly integrated with memory and advanced features normally found in higher priced devices. By starting with a basic real-time clock, digital trimming was added for higher accuracy, a battery switchover for backup power, a timestamp to log power failures and three types of... [See More]

  • Device Type: Real Time Clock
Clock/Timing - Real Time Clocks -- 1337GNLGI-ND [1337GNLGI from Renesas Electronics Corporation]
from Digi-Key Electronics

IC RTC CLK/CAL I2C 16-VFQFPN [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.8 to 5.5
  • Package Type: Surface Mount; 16-VFQFN Exposed Pad
  • Operating Temperature: -40 to 85
Battery-Backed SPI Real-Time Clock/Calendar -- MCP79520
from Microchip Technology, Inc.

The MCP79520 SPI RTCC is highly integrated with memory and advanced features normally found in higher priced devices. By starting with a basic real-time clock, digital trimming was added for higher accuracy, a battery switchover for backup power, a timestamp to log power failures and three types of... [See More]

  • Device Type: Real Time Clock; Clock Generator
Clock/Timing - Real Time Clocks -- 1338C-18SRI-ND [1338C-18SRI from Renesas Electronics Corporation]
from Digi-Key Electronics

IC RTC CLK/CALENDAR I2C 16-SOIC [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 3.3 to 5.5
  • Package Type: Surface Mount; SOIC; 16-SOIC (0.295", 7.50mm Width)
  • Operating Temperature: -40 to 85
Battery-Backed SPI Real-Time Clock/Calendar with Pre-Programmed EUI-48™ MAC ID -- MCP79511
from Microchip Technology, Inc.

The MCP79511 SPI RTCC is highly integrated with memory and advanced features normally found in higher priced devices. By starting with a basic real-time clock, digital trimming was added for higher accuracy, a battery switchover for backup power, a timestamp to log power failures and three types of... [See More]

  • Device Type: Real Time Clock; Clock Generator
Clock/Timing - Real Time Clocks -- 1662-1600-1-ND
from Digi-Key Electronics

IC RTC CLK/CALENDAR I2C SNT-8A [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.3 to 5.5
  • Package Type: Surface Mount; 8-SMD, Flat Lead
  • Operating Temperature: -40 to 85
Battery-Backed SPI Real-Time Clock/Calendar with Pre-Programmed EUI-48™ MAC ID -- MCP79521
from Microchip Technology, Inc.

The MCP79521 SPI RTCC is highly integrated with memory and advanced features normally found in higher priced devices. By starting with a basic real-time clock, digital trimming was added for higher accuracy, a battery switchover for backup power, a timestamp to log power failures and three types of... [See More]

  • Device Type: Real Time Clock; Clock Generator
Clock/Timing - Real Time Clocks -- 1662-3197-1-ND
from Digi-Key Electronics

IC RTC CLK/CALENDAR I2C 8TSSOP [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.3 to 5.5
  • Package Type: Surface Mount; TSSOP; 8-TSSOP (0.173", 4.40mm Width)
  • Operating Temperature: -40 to 85
Battery-Backed SPI Real-Time Clock/Calendar with Pre-Programmed EUI-64™ MAC ID -- MCP79512
from Microchip Technology, Inc.

The MCP79512 SPI RTCC is highly integrated with memory and advanced features normally found in higher priced devices. By starting with a basic real-time clock, digital trimming was added for higher accuracy, a battery switchover for backup power, a timestamp to log power failures and three types of... [See More]

  • Device Type: Real Time Clock; Clock Generator
Clock/Timing - Real Time Clocks -- 175-DS1672S-33+T&RCT-ND [DS1672S-33+T&R from Maxim Integrated]
from Digi-Key Electronics

IC RTC BINARY CNT I2C 8-SOIC [See More]

  • Device Type: Binary Counter; Real Time Clock
  • Supply Voltage: 2.97 to 3.63
  • Package Type: Surface Mount; SOIC; 8-SOIC (0.154", 3.90mm Width)
  • Operating Temperature: -40 to 85
Battery-Backed SPI Real-Time Clock/Calendar with Pre-Programmed EUI-64™ MAC ID -- MCP79522
from Microchip Technology, Inc.

The MCP79522 SPI RTCC is highly integrated with memory and advanced features normally found in higher priced devices. By starting with a basic real-time clock, digital trimming was added for higher accuracy, a battery switchover for backup power, a timestamp to log power failures and three types of... [See More]

  • Device Type: Real Time Clock; Clock Generator
Clock/Timing - Real Time Clocks -- 175-MAX31341CETB+-ND [MAX31341CETB+ from Maxim Integrated]
from Digi-Key Electronics

RTC WITH POWER MANAGEMENT [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.6 to 3.6
  • Package Type: Surface Mount; 10-WFDFN Exposed Pad
  • Operating Temperature: -40 to 85
Enhanced Feature Battery-Backed SPI Real-Time Clock/Calendar -- MCP795W10
from Microchip Technology, Inc.

The MCP795W10 SPI RTCC is highly integrated with memory and advanced features normally found in higher priced devices. By starting with a basic real-time clock, digital trimming was added for higher accuracy, a battery switchover for backup power, a timestamp to log power failures and three types of... [See More]

  • Device Type: Real Time Clock
Clock/Timing - Real Time Clocks -- 2129-R2043T-E2-FCT-ND [R2043T-E2-F from RICOH Electronics, Inc.]
from Digi-Key Electronics

SERIAL INTERFACE REALTIME CLOCK [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.7 to 5.5
  • Package Type: Surface Mount; 10-VFSOP, 10-MSOP (0.110", 2.80mm Width)
  • Operating Temperature: -40 to 85
Enhanced Feature Battery-Backed SPI Real-Time Clock/Calendar -- MCP795W11
from Microchip Technology, Inc.

The MCP795W11 SPI RTCC is highly integrated with memory and advanced features normally found in higher priced devices. By starting with a basic real-time clock, digital trimming was added for higher accuracy, a battery switchover for backup power, a timestamp to log power failures and three types of... [See More]

  • Device Type: Real Time Clock
Clock/Timing - Real Time Clocks -- 2129-R2051S01-E2-FCT-ND [R2051S01-E2-F from RICOH Electronics, Inc.]
from Digi-Key Electronics

I2C-BUS REAL-TIME CLOCK MODULE [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 2.34 to 5.5
  • Package Type: Surface Mount; 16-LSSOP (0.173", 4.40mm Width)
  • Operating Temperature: -40 to 85
Enhanced Feature Battery-Backed SPI Real-Time Clock/Calendar -- MCP795W12
from Microchip Technology, Inc.

The MCP795W12 SPI RTCC is highly integrated with memory and advanced features normally found in higher priced devices. By starting with a basic real-time clock, digital trimming was added for higher accuracy, a battery switchover for backup power, a timestamp to log power failures and three types of... [See More]

  • Device Type: Real Time Clock
Clock/Timing - Real Time Clocks -- 2129-R2223L-E2CT-ND [R2223L-E2 from RICOH Electronics, Inc.]
from Digi-Key Electronics

SERIAL INTERFACE REAL TIME CLOCK [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.5 to 5.5
  • Package Type: Surface Mount; 12-XFQFN Exposed Pad
  • Operating Temperature: -40 to 85
Enhanced Feature Battery-Backed SPI Real-Time Clock/Calendar -- MCP795W20
from Microchip Technology, Inc.

The MCP795W20 SPI RTCC is highly integrated with memory and advanced features normally found in higher priced devices. By starting with a basic real-time clock, digital trimming was added for higher accuracy, a battery switchover for backup power, a timestamp to log power failures and three types of... [See More]

  • Device Type: Real Time Clock
Clock/Timing - Real Time Clocks -- 2129-RS5C348A-E2-FCT-ND [RS5C348A-E2-F from RICOH Electronics, Inc.]
from Digi-Key Electronics

IC REAL TIME CLOCK 4 WIRE SERIAL [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 2 to 5.5
  • Package Type: Surface Mount; 10-LFSOP (0.173", 4.40mm Width)
  • Operating Temperature: -40 to 85
Enhanced Feature Battery-Backed SPI Real-Time Clock/Calendar -- MCP795W21
from Microchip Technology, Inc.

The MCP795W21 SPI RTCC is highly integrated with memory and advanced features normally found in higher priced devices. By starting with a basic real-time clock, digital trimming was added for higher accuracy, a battery switchover for backup power, a timestamp to log power failures and three types of... [See More]

  • Device Type: Real Time Clock
Clock/Timing - Real Time Clocks -- 2129-RS5C372A-E2-FCT-ND [RS5C372A-E2-F from RICOH Electronics, Inc.]
from Digi-Key Electronics

IC REAL TIME CLOCK 2 WIRE [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.7 to 6
  • Package Type: Surface Mount; 8-LSSOP (0.173", 4.40mm Width)
  • Operating Temperature: -40 to 85
Enhanced Feature Battery-Backed SPI Real-Time Clock/Calendar -- MCP795W22
from Microchip Technology, Inc.

The MCP795W22 SPI RTCC is highly integrated with memory and advanced features normally found in higher priced devices. By starting with a basic real-time clock, digital trimming was added for higher accuracy, a battery switchover for backup power, a timestamp to log power failures and three types of... [See More]

  • Device Type: Real Time Clock
Clock/Timing - Real Time Clocks -- 2129-RV5C348A-E2-FCT-ND [RV5C348A-E2-F from RICOH Electronics, Inc.]
from Digi-Key Electronics

IC REAL TIME CLOCK 4 WIRE SERIAL [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 2 to 5.5
  • Package Type: Surface Mount; 10-LFSOP, 10-MSOP (0.110", 2.80mm Width)
  • Operating Temperature: -40 to 85
I2C Real-Time Clock/Calendar with SRAM -- MCP7940M
from Microchip Technology, Inc.

The MCP7940M I2CTM compatible real-time clock/calendar (RTCC) includes SRAM and a digital trimming circuit for accuracy which is normally found in higher priced devices. Using a low-cost 32,768 kHz crystal or other clock source, time is tracked in either a 12-hour or 24-hour format with an AM/PM... [See More]

  • Device Type: Real Time Clock; Clock Generator
Clock/Timing - Real Time Clocks -- 2195-RV-1805-C3-32.768KHZ-2PPM-TA-QATR-ND [RV-1805-C3-32.768KHZ-2PPM-TA-QA from Micro Crystal AG]
from Digi-Key Electronics

IC RTC CLK/CALENDAR I2C 10-SON [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.5 to 3.6
  • Package Type: Surface Mount; 10-VCDFN
  • Operating Temperature: -40 to 85
Clock/Timing - Real Time Clocks -- 2195-RV-2123-C2-32.768KHZ-10PPM-TA-QCTR-ND [RV-2123-C2-32.768KHZ-10PPM-TA-QC from Micro Crystal AG]
from Digi-Key Electronics

IC RTC CLK/CALENDAR SPI 10-SON [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.1 to 5.5
  • Package Type: Surface Mount; 10-TCDFN Exposed Pad
  • Operating Temperature: -40 to 85
Clock/Timing - Real Time Clocks -- 2195-RV-3028-C732.768KHZ1PPM-TA-QACT-ND [RV-3028-C7 32.768KHZ 1PPM-TA-QA from Micro Crystal AG]
from Digi-Key Electronics

IC RTC CLK/CALENDAR I2C 8-SMT [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.1 to 5.5
  • Package Type: Surface Mount; 8-WCDFN
  • Operating Temperature: -40 to 85
Clock/Timing - Real Time Clocks -- 2195-RV-3029-C2-32.768KHZ-OPTION-A-TA-QCTR-ND [RV-3029-C2-32.768KHZ-OPTION-A-TA-QC from Micro Crystal AG]
from Digi-Key Electronics

IC RTC CLK/CALENDAR I2C 12-SON [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.3 to 5.5
  • Package Type: Surface Mount; 10-TCDFN Exposed Pad
  • Operating Temperature: -40 to 85
Clock/Timing - Real Time Clocks -- 2195-RV-3029-C3-32.768KHZ-OPTION-A-TA-QCTR-ND [RV-3029-C3-32.768KHZ-OPTION-A-TA-QC from Micro Crystal AG]
from Digi-Key Electronics

IC RTC CLK/CALENDAR I2C 12-SON [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.3 to 5.5
  • Package Type: Surface Mount; 10-VCDFN
  • Operating Temperature: -40 to 85
Clock/Timing - Real Time Clocks -- 2195-RV-3049-C2-32.768KHZ-OPTION-A-TA-QCTR-ND [RV-3049-C2-32.768KHZ-OPTION-A-TA-QC from Micro Crystal AG]
from Digi-Key Electronics

IC RTC CLK/CALENDAR SPI 10-SON [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.3 to 5.5
  • Package Type: Surface Mount; 10-TCDFN Exposed Pad
  • Operating Temperature: -40 to 85
Clock/Timing - Real Time Clocks -- 2195-RV-3049-C3-32.768KHZ-OPTION-A-TA-QCTR-ND [RV-3049-C3-32.768KHZ-OPTION-A-TA-QC from Micro Crystal AG]
from Digi-Key Electronics

IC RTC CLK/CALENDAR SPI 10-SON [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.3 to 5.5
  • Package Type: Surface Mount; 10-VCDFN
  • Operating Temperature: -40 to 85
2 Output PCI-Express GEN1 Clock Source -- 557G-03LF
from Integrated Device Technology

The 557-03 is a spread spectrum clock generator that supports PCI -Express Gen 1 and Ethernet requirements. The device is used for PC or embedded systems to substantially reduce electromagnetic interference ( EMI ). The device provides two differential ( HCSL ) spread spectrum outputs. The spread... [See More]

  • Device Type: Real Time Clock
  • Package Type: Surface Mount; TSSOP; TSSOP
  • Bus Interface: HCSL
  • Supply Voltage: 3.3
Real Time Clock Parallel 8KByte 28-Pin SO -- M48T58Y-70MH1E [M48T58Y-70MH1E from STMicroelectronics, Inc.]
from Karl Kruse GmbH & Co. KG

Karl Kruse  is a worldwide leading franchised distributor (ISO: 9001-2008 certified). A service provider specializing in the supply and material management of electronic components, since 1951. We are an innovative company who is dedicated to collaborating with customers and partners to develop... [See More]

  • Device Type: Real Time Clock
CMOS Serial Real-Time Clock With RAM and Power Sense/Control -- CDP68HC68T1EZ
from Renesas Electronics Corporation

The CDP68HC68T1 Real-Time Clock provides a time/calendar function, a 32 byte static RAM, and a 3 wire Serial Peripheral Interface (SPI Bus). The primary function of the clock is to divide down a frequency input that can be supplied by the on-board oscillator in conjunction with an external crystal... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 3 to 6
  • Package Type: PDIP; SOIC
  • Features / Standards: Programmable
ITU-T G.8262 Synchronous Ethernet Jitter-Attenuating Clock Multiplier -- Si5328B-C-GM
from Silicon Labs

Description: The Si5328 is a jitter-attenuating precision clock multiplier for Synchronous Ethernet applications requiring sub 1 ps jitter performance and ultra-low loop bandwidth. When combined with a low-wander, lowjitter reference oscillator, the Si5328 meets all of the wander, MTIE, TDEV, and... [See More]

  • Device Type: Real Time Clock
  • Package Type: QFN
  • Bus Interface: CMOS; LVPECL; I2C; LVDS; SPI; CML, LVCMOS
  • Supply Voltage: 3.3
AB-557 -- AB-557-03-HCC-F-L-C-T
from Abracon, LLC

RoHS/RoHS II Compliant. Series: AB-557. Operating Temperature: -40 °C ~ 85 °C. Main Purpose: PCI Express (PCIe), Clock Generator. Output: HCSL, LVCMOS. Number of Circuits: 1. Ratio - Input:Output: 0:02. Differential - Input:Output: No/Yes. Frequency Maximum: 460 MHz. Voltage - Supply:... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 2.25 to 3.6
  • Package Type: QFN; 14-VFQFN Exposed Pad
  • Frequency: 460
I2C BUS Serial Interface RTC with High-precision Oscillation Adjustment -- BU9873F
from ROHM Semiconductor USA, LLC

The BU9873 is a CMOS real-time clock, which has a built-in interrupt generation function. This product is connected to the CPU via I ²C interface, and configured to perform serial transmission of time and calendar data to the CPU. A high-precision oscillation adjustment circuit is also... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.8 to 5.5
  • Package Type: SOP
  • Operating Temperature: -40 to 85
Real Time Clock Backup Batteries -- EnerChip RTC CBC34123-M5C with SPI bus
from Cymbet Corporation

The EnerChip RTC CBC34123-M5C combines a Real-Time Clock (RTC) and calendar optimized for low power applications with an integrated rechargeable solid state backup battery and all power management functions. The EnerChip RTC ensures a seamless transition from main power to backup power in the event... [See More]

  • Device Type: Real Time Clock
  • Package Type: Surface Mount
  • Bus Interface: SPI
  • Supply Voltage: 2.5 to 6
±5ppm, I 2C Real-Time Clock -- DS3231M
from Maxim Integrated

The DS3231M is a low-cost, extremely accurate, I2C real-time clock (RTC). The device incorporates a battery input and maintains accurate timekeeping when main power to the device is interrupted. The integration of the microelectromechanical systems (MEMS) resonator enhances the long-term accuracy of... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 2.3 to 5.5
  • Package Type: Surface Mount; SOIC; SOIC(N), SOIC(W)
  • Operating Temperature: -45 to 85
Real Time Clock
from TT Semiconductor, Inc.

Provides Year, Month, Day, Weekday, Hours, Minutes and Seconds based on a 32.768 KHz Quartz Crystal. 1.8v to 5.5v Operation. Low Backup Current; Typical .65 µA. I ²C Bus Interface. Alarm and Timer Functions. 200 °C Operation. Ceramic SOIC Package. Production 3Q 2014 [See More]

  • Device Type: Real Time Clock
  • Package Type: SOIC
  • Bus Interface: I2C
  • Supply Voltage: 1.8 to 5.5
32.768KHz Clock Oscillator -- MK3200SILF
from Integrated Device Technology

The MK3200 is IDT ’s lowest cost, low power clock oscillator that generates a low power 32.768 kHz output from an inexpensive 32.768 kHz crystal. This part includes a power down pin and allows you to tri state the output clock for in-circuit testing. IDT manufactures the largest variety of... [See More]

  • Device Type: Real Time Clock
  • Package Type: Surface Mount; SOIC; SOIC
  • Bus Interface: LVCMOS
  • Supply Voltage: 2.5 to 5
CMOS Serial Real-Time Clock With RAM and Power Sense/Control -- CDP68HC68T1M2Z
from Renesas Electronics Corporation

The CDP68HC68T1 Real-Time Clock provides a time/calendar function, a 32 byte static RAM, and a 3 wire Serial Peripheral Interface (SPI Bus). The primary function of the clock is to divide down a frequency input that can be supplied by the on-board oscillator in conjunction with an external crystal... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 3 to 6
  • Package Type: PDIP; SOIC
  • Features / Standards: Programmable
AB-RTCMK Clock/Calendar -- AB-RTCMC-32.768KHZ-AIGZ-S7-T
from Abracon, LLC

RoHS/RoHS II Compliant. Series: AB-RTCMK. Type: Clock/Calendar. Operating Temperature: -40 °C ~ 85 °C. Features: Alarm, Leap Year, Watchdog Timer. Time Format: HH:MM:SS:hh (24 hr). Date Format: YY-MM-DD-dd. Interface: I ²C, 2-Wire Serial. Voltage - Supply: 1V ~ 4.4V. Current -... [See More]

  • Device Type: Real Time Clock
  • Package Type: 8-WCDFN
  • Bus Interface: I2C
  • Supply Voltage: 1 to 4.4
I2C BUS Serial Interface RTC with High-precision Oscillation Adjustment -- BU9873FJ
from ROHM Semiconductor USA, LLC

The BU9873 is a CMOS real-time clock, which has a built-in interrupt generation function. This product is connected to the CPU via I ²C interface, and configured to perform serial transmission of time and calendar data to the CPU. A high-precision oscillation adjustment circuit is also... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.8 to 5.5
  • Package Type: SOP
  • Operating Temperature: -40 to 85
Real Time Clock Backup Batteries -- EnerChip RTC CBC34803 with I2C bus
from Cymbet Corporation

The EnerChip RTC CBC34803-M5C combines a Real-Time Clock (RTC) and calendar optimized for low power applications with an integrated rechargeable solid state backup battery and all power management functions. The EnerChip RTC ensures a seamless transition from main power to backup power in the event... [See More]

  • Device Type: Real Time Clock
  • Package Type: Surface Mount
  • Bus Interface: I2C
  • Supply Voltage: 2.5 to 3.6
±5ppm, I²C Real-Time Clock with SRAM -- DS3232M
from Maxim Integrated

The DS3232M is a low-cost, extremely accurate, I ²C real-time clock (RTC) with 236 bytes of battery-backed SRAM. The device incorporates a battery input and maintains accurate timekeeping when main power to the device is interrupted. The integration of the microelectromechanical systems (MEMS)... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 2.3 to 4.5
  • Package Type: Surface Mount; SOIC
  • Operating Temperature: -40 to 85
CK-MNG Synthesizer for Peripherals -- 9FGP202AKLF
from Integrated Device Technology

The 9FGP202 is a peripheral clock for Intel Server. It is driven with a 25MHz crystal and generates CPU outputs up to 400MHz. An SMBus interface allows full control of the device. [See More]

  • Device Type: Real Time Clock
  • Package Type: Surface Mount; VFQFPN
  • Bus Interface: HCSL,LVTTL
  • Supply Voltage: 3.3
CMOS Serial Real-Time Clock With RAM and Power Sense/Control -- CDP68HC68T1MZ
from Renesas Electronics Corporation

The CDP68HC68T1 Real-Time Clock provides a time/calendar function, a 32 byte static RAM, and a 3 wire Serial Peripheral Interface (SPI Bus). The primary function of the clock is to divide down a frequency input that can be supplied by the on-board oscillator in conjunction with an external crystal... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 3 to 6
  • Package Type: PDIP; SOIC
  • Features / Standards: Programmable
I2C BUS Serial Interface RTC with High-precision Oscillation Adjustment -- BU9873FVM
from ROHM Semiconductor USA, LLC

The BU9873 is a CMOS real-time clock, which has a built-in interrupt generation function. This product is connected to the CPU via I ²C interface, and configured to perform serial transmission of time and calendar data to the CPU. A high-precision oscillation adjustment circuit is also... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.8 to 5.5
  • Package Type: MSOP8
  • Operating Temperature: -40 to 85
1-Wire Time Chip With Interrupt -- DS2417
from Maxim Integrated

The DS2417 1-Wire Time Chip with Interrupt offers a simple solution for storing and retrieving vital time information with minimal hardware. The DS2417 contains a unique lasered ROM and a real-time clock/calendar implemented as a binary counter. Only one pin is required for communication with the... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 3 to 5
  • Package Type: Surface Mount; FCHIP, TSOC
  • Operating Temperature: -40 to 85
CK-MNG+ Peripheral Synthesizer for Intel Servers -- 9FGP204BKLF
from Integrated Device Technology

The 9FGP204 is a peripheral clock for Intel Servers. It is driven with a 25MHz crystal. An SMBus interface allows full control of the device. [See More]

  • Device Type: Real Time Clock
  • Package Type: Surface Mount; VFQFPN
  • Bus Interface: HCSL,LVTTL
  • Supply Voltage: 3.3
Horizontal Genlock, 8FSC -- EL4585CSZ
from Renesas Electronics Corporation

The EL4585 is a PLL (Phase Lock Loop) sub-system, designed for video applications and also suitable for general purpose use up to 36MHz. In video applications, this device generates a TTL/CMOS-compatible pixel clock (CLK OUT) which is a multiple of the TV horizontal scan rate and phase locked to... [See More]

  • Device Type: Real Time Clock
  • Package Type: SOIC
I2C BUS Serial Interface RTC with High-precision Oscillation Adjustment -- BU9873FVT
from ROHM Semiconductor USA, LLC

The BU9873 is a CMOS real-time clock, which has a built-in interrupt generation function. This product is connected to the CPU via I ²C interface, and configured to perform serial transmission of time and calendar data to the CPU. A high-precision oscillation adjustment circuit is also... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.8 to 5.5
  • Package Type: TSSOP-B8
  • Operating Temperature: -40 to 85
1024K NV SRAM with Phantom Clock -- DS1248
from Maxim Integrated

The DS1248 1024K NV SRAM with Phantom Clock is a fully static nonvolatile RAM (organized as 128K words by 8 bits) with a built-in real-time clock. The DS1248 has a self-contained lithium energy source and control circuitry, which constantly monitors VCC for an out-of-tolerance condition. When such a... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 3.3 to 5
  • Package Type: Surface Mount; DIP; EDIP, PCAP
  • Operating Temperature: -40 to 85
CK-MNG+ Peripheral Synthesizer w/Wake-On-Lan support for Intel Servers -- 9FGP205AKLF
from Integrated Device Technology

The 9FGP205 is a peripheral clock for Intel Servers, supporting Wake-On-Lan. It is driven with a 25MHz crystal. An SMBus interface allows full control of the device. [See More]

  • Device Type: Real Time Clock
  • Package Type: Surface Mount; VFQFPN
  • Bus Interface: HCSL,LVTTL
  • Supply Voltage: 3.3
I2C Real Time Clock with Battery Backup Low Power RTC with Battery ReSeal™ Function -- ISL12008IB8Z
from Renesas Electronics Corporation

The ISL12008 device is a low power real time clock/calendar that is pin compatible and functionally equivalent to the ST M41T00S and Maxim DS1340 with timing and crystal compensation. The device additionally provides power-fail indicator, software alarm and intelligent battery backup.brbr The... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 2.7 to 5.5
  • Package Type: SOIC
I2C BUS Serial Interface RTC with High-precision Oscillation Adjustment -- BU9873NUX
from ROHM Semiconductor USA, LLC

The BU9873 is a CMOS real-time clock, which has a built-in interrupt generation function. This product is connected to the CPU via I ²C interface, and configured to perform serial transmission of time and calendar data to the CPU. A high-precision oscillation adjustment circuit is also... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.8 to 5.5
  • Package Type: VSON008X2030
  • Operating Temperature: -40 to 85
1M, Nonvolatile, Y2K-Compliant Timekeeping RAM -- DS1556
from Maxim Integrated

The DS1556 is a full-function, year-2000-compliant (Y2KC), real-time clock/calendar (RTC) with an RTC alarm, watchdog timer, power-on reset, battery monitor, and 128k x 8 nonvolatile static RAM. User access to all registers within the DS1556 is accomplished with a byte-wide interface as shown in... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 3.3 to 5
  • Package Type: Surface Mount; DIP; EDIP, PCAP
  • Operating Temperature: -40 to 85
CK410B+ Derivative Synthesizer -- 932S422CGLF
from Integrated Device Technology

The IDT932S422 is a main clock synthesizer for CK410B + generation Intel server platforms. The IDT932S422 is driven with a 14.318MHz crystal. It generates 5 CPU outputs up to 400MHz and 4 PCIe Gen2 PCI -Express clocks. The 48 MHz USB clock is an exact 48.000 MHz clock. [See More]

  • Device Type: Real Time Clock
  • Package Type: Surface Mount; TSSOP; TSSOP
  • Bus Interface: HCSL,LVTTL
  • Supply Voltage: 3.3
I2C® Real Time Clock/Calendar, Low Power RTC with Battery Backed SRAM -- ISL1208IB8Z
from Renesas Electronics Corporation

The ISL1208 device is a low power real time clock with timing and crystal compensation, clock/calendar, power fail indicator, periodic or polled alarm, intelligent battery backup switching and battery-backed user SRAM.brbr The oscillator uses an external, low-cost 32.768kHz crystal. The real time... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 2.7 to 5.5
  • Package Type: SOIC; SOP; DFN
256k Nonvolatile, Y2K-Compliant Timekeeping RAM -- DS1554
from Maxim Integrated

The DS1554 is a full-function, year 2000-compliant (Y2KC), real-time clock/calendar (RTC) with an RTC alarm, watchdog timer, power-on reset, battery monitor, and 32k x 8 nonvolatile static RAM. User access to all registers within the DS1554 is accomplished with a byte-wide interface as shown in... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 3.3 to 5
  • Package Type: Surface Mount; DIP; EDIP, PCAP
  • Operating Temperature: -40 to 85
CK410B+ Synthesizer -- 932S421BGLF
from Integrated Device Technology

The IDT932S421 is a main clock synthesizer for CK410B + generation Intel server platforms. The IDT932S421 is driven with a 14.318MHz crystal. It generates 4 CPU outputs up to 400MHz and 5 PCIe Gen2 PCI -Express clocks. The 48 MHz USB clock is an exact 48.000 MHz clock. [See More]

  • Device Type: Real Time Clock
  • Package Type: Surface Mount; TSSOP; TSSOP
  • Bus Interface: HCSL,LVTTL
  • Supply Voltage: 3.3
I2C® Real Time Clock/Calendar, Low Power RTC with Battery Backed SRAM -- ISL1208IRT8Z
from Renesas Electronics Corporation

The ISL1208 device is a low power real time clock with timing and crystal compensation, clock/calendar, power fail indicator, periodic or polled alarm, intelligent battery backup switching and battery-backed user SRAM.brbr The oscillator uses an external, low-cost 32.768kHz crystal. The real time... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 2.7 to 5.5
  • Package Type: SOIC; SOP; DFN
256k NV SRAM with Phantom Clock -- DS1244
from Maxim Integrated

The DS1244 256k NV SRAM with a Phantom clock is a fully static nonvolatile RAM (NV SRAM) (organized as 32k words by 8 bits) with a built-in real-time clock. The DS1244 has a self-contained lithium energy source and control circuitry, which constantly monitors VCC for an out-of-tolerance condition. [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 3.3 to 5
  • Package Type: Surface Mount; DIP; EDIP, PCAP
  • Operating Temperature: 0.0 to 70
CK420BQ Derivative Supporting SRnS PCIe Clocking -- 932SQ426AGLF
from Integrated Device Technology

The 932SQ426 is a CK420BQ derivative supporting Separate Reference no Spread (SRnS) PCIe clocking architectures. It uses a 25MHz crystal for maximum performance and has 100MHz outputs tuned for non-spreading applications to provide the most open eye diagram on PCIe links. [See More]

  • Device Type: Real Time Clock
  • Package Type: Surface Mount; TSSOP; TSSOP
  • Bus Interface: HCSL,LVTTL
  • Supply Voltage: 3.3
I2C® Real Time Clock/Calendar, Low Power RTC with Battery Backed SRAM -- ISL1208IU8Z
from Renesas Electronics Corporation

The ISL1208 device is a low power real time clock with timing and crystal compensation, clock/calendar, power fail indicator, periodic or polled alarm, intelligent battery backup switching and battery-backed user SRAM.brbr The oscillator uses an external, low-cost 32.768kHz crystal. The real time... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 2.7 to 5.5
  • Package Type: SOIC; SOP; DFN
3V/5V Real-Time Clock -- DS1685
from Maxim Integrated

The DS1685/DS1687 are real-time clocks (RTCs) designed as successors to the industry-standard DS1285,DS1385, DS1485, and DS1585 PC RTCs. These devices provide the industry-standard DS1285 clock function with either +3.0V or +5.0V operation. The DS1685 also incorporates a number of enhanced features... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 3 to 5
  • Package Type: Surface Mount; PDIP; SOIC; TSSOP; PDIP(W), PLCC, SOIC(W), TSSOP
  • Operating Temperature: -40 to 85
CK420BQ Derivative Synthesizer -- 932SQ425AKLF
from Integrated Device Technology

The 932SQ425 is a reduced-pin-count main clock synthesizer for Intel Romley-generation server platforms. The 932SQ425 is driven with a 25 MHz crystal for maximum performance. It generates CPU outputs of 100 or 133.33 MHz. [See More]

  • Device Type: Real Time Clock
  • Package Type: Surface Mount; VFQFPN
  • Bus Interface: HCSL,LVTTL
  • Supply Voltage: 3.3
Low Cost, Low Power I2C-Bus™ Real Time Clock/Calendar Low Power and Low Cost RTC with Alarm Function -- ISL12058IRTZ
from Renesas Electronics Corporation

The ISL12058 device is a low power real time clock with clock/calendar, and alarm function.brbr The oscillator uses an external, low-cost 32.768kHz crystal. The real time clock tracks time with separate registers for hours, minutes, and seconds. The device has calendar registers for date, month,... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.4 to 3.6
  • Package Type: SOIC; SOP; DFN
3V/5V Real-Time Clocks -- DS17285
from Maxim Integrated

The DS17285, DS17485, DS17885, DS17287, DS17487, and DS17887 real-time clocks (RTCs) are designed to be successors to the industry-standard DS12885 and DS12887. The DS17285, DS17485, and DS17885 (hereafter referred to as the DS17x85) provide a real-time clock/calendar, one time-of-day alarm, three... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 3 to 5
  • Package Type: Surface Mount; PDIP; SOIC; PDIP(W), SOIC(W), TSOP
  • Operating Temperature: -40 to 85
CK420BQ Derivative Synthesizer -- 932SQ428AKLF
from Integrated Device Technology

The 932SQ428 is a main clock synthesizer for Romley-generation Intel based server platforms. The 932SQ428 is driven with a 25 MHz crystal for maximum performance. It generates CPU outputs of 100MHz. [See More]

  • Device Type: Real Time Clock
  • Package Type: Surface Mount; VFQFPN
  • Bus Interface: HCSL,LVTTL
  • Supply Voltage: 3.3
Low Power RTC with 8 Bytes of Battery Backed SRAM and Separate FOUT -- ISL1220IUZ-T
from Renesas Electronics Corporation

The ISL1220 device is a low power real time clock with timing and crystal compensation, clock/calendar, power fail indicator, periodic or polled alarm, intelligent battery backup switching, battery-backed user SRAM and separate FsubOUT/sub and span style="text-decoration: overline"IRQ/span... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 2.7 to 5.5
  • Package Type: SOP
4096K NV SRAM with Phantom Clock -- DS1251
from Maxim Integrated

The DS1251 4096K NV SRAM with Phantom Clock is a fully static nonvolatile RAM (organized as 512K words by 8 bits) with a built-in real-time clock. The DS1251Y has a self-contained lithium energy source and control circuitry which constantly monitors VCC for an out-of-tolerance condition. When such a... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 3.3 to 5
  • Package Type: Surface Mount; DIP; EDIP, PCAP
  • Operating Temperature: -40 to 85
CK420BQ Synthesizer -- 932SQ420DGLF
from Integrated Device Technology

The 932SQ420 is an Intel CK420BQ main clock synthesizer for Romley-generation and newer Intel-based server platforms. The 932SQ420 is driven with a 25 MHz crystal for maximum performance. It generates CPU outputs of 100 or 133.33 MHz. [See More]

  • Device Type: Real Time Clock
  • Package Type: Surface Mount; TSSOP; TSSOP
  • Bus Interface: HCSL,LVTTL
  • Supply Voltage: 3.3
Real Time Clock with Embedded Crystal, ±5ppm Accuracy -- ISL12020MIRZ
from Renesas Electronics Corporation

Low Power RTC with Battery Backed SRAM, Integrated ±5ppm Temperature Compensation and Auto Daylight Saving ISL12020M The ISL12020M device is a low power Real Time Clock (RTC) with an embedded temperature sensor and crystal. Device functions include oscillator compensation, clock/calendar,... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 2.7 to 5.5
  • Package Type: DFN
4Meg, Nonvolatile, Y2K-Compliant Timekeeping RAM -- DS1557
from Maxim Integrated

The DS1557 is a full-function, year-2000-compliant (Y2KC), real-time clock/calendar (RTC) with an RTC alarm, watchdog timer, power-on reset, battery monitor, and 512k x 8 nonvolatile static RAM. User access to all registers within the DS1557 is accomplished with a byte-wide interface as shown in... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 3.3 to 5
  • Package Type: Surface Mount; PCAP
  • Operating Temperature: -40 to 85
DB1200GS Frequency Gearing Clock -- 9FG1200DG-1LF
from Integrated Device Technology

9FG1200 -1 follows the Intel DB1200GS Differential Buffer Specification. This buffer provides 12 output clocks for CPU Host Bus, PCIe Gen2, or Fully Buffered DIMM applications. The outputs are configured with two groups. Both groups ( DIF 9:0) and ( DIF 11:10) can be equal to or have a gear ratio to... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 3.3
  • Package Type: Surface Mount; TSSOP; TSSOP
  • Frequency: 0.0 to 400
Real Time Clock/Calendar with I2C Bus™ and EEPROM -- ISL12026AIVZ
from Renesas Electronics Corporation

The ISL12026 and the ISL12026A devices are micro power real time clocks with timing and crystal compensation, clock/calender, power-fail indicator, two periodic or polled alarms, intelligent battery backup switching, and integrated 512x8-bit EEPROM configured in 16 Bytes per page.brbr The oscillator... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 2.7 to 5.5
  • Package Type: SOIC; TSSOP
64 x 8, Serial, I²C Real-Time Clock -- DS1307
from Maxim Integrated

The DS1307 serial real-time clock (RTC) is a low-power, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM. Address and data are transferred serially through an I ²C, bidirectional bus. The clock/calendar provides seconds, minutes, hours, day, date, month, and year... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 5
  • Package Type: Surface Mount; PDIP; SOIC; PDIP(N), SOIC(N)
  • Operating Temperature: -40 to 85
Differential-to-LVDS/0.7V Differential PCI Express Jitter Attenuator -- 8741004AGLF
from Integrated Device Technology

The 8741004 is a high performance Differential-to- LVDS /0.7V Differential Jitter Attenuator designed for use in PCI Express ® ™ systems. In some PCI Express ® systems, such as those found in desktop PCs, the PCI Express ® clocks are generated from a low bandwidth, high phase noise... [See More]

  • Device Type: Real Time Clock
  • Package Type: Surface Mount; TSSOP; TSSOP
  • Bus Interface: LVDS; HCSL,LVDS
  • Supply Voltage: 3.3
64K NV SRAM with Phantom Clock -- DS1243
from Maxim Integrated

The DS1243Y 64K NV SRAM with Phantom Clock is a fully static nonvolatile RAM (organized as 8192 words by 8 bits) with a built-in real time clock. The DS1243Y has a self-contained lithium energy source and control circuitry, which constantly monitors VCC for an out-of-tolerance condition. When such a... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 5
  • Package Type: Surface Mount; DIP
  • Operating Temperature: 0.0 to 70
Differential-to-LVDS/0.7V Differential PCI Express Jitter Attenuator -- 8741004BGILF
from Integrated Device Technology

The 8741004I is a high performance Differential-to- LVDS /0.7V Differential Jitter Attenuator designed for use in PCI Express ® ™ systems. In some PCI Express ® systems, such as those found in desktop PCs, the PCI Express ® clocks are generated from a low bandwidth, high phase... [See More]

  • Device Type: Real Time Clock
  • Package Type: Surface Mount; TSSOP; TSSOP
  • Bus Interface: LVDS; HCSL,LVDS
  • Supply Voltage: 3.3
64kB, Nonvolatile, Year-2000-Compliant Timekeeping RAM -- DS1553
from Maxim Integrated

The DS1553 is a full-function, year-2000-compliant (Y2KC) real-time clock/calendar (RTC) with an RTC alarm, watchdog timer, power-on reset, battery monitor, and "8k x 8 nonvolatile static RAM (NV SRAM). " User access to all registers within the DS1553 is accomplished with a bytewide... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 3.3 to 5
  • Package Type: Surface Mount; DIP; EDIP, PCAP
  • Operating Temperature: 0.0 to 70
Low Skew Clock Inverter and Divider -- 548G-05LF
from Integrated Device Technology

The 548-05 is a low-cost, low-jitter, high-performace clock synthesizer designed to produce x16 and x24 clocks from T1 and E1 frequencies. Using IDT ’s patented analog/digital Phase- Locked Loop ( PLL ) techniques, the device uses a crystal or clock input to synthesize popular communications... [See More]

  • Device Type: Real Time Clock
  • Package Type: Surface Mount; TSSOP; TSSOP
  • Bus Interface: LVCMOS
  • Supply Voltage: 3.3 to 5
Advanced NV SRAM Battery Cap -- DS3800
from Maxim Integrated

The DS3800 is a secondary lithium power source designed to conveniently snap-on over a 40mm Ball Grid Array (BGA) nonvolatile memory module. Its durable attachment flanges prevent misalignment and maintain mechanical and electrical connection with the module throughout shocks and stresses during and... [See More]

  • Device Type: Real Time Clock
  • Operating Temperature: 0.0 to 70
  • Package Type: Surface Mount; PCAP
Low Voltage/Low Skew,1:4 PCI/PCI-X -- 87604AGILF
from Integrated Device Technology

The 87604I is a 1:4 PCI / PCI -X Clock Generator. The 87604I has a selectable REF_IN or crystal input. The REF_IN input accepts LVCMOS or LVTTL input levels. The 87604I has a fully integrated PLL along with frequency configurable clock and feedback outputs for multiply-ing and regenerating clocks... [See More]

  • Device Type: Real Time Clock
  • Package Type: Surface Mount; TSSOP; TSSOP
  • Bus Interface: LVCMOS,LVTTL
  • Supply Voltage: 3.3
Extremely Accurate I²C RTC with Integrated Crystal and SRAM -- DS3232
from Maxim Integrated

The DS3232 is a low-cost temperature-compensated crystal oscillator (TCXO) with a very accurate, temperature-compensated, integrated real-time clock (RTC) and 236 bytes of battery-backed SRAM. Additionally, the DS3232 incorporates a battery input and maintains accurate timekeeping when main power to... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 2.3 to 5.5
  • Package Type: Surface Mount; SOIC
  • Operating Temperature: -40 to 85
Low-Power CK420BQ Derivative for PCIe Common Clock Architectures -- 932SQL450BGLF
from Integrated Device Technology

The 932SQL450 is a low power version of the CK420BQ synthesizer for Intel-based server platforms. It has 85-ohm LP - HCSL outputs allowing for direct connection to 85-ohm transmission lines. The 932SQL450 is driven with a 25MHz crystal for maximum performance. It generates CPU outputs of 100MHz. [See More]

  • Device Type: Real Time Clock
  • Package Type: Surface Mount; TSSOP; TSSOP
  • Bus Interface: LP-HCSL,LVTTL
  • Supply Voltage: 3.3
Extremely Accurate I²C-Integrated RTC/TCXO/Crystal -- DS3231
from Maxim Integrated

The DS3231 is a low-cost, extremely accurate I ²C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device incorporates a battery input, and maintains accurate timekeeping when main power to the device is interrupted. The integration of... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 2.3 to 5.5
  • Package Type: Surface Mount; SOIC
  • Operating Temperature: -40 to 85
Low-Power CK420BQ Derivative for PCIe Separate Clock Architectures -- 932SQL456AGILF
from Integrated Device Technology

The 932SQL456 is a low power version of the CK420BQ synthesizer for Intel-based server platforms. It has 85 ohm Low-Power ( LP ) HCSL outputs that save 48 resistors and reduce power consumption by 50% compared to the standard CK420BQ . The 932SQL456 is driven with a 25MHz crystal for maximum... [See More]

  • Device Type: Real Time Clock
  • Package Type: Surface Mount; TSSOP; TSSOP
  • Bus Interface: LP-HCSL,LVTTL
  • Supply Voltage: 3.3
Extremely Accurate SPI Bus RTC with Integrated Crystal and SRAM -- DS3234
from Maxim Integrated

The DS3234 is a low-cost, extremely accurate SPI ™ bus real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The DS3234 incorporates a precision, temperature-compensated voltage reference and comparator circuit to monitor VCC. When VCC drops... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 2 to 5.5
  • Package Type: Surface Mount; SOIC
  • Operating Temperature: -40 to 85
PCI Express GEN1 Clock Source -- 557M-01LF
from Integrated Device Technology

The 557-01 is a clock chip designed for use in PCI Express ® Cards as a clock source. It provides a pair of differential outputs at 100 MHz in a small 8-pin SOIC package. Using IDT ’s patented Phase-Locked Loop ( PLL ) techniques, the device takes a 25 MHz crystal input and produces HCSL... [See More]

  • Device Type: Real Time Clock
  • Package Type: Surface Mount; SOIC; SOIC
  • Bus Interface: HCSL
  • Supply Voltage: 3.3
I²C 32-Bit Binary Counter RTC -- DS1672
from Maxim Integrated

The DS1672 low-voltage serial timekeeping chip incorporates a 32-bit counter and power-monitoring functions. The 32-bit counter is designed to count seconds and can be used to derive time-of-day, week, month, and year by using a software algorithm. A precision, temperature-compensated reference and... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 2 to 3.3
  • Package Type: Surface Mount; PDIP; SOIC; µMAX, PDIP(N), SOIC(N)
  • Operating Temperature: -40 to 85
PCI Express Jitter Attenuator -- 874003AG-02LF
from Integrated Device Technology

The 874003-02 is a high performance Differential-to- LVDS Jitter Attenuator designed for use in PCI Express systems. In some PCI Express systems, such as those found in desktop PCs, the PCI Express clocks are generated from a low bandwidth, high phase noise PLL frequency synthesizer. In these... [See More]

  • Device Type: Real Time Clock
  • Package Type: Surface Mount; TSSOP; TSSOP
  • Bus Interface: LVDS; LVDS
  • Supply Voltage: 3.3
I²C Digital Input RTC with Alarm -- DS1375
from Maxim Integrated

The DS1375 digital real-time clock (RTC) is a low-power clock/calendar that does not require a crystal. The device operates from a digital clock input pin at one of four frequencies: 32.768kHz, 8.192kHz, 60Hz, or 50Hz. It maintains seconds, minutes, hours, day, date, month, and year information. The... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.8 to 5
  • Package Type: Surface Mount; TDFN-EP
  • Operating Temperature: -40 to 85
PECL Input Oscar User Configurable Clock -- 525R-03ILF
from Integrated Device Technology

The 525-03 are the most flexible way to generate a high-quality, high-accuracy, high-frequency clock output from a PECL input. The name OSCaR stands for OSCillator Replacement, as they are designed to replace crystal oscillators in almost any electronic system. The user can configure the device to... [See More]

  • Device Type: Real Time Clock
  • Package Type: Surface Mount; QSOP; QSOP
  • Bus Interface: LVPECL; LVCMOS,LVPECL
  • Supply Voltage: 3.3 to 5
I²C RTC with 56-Byte NV RAM -- DS1338C
from Maxim Integrated

The DS1338 serial real-time clock (RTC) is a low-power, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM. Address and data are transferred serially through an I ²C interface. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.8 to 5
  • Package Type: Surface Mount; SOIC; µMAX, SOIC(N), SOIC(W)
  • Operating Temperature: -40 to 85
Programmer Board for VersaClock 3S - 5P3502x -- EVK5P35021PROG
from Integrated Device Technology

The VersaClock 3S - 5P3502x programmer board is made to ease the programming of blank 5P35023 and 5P35021 devices. With the on-board USB interface, IDT Timing Commander ™ GUI can be used to communicate with the blank device in the socket for configuration and programming. [See More]

  • Device Type: Real Time Clock
  • Operating Temperature: 0.0 to 70
  • Package Type: Surface Mount; BOARD
I²C RTC with Trickle Charger -- DS1340
from Maxim Integrated

The DS1340 is a real-time clock (RTC)/calendar that is pin compatible and functionally equivalent to the ST M41T00, including the software clock calibration. The device additionally provides trickle-charge capability on the VBACKUP pin, a lower timekeeping voltage, and an oscillator STOP flag. Block... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.8 to 5
  • Package Type: Surface Mount; SOIC; µMAX, SOIC(N), SOIC(W)
  • Operating Temperature: -40 to 85
Programmer Board for VersaClock 5 - 5P49V59xx -- EVKVC5-5901PROG
from Integrated Device Technology

The VersaClock 5 - 5P49V59xx programmer board is made to ease the programming of blank 5P49V59xx parts. With the on-board USB interface, IDT Timing Commander ™ GUI can be used to communicate with the blank device in the socket for configuration and programming. Comaptible with 5P49V5901 ,... [See More]

  • Device Type: Real Time Clock
  • Operating Temperature: 0.0 to 70
  • Package Type: Surface Mount; BOARD
I²C RTC/Supervisor with Trickle Charger and 512 Bytes EEPROM -- DS1388
from Maxim Integrated

The DS1388 I ²C real-time clock (RTC), supervisor, and EEPROM is a multifunction device that provides a clock/calendar, programmable watchdog timer, power-supply monitor with reset, and 512 bytes of EEPROM. The clock provides hundredths of seconds, seconds, minutes, and hours, and operates in... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 3 to 5
  • Package Type: Surface Mount; SOIC
  • Operating Temperature: -40 to 85
Programmer Board for VersaClock 6 - 5P49V69xx -- EVKVC6-6901PROG
from Integrated Device Technology

The VersaClock 6 - 5P49V69xx programmer board is made to ease the programming of blank 5P49V69xx parts. With the on-board USB interface, IDT Timing Commander ™ GUI can be used to communicate with the blank device in the socket for configuration and programming. Comaptible with 5P49V6901 ,... [See More]

  • Device Type: Real Time Clock
  • Operating Temperature: -40 to 85
  • Package Type: Surface Mount; BOARD
I²C Serial Real-Time Clock -- DS1337
from Maxim Integrated

The DS1337 serial real-time clock is a low-power clock/calendar with two programmable time-of-day alarms and a programmable square-wave output. Address and data are transferred serially through an I ²C bus. The clock/calendar provides seconds, minutes, hours, day, date, month, and year... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 2 to 5
  • Package Type: Surface Mount; PDIP; SOIC; µMAX, PDIP(N), SOIC(N), SOIC(W)
  • Features / Standards: RoHS
Quad Differential PCI-Express GEN1 Clock Source -- 557G-05ALF
from Integrated Device Technology

The 557-05A is a spread-spectrum clock generator that supports PCI -Express requirements. It is used in PC or embedded systems to substantially reduce electro-magnetic interference ( EMI ). The device provides four differential HCSL or LVDS high-frequency outputs with spread spectrum capability. The... [See More]

  • Device Type: Real Time Clock
  • Package Type: Surface Mount; TSSOP; TSSOP
  • Bus Interface: HCSL
  • Supply Voltage: 3.3
I²C Serial Real-Time Clock -- DS1339
from Maxim Integrated

The DS1339 serial real-time clock (RTC) is a low-power clock/date device with two programmable time-of-day alarms and a programmable square-wave output. Address and data are transferred serially through an I ²C bus. The clock/date provides seconds, minutes, hours, day, date, month, and year... [See More]

  • Device Type: Real Time Clock
  • Supply Voltage: 1.8 to 5.5
  • Package Type: Surface Mount; SOIC; µMAX, SOIC(W)
  • Operating Temperature: -40 to 85