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ATF1502AS-10JU44

MCHPATF1502AS-10JU44

Microchip Technology
CPLD - Complex Programmable Logic Devices CPLD 32 MACROCELL ISP STD PWR 5V-10NS
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Overview

The ATF1502AS-10JU44 is a high-performance, 32-macrocell complex programmable logic device (CPLD) utilizing Atmel's High-density PLD architecture. It provides 32 I/O pins in a 44-pin PLCC package and operates on a standard 5V supply, making it an ideal choice for legacy system support and logic consolidation in 5V environments.

Why Choose This Part

This CPLD features In-System Programming (ISP) via JTAG, allowing for field updates and simplified prototyping with a minimum of 10,000 program/erase cycles. Its 5V operation eliminates the need for level shifters in older industrial and embedded designs while maintaining a predictable 10ns timing performance.

Applications

Glue Logic Consolidation
Replacing multiple 74-series discrete logic ICs to reduce PCB footprint and complexity.
Legacy 5V Bus Interfacing
Acting as a bridge or controller for 5V subsystems where modern 3.3V or lower FPGAs are incompatible.
Address Decoding
Implementing high-speed memory and peripheral address mapping for 8-bit or 16-bit microcontrollers.
Custom Timing Generators
Creating precise pulse-width modulation or clock division signals with a 10ns propagation delay.

Key Specifications

Mounting Type Surface Mount
Number of I/O 32
Package / Case 44-LCC (J-Lead)
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-PLCC (16.6x16.6)
Voltage Supply - Internal 4.5V ~ 5.5V

Getting Started

Development for this device is typically performed using Microchip WinCUPL or ProChip Designer software. Hardware programming is achieved through the JTAG interface using a compatible programmer such as the ATDH1150USB or similar ISP tools. Ensure the 5V supply remains within the 4.75V to 5.25V range for stable operation.

ATF1502AS-10 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Stock
ATF1502AS-10JU44 (this part) LCC-44 635
ATF1502AS-10AU44 TQFP-44 1,723
Also available as: ATF1502AS-10SU

Also Consider

ATF1504AS-10JU44 MCHPMicrochip Technology - Offers 64 macrocells in the same 44-pin PLCC package for designs requiring more logic density.