MCHPATF1504ASL-25AU44

Overview

The ATF1504ASL-25AU44 is a high-performance, 5V Complex Programmable Logic Device (CPLD) with 64 macrocells and In-System Programming (ISP) capabilities. This device utilizes CMOS technology and is designed to provide 25ns maximum propagation delays for standard power logic consolidation in legacy 5V systems. It features a JTAG interface for programming and testing, along with 32 user-definable I/O pins in a compact 44-TQFP package.

Why Choose This Part

The ATF1504ASL-25AU44 supports at least 10,000 program/erase cycles, ensuring long-term reliability for field updates. Its 5V-tolerant I/O and standard 5V internal supply voltage make it ideal for interfacing with older digital components without requiring level shifters. The inclusion of JTAG ISP allows for streamlined prototyping and production programming without removing the chip from the board.

Applications

Getting Started

To design with this CPLD, use the Microchip WinCUPL or ProChip Designer software tools to define logic using VHDL, Verilog, or ABEL. Programming is typically performed via a JTAG-compatible programmer such as the ATDH1150USB. Engineers should ensure adequate decoupling capacitors are placed near the 44-TQFP VDD pins to manage the 85mA run current.

ATF1504ASL-25 Family

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