ATF1504AS-10JI44

Overview

The ATF1504AS-10JI44 is a high-performance, electrically-erasable Complex Programmable Logic Device (CPLD) from Microchip Technology. It features 64 macrocells with up to 40 product terms per macrocell and supports 32 I/O pins in a 44-lead TQFP package. The device operates at a maximum pin-to-pin delay of 10 ns and supports registered operation up to 100 MHz. It utilizes In-System Programmability (ISP) via JTAG, offers EEPROM storage with 10,000 program/erase cycles, and functions within a commercial temperature range of 0°C to 70°C.

Feature Summary

• 64 Macrocells with expandable logic capacity up to 40 product terms per macrocell
• In-System Programmability (ISP) via standard 4-pin JTAG interface
• Maximum propagation delay of 10 ns with internal clock frequencies up to 100 MHz
• EEPROM technology providing 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
• Boundary-scan testing and system debugging via IEEE Std. 1149.1
• Field design modifications through software-based ISP updates

Procurement Notes

Verify the specific suffix 'JI44' against official Microchip documentation to confirm the exact package type, speed grade, and temperature range. Ensure that any ordering suffixes do not alter the functional specifications unless explicitly stated in the datasheet. Confirm RoHS compliance status for the specific manufacturing batch.

Selection Notes

Select this component when a high-density CPLD with 64 macrocells and fast 10 ns switching speeds is required. The 44-lead TQFP package is suitable for surface-mount applications needing 32 I/Os. Consider the commercial temperature range (0°C to 70°C) and ensure the design does not require the low-power standby features available in the 'L' variant.

Part Context

This part belongs to the ATF1504AS/L family of high-performance CPLDs. It shares architectural features such as enhanced routing resources, flexible macrocells, and advanced power management with other members of the series, differing primarily in package options, speed grades, and voltage variants.

Replacement Considerations

Direct replacements within the same family include ATF1504AS-15JI44 (15 ns delay) or ATF1504AS-7JI44 (7.5 ns delay). For lower power consumption, the ATF1504ASL-10JI44 variant is available. Verify pin compatibility and electrical characteristics before substitution.