ATF1508ASL-25AU100

Complex Programmable Logic Devices Overview

The ATF1508ASL-25AU100 is a high-density, electrically-erasable complex programmable logic device (CPLD) from Microchip Technology. It features 128 macrocells with five product terms each, expandable to 40 via cascade logic. The device supports up to 80 I/O pins in a 100-lead TQFP package. Key electrical parameters include a maximum propagation delay of 25 ns and a maximum operating frequency of 33.3 MHz. It operates on a 5 V supply voltage with a range of 4.5 V to 5.5 V. The component supports industrial temperature ranges from -40°C to +85°C and includes JTAG-based in-system programmability.

Complex Programmable Logic Devices Feature Summary

• 128 Macrocells with flexible D/T/Latch flip-flops and global/individual register control
• In-System Programmability (ISP) via 4-pin JTAG interface compliant with IEEE Std. 1149.1
• Enhanced routing resources with global bus and regional foldback bus for efficient logic implementation
• Advanced power management including automatic 10 µA standby mode and pin-controlled power-down

Complex Programmable Logic Devices Applications

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

Complex Programmable Logic Devices Procurement Notes

Verify the specific suffix 'AU100' corresponds to the 100-lead TQFP package and industrial temperature grade (-40°C to +85°C). Confirm RoHS compliance status as indicated in official documentation. Ensure design tools support the ATF1508AS series architecture for proper compilation and fitting.

Complex Programmable Logic Devices Selection Notes

Select this model for applications requiring 128 macrocells and 5V I/O operation. The 'L' suffix indicates low-power standby features. Compare against ATF1508ASVL variants if 3.3V I/O levels are required instead of 5.0V. Consider package availability between TQFP-100 and other options like PLCC or PQFP based on board layout constraints.

Complex Programmable Logic Devices Part Context

This component belongs to the ATF1508AS(L) family of EEPLDs. It shares architectural similarities with other devices in the series, differing primarily in package type and speed grades. The 'S' denotes standard performance, while 'L' adds low-power standby capabilities. It is part of Microchip's programmable logic portfolio designed for high-density logic replacement.

Complex Programmable Logic Devices Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.