ATF1504AS-10JU44

Overview

The ATF1504AS-10JU44 is a high-performance, electrically-erasable Complex Programmable Logic Device (CPLD) from Microchip Technology. It features 64 macrocells with up to 40 product terms per macrocell and supports registered operation up to 125 MHz. The device offers a maximum pin-to-pin delay of 10 ns and operates within a supply voltage range of 3.0V to 3.6V for 3.3V I/O or 4.5V to 5.5V for 5.0V I/O. Packaged in a 44-lead TQFP, it supports In-System Programmability (ISP) via JTAG and includes advanced power management features such as standby modes and programmable pin-keepers.

Feature Summary

• 64 Macrocells with flexible logic structure supporting D/T/Latch configurable flip-flops
• In-System Programmability (ISP) via standard 4-pin JTAG interface
• Maximum propagation delay of 10 ns with registered operation up to 125 MHz
• Advanced power management including pin-controlled standby and reduced-power macrocell options

Applications

• Logic integration replacing TTL, SSI, MSI, LSI, and classic PLDs
• PCI-compliant system designs requiring boundary-scan testing
• High-density digital logic applications needing field reprogrammability

Procurement Notes

Verify the specific speed grade suffix '10' corresponds to the required 10 ns maximum delay specification. Confirm the package type 'J' indicates the 44-lead TQFP form factor. Ensure the design toolchain supports the ATF1504AS(L) series for proper compilation and ISP programming. Check for any recent Product Change Notifications regarding marking or packaging updates.

Selection Notes

Select this component when 64 macrocells are sufficient for the design complexity. Choose the 10 ns speed grade if the application requires higher switching speeds than the -7 ns variant but lower than the -25 ns variant. Ensure the target system voltage matches either the 3.3V or 5.0V I/O configuration. Consider the TQFP package if surface-mount assembly with a 10x10 mm footprint is preferred over PLCC.

Part Context

This part belongs to the ATF1504AS(L) family of CPLDs, which utilizes Atmel's proven electrically-erasable memory technology. The family includes variants with different speed grades (-7, -10, -25) and packages (PLCC, TQFP). The 'AS' designation typically refers to the standard power version, distinct from the 'ASL' low-power version which features automatic microamp standby.

Replacement Considerations

Direct replacements within the same family include ATF1504AS-7JU44 for faster performance or ATF1504AS-25JU44 for cost-sensitive applications with relaxed timing requirements. Cross-package equivalents like ATF1504AS-10JC44 offer the same electrical characteristics in a PLCC-44 package.