ATF1500A-15AI

Overview

The ATF1500A-15AI is a high-performance, high-density complex programmable logic device (CPLD) manufactured by Microchip Technology. It features 32 logic macrocells and up to 36 inputs within a 44-pin package. Built on advanced Flash technology, the device supports registered operation at speeds up to 125 MHz with a maximum pin-to-pin delay of 7.5 ns. It operates within an industrial temperature range of -40°C to +85°C and accepts a 5V power supply. The architecture includes fully connected input and feedback logic arrays, flexible macrocells, and advanced power management features such as automatic standby modes.

Feature Summary

• High-density CPLD with 32 macrocells and 44 pins
• Maximum pin-to-pin delay of 7.5 ns and registered operation up to 125 MHz
• Advanced Flash technology allowing complete reprogrammability and 20-year data retention
• Industrial temperature range (-40°C to +85°C) with 5V supply voltage

Applications

• Integration of TTL, SSI, MSI, and classic PLD logic functions
• Sequential logic design requiring high-speed performance
• Systems utilizing global input and feedback architectures

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and temperature grade. Confirm RoHS compliance status for Green package options if required. Check for obsolescence notices or time-buy dates associated with this part number before finalizing procurement plans.

Selection Notes

Select the ATF1500A-15AI when an industrial temperature range (-40°C to +85°C) is required alongside a 7.5 ns maximum delay. Ensure the design utilizes a 5V supply voltage. Consider the ATF1502AS as a potential replacement for faster speed grades, but verify pin compatibility and functional equivalence for this specific timing requirement.

Part Context

This component belongs to the ATF1500A series of electrically erasable complex programmable logic devices. It offers backward compatibility with ATF1500/L software and hardware. The series provides flexible logic macrocells with D/T/Latch configurable flip-flops and global control signals for efficient logic placement.

Replacement Considerations

The ATF1502AS is identified as a pin-compatible replacement for fast-speed grades within the series. Verify specific timing and functional requirements when substituting.