ATF1508AS-7AC100

Complex Programmable Logic Devices Overview

The ATF1508AS-7AC100 is a high-performance, high-density Electrically-Erasable Programmable Logic Device (EEPLD) manufactured by Microchip Technology. It features 128 macrocells with up to 100 inputs and supports 7.5 ns maximum pin-to-pin delay. The device operates with VCCINT at 5.0V and VCCIO configurable for 3.3V or 5.0V I/O levels. It includes enhanced routing resources, flexible logic macrocells, and advanced power management features such as automatic standby and pin-controlled power-down modes.

Complex Programmable Logic Devices Feature Summary

• 128 Macrocells with 5 product terms each, expandable to 40 via cascade logic
• 7.5 ns maximum propagation delay with registered operation up to 125 MHz
• In-System Programmability (ISP) via JTAG interface compliant with IEEE Std. 1149.1
• Flexible macrocell architecture supporting D/T/Latch flip-flops and buried feedback

Complex Programmable Logic Devices Applications

• Complex logic integration replacing TTL, SSI, MSI, LSI, and classic PLDs
• PCI-compliant interface designs requiring high current drivers
• Boundary-scan testing implementations using JTAG BST modes
• Low-power applications utilizing automatic standby or pin-controlled power-down modes

Complex Programmable Logic Devices Procurement Notes

Verify the specific ordering suffix 'AC' against official Microchip documentation to confirm package type and temperature range, as datasheet tables list variants like JC84 and AU100. Confirm availability status as older EEPLD families may have limited stock or end-of-life implications. Ensure design tools support the ATF1508AS series for ISP programming and synthesis.

Complex Programmable Logic Devices Selection Notes

Select this component when 128 macrocells and 7.5 ns speed are required in a 100-pin package. Choose the 'AS' variant for standard performance; select 'L' variants if automatic low-power standby is needed. Ensure VCCIO voltage matches the target I/O level (3.3V or 5.0V). Verify that the 100-pin TQFP or PQFP package fits the PCB layout constraints.

Complex Programmable Logic Devices Part Context

The ATF1508AS belongs to the ATF15xxAS family of high-performance EEPLDs from Microchip (formerly Atmel). This family is designed for high-density logic applications with fast in-system programmability. It shares architectural similarities with other ATF1508 variants but differs in speed grades and package options. The 'AS' designation indicates the standard performance version within the enhanced routing feature set.

Complex Programmable Logic Devices Replacement Considerations

Direct replacements include other ATF1508AS variants with different speed grades (e.g., -10, -15) or packages (e.g., -160 pins). For lower power consumption, consider the ATF1508ASL series. Cross-family replacement with ATF16V8 or ATF22V10 requires logic restructuring due to macrocell count differences.