ATF1504AS-10JI68

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Embedded - CPLDs (Complex Programmable Logic Devices)

The ATF1504AS-10JI68 is a Complex Programmable Logic Device (CPLD) designed by Atmel. A CPLD is an integrated circuit that contains many programmable logic elements on a single chip, usually a stack of logic gates and registers, as well as input and output pins. CPLDs are commonly used as glue logic in embedded systems, as they can be quickly programmed to meet the functional requirements of the system.

Application Field

ATF1504AS-10JI68 CPLDs are primarily used in embedded systems where the vast majority of the processor needs to be highly optimized for the application. CPLDs are capable of taking complex logic from difficult to program microcontrollers and implementing them in a smaller package and with greater efficiency. Examples of applications that can benefit from the use of a CPLD include automotive systems, industrial automation, military embedded systems, and medical instrumentation.

Working Principle

A CPLD is a programmable logic device, meaning that it can be programmed to perform a variety of logic functions. In the case of the ATF1504AS-10JI68, it has a logic layer consisting of 4,096 logic elements, split into 4,096 product terms (the basic building blocks of a CPLD) and 8,192 flip-flops. This structure allows for highly optimized and customized logic functions to be implemented within the same chip, making it an ideal solution for embedded systems.

The CPLD is programmed from an external source, such as an EPROM, a JTAG-capable device, or an FPGA. Once programmed, the CPLD stores the programmed information and can then be used to implement the desired logic functions. Programming can be reprogrammed as needed if the application logic changes, making it a versatile solution for embedded systems.

Conclusion

The Atmel ATF1504AS-10JI68 CPLD is an excellent choice for embedded systems applications. It provides programmable logic functions in a small and efficient package, making it an ideal solution for applications that require highly optimized logic functions. The CPLD can be easily programmed and reprogrammed as needed, making it a versatile and cost-efficient solution for embedded systems.

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