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ATF1502AS

MCHPATF1502AS

Microchip
Another family variant for minimal glue-logic needs with a reduced feature set and footprint.
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Overview

The Microchip ATF1502AS is a 5V, 32-macrocell Complex Programmable Logic Device (CPLD) offering 32 I/O pins in a 44-TQFP package. It provides a compact and flexible solution for implementing digital logic, featuring in-system programmability (ISP) and advanced power management options. This CPLD is suitable for general-purpose glue logic applications.

Why Choose This Part

Engineers benefit from the ATF1502AS's 5V operation, making it compatible with many legacy systems and industrial applications. Its in-system programmability (ISP) via JTAG simplifies development and field updates. The programmable output slew rate and open collector options provide flexibility for various interface requirements, while advanced power management helps optimize power consumption for the 'L' version with 10uA standby current.

Applications

General Purpose Glue Logic
Integrating multiple discrete logic gates and small logic functions into a single programmable device to reduce board space and component count.
I/O Expansion
Expanding the number of available I/O pins for microcontrollers or other embedded processors, managing diverse peripheral interfaces.
State Machine Implementation
Implementing custom state machines for controlling system operations, sequence generation, and protocol handling.
Bus Interface Logic
Providing custom logic for interfacing between different bus architectures or adapting signal levels and timing.
Simple Data Processing
Performing basic data manipulation, such as data routing, multiplexing, demultiplexing, and encoding/decoding operations.

Key Specifications

Mounting Type Surface Mount
Number of I/O 32
Package / Case 44-TQFP
Programmable Type In System Programmable (min 10K program/erase cycles)
Number of Macrocells 32
Delay Time tpd(1) Max 10 ns
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 44-TQFP (10x10)
Voltage Supply - Internal 4.5V ~ 5.5V

Getting Started

To get started with the ATF1502AS, engineers typically use Microchip's development tools and software for CPLD design and programming. The device's JTAG interface allows for in-system programming and boundary-scan testing, facilitating rapid prototyping and debugging. Refer to the device datasheet and Microchip's application notes for detailed programming procedures and design examples.

Also Consider

ATF1504AS-10AU44 MCHPMicrochip Technology - This CPLD offers 64 macrocells, providing more logic capacity for designs that require additional complexity while staying within the same family.
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