Unlocking Design Flexibility with the Microchip ATF1502AS-7AX44 44-Pin PLCC CPLD

In the realm of digital logic design, Complex Programmable Logic Devices (CPLDs) serve as critical components for integrating complex combinatorial and sequential logic onto a single chip. The Microchip ATF1502AS-7AX44 stands as a prominent example of this technology, packaged in a 44-pin PLCC (Plastic Leaded Chip Carrier) format. This device is engineered to offer a balanced mix of density, performance, and power efficiency, making it suitable for a wide array of applications from industrial control systems to communication interfaces.

A key feature of the ATF1502AS is its 7ns pin-to-pin logic propagation delay, which enables high-speed operation essential for time-critical applications. The device is built on EE CMOS technology, ensuring low power consumption while providing non-volatile configuration memory. This means the programmed logic pattern is retained even when power is removed, eliminating the need for an external configuration device at startup.

The architecture incorporates 32 macrocells, organized into two logic blocks, which can be efficiently utilized to implement a variety of logic functions. With 44 pins, the package offers a sufficient number of user I/O pins to interface with other components in a system, such as memories, microcontrollers, and peripheral chips. The in-system programmability (ISP) feature via a JTAG interface allows for rapid design iterations and field upgrades without removing the device from the circuit board, significantly reducing development time and cost.

Designers often leverage this CPLD for glue logic consolidation, state machine implementation, and address decoding. Its robust performance and reliability are further enhanced by Microchip’s proven quality and support, making it a dependable choice for both prototyping and production.

ICGOO FIND: The Microchip ATF1502AS-7AX44 CPLD provides an effective solution for integrating complex digital logic, offering high speed, low power, and design flexibility in a compact 44-pin PLCC package.

Keywords: CPLD, Programmable Logic, In-System Programmability, JTAG, Macrocell