ATF1508AS-10AI100

Complex Programmable Logic Devices Overview

The ATF1508AS-10AI100 is a high-performance, high-density electrically-erasable complex programmable logic device (CPLD) manufactured by Microchip Technology. It features 128 macrocells with up to 100 inputs and supports registered operation at frequencies up to 125 MHz. The device utilizes a 100-lead TQFP package and offers a maximum pin-to-pin delay of 10 ns. It operates with VCCINT fixed at 5.0V and VCCIO configurable for 3.3V or 5.0V I/O levels. Key specifications include 10,000 program/erase cycles, 20-year data retention, and support for In-System Programmability (ISP) via JTAG.

Complex Programmable Logic Devices Feature Summary

• 128 Macrocells with flexible D/T/Latch flip-flops and expandable product terms up to 40 per macrocell
• In-System Programmability (ISP) via 4-pin JTAG interface compliant with IEEE Std. 1149.1
• Dual power supply architecture: VCCINT at 5.0V and VCCIO selectable for 3.3V or 5.0V operation
• Advanced power management including automatic standby, pin-controlled power-down mode, and reduced-power bits

Complex Programmable Logic Devices Applications

• Complex logic integration replacing multiple TTL, SSI, MSI, LSI, and classic PLDs
• PCI-compliant interface designs requiring high current drivers
• Systems requiring in-field design modifications via software programming
• Boundary-scan testing applications supporting IEEE 1149.1 standards

Complex Programmable Logic Devices Procurement Notes

Verify the specific ordering suffix 'AI' against official Microchip documentation to confirm temperature range and package details, as datasheets may list generic variants like 'A' or 'I'. Confirm RoHS compliance status for the specific revision. Check for end-of-life notifications or discontinuance notices from the manufacturer before procurement.

Complex Programmable Logic Devices Selection Notes

Select this component when 128 macrocells are required with a 100-pin surface-mount footprint. Ensure the design accommodates the dual power supply requirement, specifically connecting all VCCINT pins to 5.0V while configuring VCCIO for the target I/O voltage level. Consider the 10 ns propagation delay for timing closure in high-speed logic applications.

Complex Programmable Logic Devices Part Context

This part belongs to the ATF1508AS family of Electrically-Erasable PLDs. The family includes variants with different pin counts (84, 100, 160) and speed grades (-7, -10, -15, -20, -25). The 'AS' designation indicates standard performance, while the 'L' variant offers low-power standby modes. The 100-lead TQFP package provides a balance of I/O density and board space efficiency.

Complex Programmable Logic Devices Replacement Considerations

Direct replacements within the same family include ATF1508AS-10AU100 (TQFP-100) or ATF1508AS-10QC100 (PQFP-100), provided the package type matches. Verify that the replacement variant supports the required 3.3V/5.0V I/O flexibility and ISP capabilities.