ATF1504ASL-20QC100

Overview

The ATF1504ASL-20QC100 is a high-density, electrically-erasable Complex Programmable Logic Device (CPLD) manufactured by Microchip Technology. It features 64 macrocells with up to 68 I/O pins and utilizes EEPROM technology for reprogrammability. The device operates at a maximum frequency of 83.3 MHz with a maximum propagation delay of 20 ns. It supports In-System Programmability (ISP) via JTAG and offers flexible logic macrocells with D/T/Latch configurable flip-flops. Operating within the commercial temperature range of 0°C to +70°C, it uses a PQFP-100 package.

Feature Summary

• 64 Macrocells with 5 product terms each, expandable to 40 via cascade logic
• In-System Programmability (ISP) via standard 4-pin JTAG interface
• EEPROM storage allowing 10,000 program/erase cycles and 20-year data retention
• Flexible macrocell architecture with global clock, reset, and output enable signals

Applications

• Logic integration replacing TTL, SSI, MSI, LSI, and classic PLDs
• PCI-compliant interface designs requiring high current drivers
• State machine initialization using power-up reset features
• Boundary-scan testing compliant with IEEE Std. 1149.1

Procurement Notes

Verify component authenticity through authorized Microchip distributors. Confirm RoHS compliance status as indicated in specific datasheets. Check for end-of-life notifications or product change notices affecting availability. Ensure packaging matches the PQFP-100 specification for physical compatibility.

Selection Notes

Select this model for applications requiring 64 macrocells and 100-pin surface mount packaging. Choose the -20 speed grade for designs needing a maximum propagation delay of 20 ns. Ensure the design environment supports ISP programming via JTAG. Verify voltage requirements match the 5V supply specifications for commercial temperature operation.

Part Context

This part belongs to the ATF1504AS/L series of CPLDs. It shares architectural features with other variants in the family, such as different pin counts and speed grades. The 'L' suffix typically denotes low-power standby modes, while 'QC100' specifies the PQFP-100 package and industrial/commercial temperature rating.

Replacement Considerations

Direct replacements include other ATF1504AS variants with compatible packages like ATF1504AS-10JC84 (PLCC-84). Cross-model substitution requires verifying pinout compatibility and electrical parameters. Consider ATF1508AS series for higher density if pin count allows.