ATF1508ASVL-20QI100

Complex Programmable Logic Devices Overview

The ATF1508ASVL-20QI100 is a high-performance, electrically-erasable complex programmable logic device (CPLD) from the ATF1508ASV(L) family. It features 128 macrocells and operates within a 3.0V to 3.6V supply range. The component supports up to 100 pins in a PQFP package, with a maximum pin-to-pin propagation delay of 20 ns and a registered operation frequency up to 66 MHz. Designed for industrial temperature ranges (-40°C to +85°C), it includes In-System Programmability (ISP) via JTAG, enhanced routing resources, and advanced power management features such as automatic standby modes.

Complex Programmable Logic Devices Feature Summary

• 128 Macrocells with flexible D/T/Latch configurable flip-flops and expandable product terms up to 40 per macrocell
• In-System Programmability (ISP) via standard 4-pin JTAG interface compliant with IEEE Std. 1149.1
• Advanced power management including automatic 5 µA standby mode and pin-controlled power-down
• Enhanced routing switch matrices with global bus and foldback regional bus for efficient logic implementation

Complex Programmable Logic Devices Applications

• Complex logic integration replacing TTL, SSI, MSI, LSI, and classic PLDs
• High-speed digital signal processing requiring registered operations up to 66 MHz
• Industrial control systems operating in extended temperature environments
• PCI-compliant interface designs utilizing fast ISP capabilities

Complex Programmable Logic Devices Procurement Notes

Verify the specific ordering suffix 'QI' against official Microchip documentation to confirm package type and temperature grade. Confirm current production status as older ATF1508 variants may be subject to obsolescence notices. Ensure design tools support the ATF1508ASV(L) series for proper compilation and programming.

Complex Programmable Logic Devices Selection Notes

Select this model for applications requiring 3.3V operation with industrial temperature tolerance. Compare the 20 ns delay specification against system timing requirements; faster -15 ns variants are available if higher speed is needed. Consider the 100-pin PQFP package constraints for PCB layout. Verify that the required I/O count fits within the 96 bi-directional I/O and 4 dedicated input limits.

Complex Programmable Logic Devices Part Context

This part belongs to the ATF1508ASV(L) series, which utilizes Atmel's proven electrically-erasable technology. The 'L' suffix typically denotes low-power features, while 'V' indicates voltage range. The ATF1508ASV(L) serves as a high-density alternative to traditional PALs and GALs, offering reprogrammability and security fuse protection.

Complex Programmable Logic Devices Replacement Considerations

Direct replacements include other ATF1508ASV variants with different delay speeds or packages, such as ATF1508ASV-15JU84 (15 ns, PLCC) or ATF1508ASVL-20AU100 (20 ns, TQFP). Cross-family upgrades to newer Microchip CPLDs may require schematic and firmware redesign.