ATF1508ASVL-20AI100

Complex Programmable Logic Devices Overview

The ATF1508ASVL-20AI100 is a high-density, 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 delay of 20 ns, a maximum operating frequency of 83.3 MHz, and an industrial temperature range of -40°C to +85°C. It is housed in a 100-lead TQFP 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
• Enhanced routing resources with global bus, regional foldback bus, and cascade logic for high fan-in functions

Complex Programmable Logic Devices Applications

• Complex logic integration replacing multiple TTL/SSI/MSI/LSI components
• State machine implementation requiring robust power-up reset initialization
• High-speed digital control systems operating up to 83.3 MHz
• Boundary-scan testing and design verification using IEEE 1149.1 standards

Complex Programmable Logic Devices Procurement Notes

Verify the specific suffix '20AI100' against official Microchip documentation to confirm package type and temperature grade. The '20' indicates 20 ns speed grade, while 'A' typically denotes industrial temperature range. Confirm RoHS compliance status as 'Green' packages are available. Check current production status as older CPLD families may be subject to obsolescence notices.

Complex Programmable Logic Devices Selection Notes

Select this component when 128 macrocells are sufficient for the design logic density. Ensure the system voltage aligns with the 3.0V–3.6V VCC range. For designs requiring low power during idle states, utilize the 'L' variant's automatic standby feature. Verify that the 100-lead TQFP package fits the PCB footprint constraints and thermal requirements for the -40°C to +85°C operating environment.

Complex Programmable Logic Devices Part Context

This part belongs to the ATF1508ASV(L) family of EEPLDs. It shares architectural similarities with other variants like ATF1508AS-15QC100 but differs in speed grade (20 ns vs 15 ns), voltage range (3.3V vs 5V), and package type. The 'L' suffix specifically enables advanced low-power features such as automatic standby current reduction.

Complex Programmable Logic Devices Replacement Considerations

Direct replacements must match the 128 macrocell count, 100-lead TQFP package, and 3.3V operation. Variants within the same family, such as ATF1508ASVL-15AU100 (15 ns speed), offer faster performance but require verification of timing constraints. Cross-family replacements like ATF1516 series offer higher density but different pinouts.