ATF1504ASV-15JI44

Overview

The ATF1504ASV-15JI44 is a high-performance, electrically-erasable Complex Programmable Logic Device (CPLD) manufactured by Microchip Technology. It features 64 macrocells with up to 68 inputs and I/Os, housed in a 44-lead PLCC package. The device operates within a 3.0V to 3.6V supply range and supports In-System Programmability (ISP) via the JTAG interface. Key electrical specifications include a maximum pin-to-pin delay of 15 ns and registered operation frequencies up to 76.9 MHz. It utilizes robust EEPROM technology offering 10,000 program/erase cycles and 20-year data retention.

Feature Summary

• 64 Macrocells with 5 product terms each, expandable to 40 via cascade logic
• In-System Programmability (ISP) compliant with IEEE Std. 1149.1
• Industrial temperature range (-40°C to +85°C)
• Robust EEPROM technology with 2000V ESD protection

Applications

• Logic integration replacing TTL, SSI, MSI, and classic PLDs
• JTAG boundary-scan testing and design verification
• State machine initialization with power-up reset features

Procurement Notes

Verify component authenticity through authorized Microchip distributors. Confirm package integrity for the 44-lead PLCC form factor. Ensure design files are compatible with ProChip Designer or WinCUPL tools. Check for specific manufacturing lot dates if long-term supply continuity is required for the production cycle.

Selection Notes

Select this model for designs requiring 64 macrocells and 32 user I/O pins in a PLCC package. The -15 speed grade indicates a 15 ns maximum delay suitable for applications running up to 76.9 MHz. Ensure the system voltage remains between 3.0V and 3.6V. Consider the ASVL variant if automatic low-power standby modes are necessary for power-constrained environments.

Part Context

This component belongs to the ATF15xx series of CPLDs, which are designed for high-density logic applications. The 'ASV' suffix denotes the 3.3V standard power version, while 'JI' specifies the 44-lead PLCC package and industrial temperature rating. It serves as a drop-in replacement for older PAL/GAL devices in complex digital logic systems.

Replacement Considerations

Public confirmed substitute part numbers: None identified in verified documentation.