ATF1502AS-10AI44

Overview

The ATF1502AS-10AI44 is a high-performance, electrically-erasable Complex Programmable Logic Device (CPLD) from Microchip Technology. It features 32 macrocells with up to 40 product terms per macrocell via cascade logic expansion. The device operates at a maximum frequency of 125 MHz with a maximum pin-to-pin delay of 10 ns. It utilizes advanced EEPROM technology for reprogramming and supports In-System Programmability (ISP) via the JTAG interface. The component is housed in a 44-lead TQFP package and is designed for commercial temperature ranges.

Feature Summary

• 32 Macrocells with flexible logic structure supporting D/T latch configurable flip-flops
• In-System Programmability (ISP) via standard 4-pin JTAG interface
• Enhanced routing resources with global bus and regional foldback bus
• Advanced power management including automatic standby and pin-controlled power-down modes

Applications

• Logic integration replacing TTL, SSI, MSI, LSI, and classic PLDs
• PCI-compliant interface designs requiring high current drivers
• Boundary-scan testing applications compliant with IEEE Std. 1149.1

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature range. Ensure design files account for the JTAG pin allocation if ISP functionality is required, as these pins may be repurposed for logic if programming is disabled.

Selection Notes

Select this model for designs requiring 32 macrocells and high-speed operation up to 125 MHz. Consider the ATF1502ASL variant if low-power standby modes are critical, as the AS version lacks the automatic 10µA standby feature found in the L series. Confirm thermal requirements align with the commercial temperature range specifications.

Part Context

This component belongs to the ATF1502AS family of CPLDs, which utilize Atmel’s proven electrically-erasable technology. The family offers enhanced routing switch matrices to increase usable gate count and facilitate successful pin-locked design modifications compared to previous generations.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.