ATF1504AS-10JC44

Overview

The ATF1504AS-10JC44 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 via expandable logic chains. The device supports In-System Programmability (ISP) via the JTAG interface and offers flexible I/O configurations with 3.3V or 5.0V compatibility. Key electrical parameters include a maximum pin-to-pin delay of 10 ns for the -10 speed grade, registered operation frequencies up to 125 MHz, and EEPROM-based non-volatile storage allowing 10,000 program/erase cycles. It operates within commercial temperature ranges.

Feature Summary

• 64 Macrocells with 5 Product Terms each, expandable to 40 via cascade logic
• In-System Programmability (ISP) using standard 4-pin JTAG interface
• Maximum propagation delay of 10 ns (-10 speed grade)
• EEPROM technology with 10,000 Program/Erase Cycles and 20-year data retention

Applications

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

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package type and temperature range. The 'JC' suffix typically denotes a PLCC-44 package in commercial temperature range, but datasheet cross-referencing is required as suffixes define physical attributes rather than functional changes. Ensure design files account for the specific pinout of the 44-lead PLCC configuration.

Selection Notes

Select the -10 speed grade when a maximum pin-to-pin delay of 10 ns is required. Consider the ATF1504ASL variant if automatic microamp standby mode is needed for low-power applications. Verify that the design utilizes the available global clock pins and output enable signals efficiently, as these are critical for high-speed registered operations up to 125 MHz.

Part Context

This component belongs to the ATF1504AS/L family of high-density CPLDs. It shares architectural similarities with other variants in the series, such as the ATF1504AS-10JC84 (84-pin PLCC) and ATF1504AS-10AU44-T (44-lead TQFP), differing primarily in package footprint and pin count while maintaining identical core logic resources and performance characteristics.

Replacement Considerations

Direct pin-compatible replacements within the same package require matching the speed grade and voltage requirements. Variants like ATF1504AS-7JC44 offer faster speeds (7.5 ns delay). For different packages, logical equivalents must be mapped manually due to pinout differences.