ATF1504ASL-25AI100

Overview

The ATF1504ASL-25AI100 is a high-performance, electrically-erasable Complex Programmable Logic Device (CPLD) manufactured by Microchip Technology. It features 64 macrocells with up to 40 product terms per macrocell and supports 100 I/O pins in a PQFP package. The device operates at a maximum pin-to-pin delay of 25 ns and a registered frequency up to 60 MHz. It utilizes EEPROM technology for reprogramming, offering In-System Programmability (ISP) via JTAG. The component supports both 3.3V and 5.0V I/O levels and functions within an industrial temperature range of -40°C to +85°C.

Feature Summary

• 64 Macrocells with expandable logic structure supporting up to 40 product terms per macrocell
• In-System Programmability (ISP) via standard 4-pin JTAG interface compliant with IEEE Std. 1149.1
• Industrial temperature range operation (-40°C to +85°C) with 10,000 program/erase cycles
• Advanced power management including automatic standby mode and pin-controlled power-down capability

Applications

• Complex logic integration replacing TTL, SSI, MSI, LSI, and classic PLDs
• PCI-compliant interface designs requiring high current drivers
• Systems requiring field-upprogrammable logic via JTAG boundary-scan testing
• State machine initialization and control applications utilizing power-up reset features

Procurement Notes

Verify the specific suffix 'I' corresponds to the industrial temperature grade (-40°C to +85°C) and 'A' denotes the 100-lead PQFP package configuration. Confirm that the 'L' variant indicates low-power characteristics if applicable to the specific revision. Ensure design files account for the 25 ns propagation delay specifications when integrating into high-speed circuits.

Selection Notes

Select this model for applications requiring 100 I/O pins and industrial temperature stability. The 25 ns speed grade suits systems operating below 60 MHz. Consider the 3.3V or 5.0V I/O compatibility based on system voltage requirements. Verify that the design compiler supports the enhanced routing resources and foldback bus features for optimal logic utilization.

Part Context

This component belongs to the ATF1504AS/L family of CPLDs. It shares core architecture with variants like the ATF1504ASL-20QC100 but differs in package type and speed grade. The 'L' suffix typically denotes low-power enhancements, while the '100' indicates the 100-lead PQFP form factor. It serves as a drop-in replacement for older PLD technologies in complex digital logic designs.

Replacement Considerations

Direct substitutes include other ATF1504ASL variants with compatible packages and speed grades, such as ATF1504ASL-20QC100. Verify pinout compatibility and electrical parameters before substitution. Ensure the replacement part supports the required ISP functionality and temperature range.