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Data Bus:

Life Cycle Stage:

Clock Speed:

Number of Interrupts:

Internal RAM Size:

Internal ROM Size:

Internal ROM Type:

Supply Voltage (Vcc):

Supply Current:

Power Dissipation:

Number of bits:

Number of Timers:

Serial Interfaces:

Serial Port Channels:

Number of I/O Ports:

A/D Converter:

Number of A/D Converters:

IC Package Type:

Operating Range:

Pin Count:

Operating Temperature:

Allow up to: overrange/margin
Use the overrange/margin to restrict your search to items whose full-scale range is close to your requirements.
(Overrange/margin requires both 'From' and 'To' values to work.)

Watchdog Timer?

DMA Channels?

PWM Channels?

Power Saving Modes?

Oscillator Safeguard (OSG)?

Low Frequency Auxiliary Oscillator (LFAO)?

Low Voltage Detector (LVD)?

Readout Protection?

LCD Driver?

Help with Microcontrollers (MCU) specifications:

General Specifications
   Data Bus      The number of bits the data bus can transfer at the same time. A bidirectional set of conductive paths on which data or instruction codes are transferred into the DSP, or on which the result of an operation or computation is sent out from the DSP.
   Your choices are...         
   4 Bit       The microcontroller has a 4-bit data bus. 
   8 Bit       The microcontroller has an 8-bit data bus. 
   16 Bit       The microcontroller has a 16-bit data bus. 
   32 Bit       The microcontroller has a 32-bit data bus. 
   64 Bit       The microcontroller has a 64-bit data bus. 
   128 Bit       The microcontroller has a 128-bit data bus. 
   Other       Other unlisted data bus. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Life Cycle Stage      This is the current product lifecycle stage, as defined by EIA-724.
   Your choices are...         
   Introduction       Product planning or design is underway. Samples may or may not exist. Specification changes may occur and planned introduction dates may be delayed. Orders and product shipments are not permitted. This stage is not part of the EIA-724 product life cycle data model. 
   New Product       Production is beginning to ramp up. Limited quantities are available. Orders and shipments are permitted. This stage is part of the EIA-724 product life cycle data model. 
   Rapid Growth       Production is increasing rapidly. Manufacturing capacity is being added. Orders and shipments are permitted. This stage is part of the EIA-724 product life cycle data model. 
   Maturity       Product growth has stabilized or peaked. Product quality is very high. Orders and shipments are permitted. Product is recommended for use in new designs. This stage is part of the EIA-724 product life cycle data model. 
   Saturation       Sales and capacity have peaked. Orders and shipments are permitted. This stage is part of the EIA-724 product life cycle data model. 
   Not Recommended (Declining)       Capacity is beginning to decline. Orders and shipments are permitted, but devices are not recommended for new designs. This stage is part of the EIA-724 product life cycle data model. 
   Phase Out       Capacity is declining rapidly. A formal discontinuance notice may be issued. Limitations on shipments can occur, but orders are still allowed. Devices are not considered for new designs. This stage is part of the EIA-724 product life cycle data mode. 
   Last Shipments       Final shipments are made for existing orders. New orders are limited to existing or residual inventories. Manufacturing capacity limitations may exist. This stage is not part of the EIA-724 product life cycle data model. 
   Removed       Devices are unavailable. Product inventories and all supporting hardware, software, and documentation have been removed. New orders and new shipments are not permitted. This stage is not part of the EIA-724 product life cycle data model. 
   Other       Other unlisted life cycle stages. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Clock Speed:       The speed of the microcontroller clock. The maximum frequency of the device. 
   Search Logic:      All matching products will have a value greater than or equal to the specified value.
   Number of Interrupts       An asynchronous electrical signal from a peripheral to the processor. When the peripheral asserts this signal, we say that an interrupt occurs. When an interrupt occurs, the current context is saved and an interrupt service routine is executed. When the interrupt service routine exits, control of the processor is returned to whatever part of the software was previously running. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Memory
   Internal RAM Size       Random access memory (RAM) can be read from or written to in a nonlinear manner. RAM derives its name from the fact that any byte of memory can be accessed randomly instead of sequentially. RAM does not retain data in memory when power is removed. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Internal ROM Size       Read-only memory (ROM) contains pre-programmed data and is either unchangeable or requires a special operation to overwrite. ROM retains data in memory when power is removed. A photosensitive material is etched to hold the required bit pattern. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Internal ROM Type      The type of the on-chip instruction ROM.
   Your choices are...         
   ROMLess       Devices do not include read-only memory (ROM). 
   Mask ROM       Mask ROM is static, read-only memory (ROM) that is programmed during fabrication with a special mask that contains the customer code. The code cannot be modified afterwards. Manufacturers that produce large semiconductors often use Mask ROM because it is the most cost-effective ROM available. 
   EPROM       Erasable programmable read-only memory (EPROM) is a type of PROM that can be erased through exposure to ultraviolet light and then reprogrammed. 
   EEPROM       Electrically erasable programmable read-only memory (EEPROM) is a type of PROM that can be erased electrically and then reprogrammed. 
   Flash       Flash is a form of electrically erasable, programmable, read-only memory (EEPROM) that can be erased and reprogrammed in blocks instead of one byte at a time. Flash memory is non-volatile, which means that it does not need a constant power supply in order to retain data. Flash offers extremely fast access times, low power consumption, and relative immunity to severe shock or vibration. Flash memory chips have a lifespan of approximately 100,000 write cycles - a fact that makes Flash unsuitable for use as computer main memory. Typically, Flash memory chips are used in portable or compact devices such as digital cameras, cell phones, pagers, and scanners. Flash memory chips are also used as solid-state disks in laptops and as memory cards for video game consoles. 
   FASTROM       Factory advanced service technique read-only memory (FASTROM) is pre-programmed by the manufacturer with the customer's code and selected options. Compared to Flash, FASTROM provides improved programming efficiency for large quantities (10,000+). Compared to Mask ROM, FASTROM offers shorter lead-times and reprogrammability. 
   OTP       One time programmed memory (OTP). 
   Other       Other unlisted or proprietary ROM types. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Power Characteristics
   Supply Voltage (Vcc):       The value as specified by level (Min-Typ-Max) of the direct supply voltage, applied to an IC. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Supply Current       The continuous current (in A) required by this item during normal operation. 
   Search Logic:      All matching products will have a value less than or equal to the specified value.
   Power Dissipation       The maximum permissible power dissipation per output (in W) of this item at specified ambient temperature. 
   Search Logic:      All matching products will have a value less than or equal to the specified value.
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Timers The timer type(s), and the number of bits and number of channels provided.
   Number of bits      The number of bits of the timer.
   Your choices are...         
   8 Bit       The microcontroller has an 8-bit timer. 
   16 Bit       The microcontroller has a 16-bit timer. 
   24 Bit       The microcontroller has a 24-bit timer. 
   32 Bit       The microcontroller has a 32-bit timer. 
   Other       Any other timer not listed. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Number of Timers:       The number of timers embedded in the microcontroller. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Interfaces and Ports Connection to a microcontroller that provides a data path between the microcontroller and external devices, such as a keyboard, display, or reader. It may provide input only, output only, or both input and output.
   Serial Interfaces      The serial interface type(s), and the number of channels provided.
   Your choices are...         
   CAN       The Controller Area Network (CAN) protocol is a serial communication protocol originally developed by Robert Bosch for use in serial communication networks in vehicles. Several major auto manufacturers are either using CAN networks in their vehicles or are developing them for future vehicles. In addition, CAN is becoming very popular for use in factory-floor automation-type industrial networks. The major players in industrial automation, including Allen-Bradley, Honeywell, and Eaton Cutler-Hammer, are all manufacturing CAN-based industrial control systems, and are publicizing their beliefs that the CAN protocol is the best solution for this type of control network. 
   I²C       Inter-Integrated Circuit (I²C) is a bus is an inexpensive type of chip interconnection that is popular on circuit boards  (pronounced "Eye Squared C"). 
   SPI       The Serial Peripheral Interface (SPI) is similar to the SCI, although it is used to communicate synchronously over shorter distances at up to 4 Mbit/s. The SPI allows the microcontroller to communicate with peripheral devices, which could be anything from a simple TTL shift register to a complete subsystem such as an LCD display or an A/D converter system. The SPI is flexible enough to interface directly with numerous standard peripherals from many manufacturers. SPIs can also be used to expand the number of inputs and outputs of the microcontroller with the minimum number of pins. 
   SCI       The Serial Communications Interface (SCI) is an independent serial I/O subsystem (full-duplex UART-type asynchronous system). The SCI can be used for communications between the microcontroller and a terminal, PC, or other microcontrollers in the form of a network. An on-chip baud rate generator derives standard baud-rate frequencies from the microcontroller oscillator. 
   UART       Generically, this refers to any device capable of implementing a variety of asynchronous serial protocols, such as RS 232, HDLC and SDLC. In this context, it refers to the operating mode of the SCCs that provides this functionality. 
   USART       USART is a full duplex synchronous / asynchronous receiver and transmitter that supports a wide range of software programmable baud rates and data formats 
   USB       Universal Serial Port. 
   Other       Other unlisted interface types. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Serial Port Channels:       The number of serial ports the microcontroller has. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Number of I/O Ports       The total number of input, output, and I/O ports combined. An I/O port is a connection to a CPU that is configured or programmed to provide data path between the CPU and external devices such as a keyboard, display, or reader; it may be an input port or an output port, or it may be bi-directional. 
   Search Logic:      All matching products will have a value greater than or equal to the specified value.
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Converters The resolution of the A/D and D/A converters, and the number of channels provided.
   A/D Converter      The resolution of the A/D converter.
   Your choices are...         
   8 Bit       The microcontroller has an 8-bit A/D. 
   16 Bit       The microcontroller has a 16-bit timer. 
   24 Bit       The microcontroller has a 24-bit timer. 
   32 Bit       The microcontroller has a 32-bit timer. 
   Other       Other unlisted converters. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Number of A/D Converters       A/D converters take analog inputs and convert them to digital signals. For example, a sine wave input can be converted into a series of numbers that represent the value of the input curve at any given point on the curve. The resolution of the converter is determined by the number of bits (the more the better) and the sample rate (the faster the better). 
   Search Logic:      All matching products will have a value greater than or equal to the specified value.
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Packaging Information
   IC Package Type       
   Your choices are...         
   Bare Die       The device is sold in semiconductor die form. It does not have a case or packaging. 
   BGA       Ball-grid array (BGA) places output pins in a solder ball matrix. Generally, BGA traces are fabricated on laminated (BT-based) substrates or polyimide-based films. Therefore, the entire area of substrates or films can be used to route the interconnection. BGA has another advantage of lower ground or power inductance by assigning ground or power nets via a shorter current path to PCB. Thermally enhanced mechanisms (heat sink, thermal balls, etc.) can be applied to BGA to reduce the thermal resistance. The sophisticated capabilities make BGA the desirable package to implement electrical and thermal enhancement in response to the need for high power and high speed ICs. 
   FCBGA       Flip chip ball-grid array (FCBGA) uses a combination of flip chip and ball grid array features. FCBGA enables short electrical paths for high frequency applications. The simultaneous soldering of all joints in one pass through a reflow furnace facilitates the mounting of packages with thousands of solder joints. 
   MCM-PBGA       Multi-chip module plastic ball-grid array (MCM-PBGA). 
   PBGA       Plastic ball-grid array (PBGA) is the general terminology for the BGA package adopting plastic (epoxy molding compound) as the encapsulation. According to JEDEC standard, PBGA refers to an overall thickness of over 1.7mm. 
   TBGA       Tape ball-grid array (TBGA) uses a fine, polyimide substrate and provides good thermal performance with high pin counts. 
   CSP       Chip scale package or chip size package (CSP) has an area that is no more than 20% larger than the built-in die. CSP is compact for second level packaging efficiency and encapsulated for second level reliability. CSP is superior to both direct-chip-attach (DCA) and chip-on-board (COB) technologies. CSP is used in a variety of integrated circuits (IC), including radio frequency ICs (RFIC), memory ICs, and communication ICs.   
   FCCSP       Flip-chip chip-scale package (FCCSP). 
   SuperFC®       Super flip-chip or SuperFC® packages feature a controlled bondline die attached directly to a copper heat spreader.  SuperFC® is a registered trademark of Amkor. 
   SCSP       Stacked-chip scale package (SCSP) is a technology where two or more dies are stacked within a single package assembly. 
   UCSP       Ultra chip scale package (UCSP). 
   FCPGA       Flip-chip pin-grid array (FCPGA) attaches the chip to the board facedown, without any wire bonding. 
   CPGA       Ceramic pin-grid array (CPGA). 
   PPGA       Plastic pin-grid array (PPGA). 
   CDIP       Ceramic dual in-line package (CDIP) consists of two pieces of dry pressed ceramic surrounding a "DIP formed" lead frame. The ceramic / LF / ceramic system is held together hermetically by frit glass reflowed at temperatures between 400° - 460° centigrade. 
   PDIP       Plastic dual in-line package (PDIP) is widely used for low cost, hand-insertion applications including consumer products, automotive devices, logic, memory ICs, micro-controllers, logic and power ICs, video controllers commercial electronics and telecommunications. 
   FLGA       Fine-pitch land-grid array (FLGA) is extremely compact and lightweight, making it suitable for miniature disc drives and digital cameras. 
   HSOF       Small outline flat-leaded package with heat sink (HSOF). 
   LCCC       Leadless ceramic chip carrier (LCCC). 
   PLCC       Plastic leaded chip carrier (PLCC). 
   QFP       Quad flat packages (QFP) contain a large number of fine, flexible, gull wing shaped leads. Lead width can be as small as 0.16 mm. Lead pitch is 0.4 mm. QFPs provide good second-level reliability and are used in processors, controllers, ASICs, DSPs, gate arrays, logic, memory ICs, PC chipsets, and other applications.  
   LQFP       Low quad flat package (LQFP). 
   PQFP       Plastic quad flat package (PQFP). 
   QFNL       Quad flat non-leaded package (QFNL). 
   TQFP       Thin quad flat package (TQFP). 
   SDIP       Shrink dual in-line package (SDIP). 
   SIP       Single in-line package (SIP). 
   SOJ       Small outline J-lead (SOJ) is a common form of surface-mount DRAM packaging. It is a rectangular package with J-shaped leads on the two long sides of the device. 
   SOIC       Small outline integrated circuit (SOIC). 
   SOP       Small outline package (SOP). 
   SSOP       Shrink small outline package (SSOP). 
   SZIP       Shrink zigzag in-line package (SZIP). 
   TSOP Type I       Thin small outline package (TSOP), Type I is a type of DRAM package that uses gull wing shaped leads on both sides. TSOP DRAM mounts directly on the surface of the printed circuit board. The advantage of the TSOP package is that it is one-third the thickness of an SOJ package. TSOP components are commonly used in small outline DIMM and credit card memory applications. 
   TSOP Type II       Thin small outline package (TSOP), Type II is a type of DRAM package that uses gull wing shaped leads on both sides. TSOP DRAM mounts directly on the surface of the printed circuit board. The advantage of the TSOP package is that it is one-third the thickness of an SOJ package. TSOP components are commonly used in small outline DIMM and credit card memory applications. Thin small outline package may be Type I or Type II. 
   TSSOP       Thin shrink small outline L-leaded package (TSSOP). 
   TVSOP       Thin very small outline package (TVSOP). 
   Other       Other unlisted, specialized, or proprietary packages. 
   Search Logic:      Products with the selected attribute will be returned as matches. Leaving or selecting "No Preference" will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Operating Range      The industrial field in which the device will be used. 
   Your choices are...         
   Commercial         
   Industrial         
   Military         
   Automotive         
   Other         
   Search Logic:      Products with the selected attribute will be returned as matches. Leaving or selecting "No Preference" will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Pin Count       The number of pins the DSP has.  The question is presented as a range for convenience of selection. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Operating Temperature:       The value as specified by level (Min-Typ-Max) of the ambient temperature (in degree Celsius) in which this microcontroller was designed to operate. 
   Search Logic:      User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
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Other Functions / Features
   Watchdog Timer?       A watchdog timer is a simple countdown timer, which is used to reset a microprocessor after a specific interval of time. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   DMA Channels       Direct Memory Access (DMA is a technique for transferring data directly between two peripherals (usually memory and an I/O device) with only minimal intervention by the processor. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   PWM Channels       Pulse Width Modulation (PWM) is a technique for controlling analog circuits with a processor's digital outputs. PWM is employed in a wide range of applications, from measurement and communications to power control and conversion. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Power Saving Modes       Functions that allow the microcontroller to same power.  Some of these functions include: Wait Mode, STOP Mode, SLEEP Mode, etc. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Oscillator Safeguard (OSG)       The Oscillator Safeguard (OSG) feature provides the following functions to the MCU: Filters spikes in the oscillator lines, Manages the Low Frequency Auxiliary Oscillator (LFAO), and Automatically limits the internal frequency (fINT) clock frequency as a function of supply voltage. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Low Frequency Auxiliary Oscillator (LFAO)       A backup oscillator. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Low Voltage Detector (LVD)       The Low Voltage Detector (LVD) allows the MCU to be used without any external RESET circuitry. If the LVD is not used, an external circuit is mandatory to ensure correct Power On Reset operation. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Readout Protection       The Readout Protection feature is used to protect the program memory against external readout. Once the Readout Protection is active, it is no longer possible to gain access to the OTP or ROM content. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   LCD Driver       A feature used to connect and control external LCDs. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
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