ATF1500A-15JC

Overview

The ATF1500A-15JC is a high-performance, high-density Electrically Erasable Programmable Logic Device (EPLD) manufactured by Microchip Technology. It features 32 logic macrocells and up to 36 inputs within a 44-pin Plastic J-leaded Chip Carrier (PLCC) package. Built on advanced Flash technology, the device supports sequential logic operation at speeds up to 125 MHz with a maximum pin-to-pin delay of 7.5 ns. It operates at a 5V supply voltage and includes flexible macrocell configurations, global/regional busses, and programmable output slew rates for noise reduction.

Feature Summary

• High-density CPLD with 32 macrocells and fully connected input/feedback logic array
• Maximum pin-to-pin delay of 7.5 ns with registered operation up to 125 MHz
• Advanced Flash technology allowing 100 program/erase cycles and 20-year data retention
• Flexible macrocell supporting D/T/Latch configurable flip-flops and individual output enable

Applications

• Integration of TTL, SSI, MSI, and classic PLD logic functions
• Complex state machine implementations requiring fast feedback paths
• System logic replacement in industrial and commercial environments

Procurement Notes

Verify component authenticity through authorized distributors as the ATF1500A series may have limited availability due to its age. Confirm that the specific ordering suffix matches the required package type (44J for PLCC) and temperature range. Check for end-of-life status or obsolescence notices from Microchip Technology before finalizing procurement plans.

Selection Notes

Select the ATF1500A-15JC when a 7.5 ns maximum delay and 32 macrocells are sufficient for the design. Ensure the application requires a 5V supply and 44-pin PLCC footprint. Consider the ATF1502AS as a potential pin-compatible replacement if higher speed grades are needed, though functional differences exist. Verify power consumption requirements against the standby and active current specifications.

Part Context

The ATF1500A series represents Atmel's (now Microchip) high-performance EPLD family utilizing non-volatile Flash memory. The -15JC variant specifically denotes the 15 ns speed grade (7.5 ns max delay) in a Commercial temperature range (0°C to 70°C) housed in a 44-lead PLCC package. It is backward compatible with earlier ATF1500/L software and hardware tools.

Replacement Considerations

The datasheet notes that the ATF1502AS is a pin-compatible replacement for fast-speed grades. For other variants, suggested replacements are available in Green packages. Verify pin compatibility and electrical characteristics before substituting.