ATF1508ASVL-20QC100

Complex Programmable Logic Devices Overview

The ATF1508ASVL-20QC100 is a high-performance, electrically-erasable complex programmable logic device (CPLD) from Microchip Technology. It features 128 macrocells with up to 40 product terms per macrocell via expandable logic chains. The device operates within a 3.0V to 3.6V supply range and supports In-System Programmability (ISP) via JTAG. Key electrical parameters include a maximum pin-to-pin propagation delay of 20 ns, a maximum internal clock frequency of 83.3 MHz, and an operating temperature range of -40°C to +85°C. It is housed in a 100-lead PQFP package.

Complex Programmable Logic Devices Feature Summary

• 128 Macrocells with flexible D/T/Latch configurable flip-flops and up to 40 expandable product terms
• In-System Programmability (ISP) using standard 4-pin JTAG interface (IEEE Std. 1149.1)
• Advanced power management including automatic 5 µA standby mode for 'L' version and pin-controlled power-down
• Programmable output slew rate, open collector option, and pin-keeper inputs to reduce noise and power consumption

Complex Programmable Logic Devices Applications

• Complex logic integration replacing multiple TTL/SSI/MSI components
• High-speed digital signal processing requiring registered operation up to 77 MHz
• PCI-compliant system interfaces
• Boundary-scan testing and design verification using IEEE 1149.1 standards

Complex Programmable Logic Devices Procurement Notes

Verify the specific suffix 'QC100' against official Microchip documentation to confirm the exact package type (PQFP-100), temperature grade (Industrial), and speed grade (-20). Ensure compatibility with 3.3V I/O levels as this variant belongs to the ASVL series. Confirm end-of-life status if applicable, as older PLD families may have limited availability or obsolescence notices.

Complex Programmable Logic Devices Selection Notes

Select this component when designing systems requiring 128 macrocells with 3.3V operation and industrial temperature ratings. Compare against the non-'L' variants (ATF1508AS-20QC100) if lower standby current is not required, noting that the 'L' version offers reduced power consumption. Ensure the design compiler supports the enhanced routing resources and buried feedback features unique to the ASV family.

Complex Programmable Logic Devices Part Context

This part belongs to the ATF1508ASV(L) family of high-density EEPLDs. It shares architectural similarities with the ATF1508AS series but differs in operating voltage (3.3V vs 5V) and power characteristics. The 'L' suffix denotes low-power features, while 'V' indicates the 3.3V core voltage. It is distinct from the ATF1508AS-15QC100 which operates at 5V and has a faster 15 ns delay.

Complex Programmable Logic Devices Replacement Considerations

Direct replacements must match the 3.3V operating voltage and 100-lead PQFP package. Consider the ATF1508ASVL-15QC100 for faster performance (15 ns delay) if timing constraints allow. Verify that any substitute maintains JTAG ISP compatibility and similar macrocell architecture for pin-compatible design migration.