3.3 V Logic Counters
Reviewed by: Jon Lowy, consulting engineer
Description
3.3 V logic counters are digital devices used to count the number of occurrences of an event, typically represented by electrical pulses. These counters operate at a voltage level of 3.3 volts, which is common in modern low-power digital circuits. They are constructed using flip-flops and can be designed to count in binary or other number systems. The counters can be either synchronous, where all flip-flops are triggered simultaneously, or asynchronous, where each flip-flop is triggered by the previous one.
Working Principle
The working principle of 3.3 V logic counters involves the use of flip-flops that change state in response to input pulses. In synchronous counters, all flip-flops receive the clock pulse simultaneously, ensuring that the output bits change state at the same time. This eliminates the ripple effect seen in asynchronous counters, where each flip-flop is triggered by the output of the previous one, causing a slight delay. The counters can be designed to count up, down, or in both directions, depending on the application requirements.
Applications
3.3 V logic counters are widely used in various applications, including digital clocks, frequency counters, event counters, and in digital systems for measuring time intervals. They are also used in microcontrollers and other embedded systems for tasks such as pulse counting, time measurement, and generating time delays.
Advantages over other Logic Counters
One of the primary advantages of 3.3 V logic counters over other logic counters is their lower power consumption, making them suitable for battery-operated and low-power devices. Additionally, the use of 3.3 V logic levels is compatible with many modern digital circuits and microcontrollers, facilitating easier integration into existing systems. Synchronous 3.3 V logic counters also offer faster operation compared to asynchronous counters, as they eliminate the cumulative delay caused by the ripple effect.
Limitations
Despite their advantages, 3.3 V logic counters have some limitations. They may not be suitable for high-voltage applications where higher logic levels are required. Additionally, the lower voltage levels can make them more susceptible to noise and signal degradation, which can affect their reliability in noisy environments. The design complexity can also increase when implementing synchronous counters, as they require more precise timing and control circuitry.
Considerations
When designing or selecting a 3.3 V logic counter, it is important to consider factors such as the type of counter (synchronous or asynchronous), the counting direction (up, down, or bidirectional), and the specific logic family (e.g., CMOS, TTL) to ensure compatibility with the rest of the system. The operating environment and potential noise sources should also be taken into account to ensure reliable operation.
from Nexperia B.V.
The 74HC4040; 74HCT4040 is a 12-stage binary ripple counter with a clock input (CP), an overriding asynchronous master reset input (MR) and twelve parallel outputs (Q0 to Q11). The counter advances on the HIGH-to-LOW transition of CP. A HIGH on MR clears all counter stages and forces all outputs... [See More]
- Supply Voltage: 2.5V; 3V; 3.3V; 3.6V; 5V; 2.0 - 6.0
- Package Type: SOT763-1
- Counter Category: Asynchronous
- Logic Family: CMOS; CMOS
from Texas Instruments
Synchronous Presettable Binary Counters with Asynchronous Reset 16-PDIP -55 to 125 [See More]
- Supply Voltage: 1.5V; 3.3V; 5V; 5.5
- Package Type: PDIP,SOIC
- Counter Category: Synchronous; Asynchronous; Synchronous / Asynchronous
- Logic Family: AC
from Nexperia B.V.
The 74HC4040; 74HCT4040 is a 12-stage binary ripple counter with a clock input (CP), an overriding asynchronous master reset input (MR) and twelve parallel outputs (Q0 to Q11). The counter advances on the HIGH-to-LOW transition of CP. A HIGH on MR clears all counter stages and forces all outputs... [See More]
- Supply Voltage: 2.5V; 3V; 3.3V; 3.6V; 5V; 2.0 - 6.0
- Package Type: SOT109-1
- Counter Category: Asynchronous
- Logic Family: CMOS; CMOS
from Texas Instruments
Synchronous Presettable Binary Counters with Synchronous Reset 16-PDIP -55 to 125 [See More]
- Supply Voltage: 1.5V; 3.3V; 5V; 5.5
- Package Type: PDIP,SOIC
- Counter Category: Synchronous
- Logic Family: AC
from Nexperia B.V.
The 74HC4040; 74HCT4040 is a 12-stage binary ripple counter with a clock input (CP), an overriding asynchronous master reset input (MR) and twelve parallel outputs (Q0 to Q11). The counter advances on the HIGH-to-LOW transition of CP. A HIGH on MR clears all counter stages and forces all outputs... [See More]
- Supply Voltage: 2.5V; 3V; 3.3V; 3.6V; 5V; 2.0 - 6.0
- Package Type: SOT403-1
- Counter Category: Asynchronous
- Logic Family: CMOS; CMOS
from Texas Instruments
High Speed CMOS Logic 4-Bit Binary Counter with Asynchronous Reset 16-PDIP -55 to 125 [See More]
- Supply Voltage: 3.3V; 5V; 6
- Package Type: PDIP,SOIC
- Counter Category: Asynchronous
- Logic Family: HC
from Nexperia B.V.
The 74HC4024 is a 7-stage binary ripple counter with a clock input (CP), an overriding asynchronous master reset input (MR) and seven fully buffered parallel outputs (Q0 to Q6). The counter advances on the HIGH-to-LOW transition of CP. A HIGH on MR clears all counter stages and forces all outputs... [See More]
- Supply Voltage: 2.5V; 3V; 3.3V; 3.6V; 5V; 2.0 - 6.0
- Package Type: SO14 (SOT108-1)
- Counter Category: Asynchronous
- Logic Family: CMOS; CMOS
from Texas Instruments
High Speed CMOS Logic 4-Bit Binary Counter with Synchronous Reset 16-PDIP -55 to 125 [See More]
- Supply Voltage: 3.3V; 5V; 6
- Package Type: PDIP,SOIC
- Counter Category: Synchronous
- Logic Family: HC
from Nexperia B.V.
The 74HC393; 74HCT393 is a dual 4-stage binary ripple counter. Each counter features a clock input (nCP), an overriding asynchronous master reset input (nMR) and 4 buffered parallel outputs (nQ0 to nQ3). The counter advances on the HIGH-to-LOW transition of nCP. A HIGH on nMR clears the counter... [See More]
- Supply Voltage: 2.5V; 3V; 3.3V; 3.6V; 5V; 2.0 - 6.0
- Package Type: SOT762-1
- Counter Category: Asynchronous
- Logic Family: CMOS; CMOS
from Texas Instruments
High Speed CMOS Logic Presettable Synchronous BCD Decade Up/Down Counter 16-PDIP -55 to 125 [See More]
- Supply Voltage: 3.3V; 5V; 6
- Counter Category: Synchronous
- Counter Type: BCD/Decade Counter
- Counter Direction: Bidirectional
from Nexperia B.V.
The 74HC393; 74HCT393 is a dual 4-stage binary ripple counter. Each counter features a clock input (nCP), an overriding asynchronous master reset input (nMR) and 4 buffered parallel outputs (nQ0 to nQ3). The counter advances on the HIGH-to-LOW transition of nCP. A HIGH on nMR clears the counter... [See More]
- Supply Voltage: 2.5V; 3V; 3.3V; 3.6V; 5V; 2.0 - 6.0
- Package Type: SOT402-1
- Counter Category: Asynchronous
- Logic Family: CMOS; CMOS
from Texas Instruments
High Speed CMOS Logic Presettable Synchronous 4-Bit Binary Up/Down Counters 16-PDIP -55 to 125 [See More]
- Supply Voltage: 3.3V; 5V; 6
- Counter Direction: Bidirectional
- Counter Category: Synchronous
- Package Type: PDIP,SOIC
from Texas Instruments
High Speed CMOS Logic Presettable Synchronous BCD Decade Up/Down Counter with Asynchronous Reset 16-PDIP -55 to 125 [See More]
- Supply Voltage: 3.3V; 5V; 6
- Counter Category: Synchronous; Asynchronous; Synchronous / Asynchronous
- Counter Type: BCD/Decade Counter
- Counter Direction: Bidirectional
from Texas Instruments
High Speed CMOS Logic Presettable Synchronous 4-Bit Binary Up/Down Counter with Asynchronous Reset 16-PDIP -55 to 125 [See More]
- Supply Voltage: 3.3V; 5V; 6
- Counter Direction: Bidirectional
- Counter Category: Synchronous; Asynchronous; Synchronous / Asynchronous
- Package Type: PDIP,SOIC
from Texas Instruments
High Speed CMOS Logic Dual Decade Ripple Counters 16-PDIP -55 to 125 [See More]
- Supply Voltage: 3.3V; 5V; 6
- Package Type: PDIP,SOIC
- Counter Type: BCD/Decade Counter
- Logic Family: HC
from Texas Instruments
High Speed CMOS Logic Dual 4-Stage Binary Counters 14-PDIP -55 to 125 [See More]
- Supply Voltage: 3.3V; 5V; 6
- Logic Family: HC
- Package Type: PDIP,SOIC
- Number of Stages (Bits): 4
from Texas Instruments
High Speed CMOS Logic 8-Stage Synchronous Down Counters 16-PDIP -55 to 125 [See More]
- Supply Voltage: 3.3V; 5V; 6
- Package Type: PDIP,SO,SOIC,TSSOP
- Counter Category: Synchronous
- Logic Family: HC
from Texas Instruments
High Speed CMOS Logic Decade Counter/Divider with 10 Decoded Outputs 16-PDIP -55 to 125 [See More]
- Supply Voltage: 3.3V; 5V; 6
- Package Type: PDIP,SO,SOIC,TSSOP
- Counter Type: BCD/Decade Counter
- Logic Family: HC
from Texas Instruments
Automotive Catalog Decade Counter/Divider with 10 Decoded Outputs 16-TSSOP -40 to 125 [See More]
- Supply Voltage: 3.3V; 5V; 6
- Package Type: TSSOP
- Counter Type: BCD/Decade Counter
- Logic Family: HC
from Texas Instruments
High Speed CMOS Logic 14-Stage Binary Counter 16-PDIP -55 to 125 [See More]
- Supply Voltage: 3.3V; 5V; 6
- Logic Family: HC
- Package Type: PDIP,SOIC
- Number of Stages (Bits): 14
from Texas Instruments
High Speed CMOS Logic 7-Stage Binary Ripple Counter 14-PDIP -55 to 125 [See More]
- Supply Voltage: 3.3V; 5V; 6
- Logic Family: HC
- Package Type: PDIP,SO,SOIC,TSSOP
- Number of Stages (Bits): 7
from Texas Instruments
High Speed CMOS Logic 12-Stage Binary Counter 16-PDIP -55 to 125 [See More]
- Supply Voltage: 3.3V; 5V; 6
- Logic Family: HC
- Package Type: PDIP,SO,SOIC
- Number of Stages (Bits): 12
from Texas Instruments
High Speed CMOS Logic CMOS Programmable Divide-by-N Counter 24-PDIP -55 to 125 [See More]
- Supply Voltage: 3.3V; 5V; 6
- Logic Family: HC
- Package Type: PDIP,SOIC
- Number of Stages (Bits): 1
from Texas Instruments
High Speed CMOS Logic 14-Stage Binary Counter with Oscillator 16-PDIP -55 to 125 [See More]
- Supply Voltage: 3.3V; 5V; 6
- Logic Family: HC
- Package Type: PDIP,SOIC,TSSOP
- Number of Stages (Bits): 14
from Texas Instruments
High Speed CMOS Logic Dual BCD Up-Counter 16-PDIP -55 to 125 [See More]
- Supply Voltage: 3.3V; 5V; 6
- Package Type: PDIP
- Counter Type: BCD/Decade Counter
- Logic Family: HC
from Texas Instruments
High Speed CMOS Logic 4-Bit Binary Ripple Counter 14-PDIP -55 to 125 [See More]
- Supply Voltage: 3.3V; 5V; 6
- Logic Family: HC
- Package Type: PDIP,SOIC
- Number of Stages (Bits): 4
from Texas Instruments
4-Bit Synchronous Binary Counters 16-SOIC -40 to 85 [See More]
- Supply Voltage: 3.3V; 5V; 6
- Package Type: PDIP,SO,SOIC,TSSOP
- Counter Category: Synchronous
- Logic Family: HC
from Texas Instruments
4-Bit Synchronous Binary Counters 16-SOIC -40 to 85 [See More]
- Supply Voltage: 3.3V; 5V; 6
- Package Type: PDIP,SO,SOIC,TSSOP
- Counter Category: Synchronous
- Logic Family: HC
from Texas Instruments
Automotive Catalog 4-Bit Synchronous Binary Counters 16-TSSOP -40 to 85 [See More]
- Supply Voltage: 3.3V; 5V; 6
- Package Type: TSSOP
- Counter Category: Synchronous
- Logic Family: HC
from Texas Instruments
4-Bit Synchronous Up/Down Binary Counters 16-SOIC -40 to 85 [See More]
- Supply Voltage: 3.3V; 5V; 6
- Counter Direction: Bidirectional
- Counter Category: Synchronous
- Package Type: SO,SOIC,PDIP
from Texas Instruments
4-Bit Synchronous Up/Down Counters (Dual Clock With Clear) 16-SOIC -40 to 85 [See More]
- Supply Voltage: 3.3V; 5V; 6
- Counter Direction: Bidirectional
- Counter Category: Synchronous
- Package Type: PDIP,SO,SOIC,TSSOP
from Microchip Technology, Inc.
The SY89221U is a 2.5/3.3V precision, high-speed, integrated clock divider and LVPECL fanout buffer capable of handling clocks up to 1.5GHz. Optimized for communications applications, the four independently controlled output banks are phasematched and can be configured for pass through ÷1,... [See More]
- Supply Voltage: 2.5V; 3.3V
- Logic Family: LVPECL
- Package Type: ['TQFP']
- Operating Current: 140