ATF1502AS-15JC44

Overview

The ATF1502AS-15JC44 is a high-performance, electrically-erasable Complex Programmable Logic Device (CPLD) manufactured by Microchip Technology. It features 32 logic macrocells with up to 36 inputs and utilizes advanced EEPROM technology for complete reprogrammability. The device supports In-System Programmability (ISP) via the JTAG interface and offers enhanced routing resources to increase usable gate count. Key electrical parameters include a maximum pin-to-pin delay of 7.5 ns, registered operation up to 125 MHz, and a 5V power supply range. It is available in commercial and industrial temperature ranges within 44-lead PLCC packages.

Feature Summary

• 32 Macrocells with 5 Product Terms per Macrocell, expandable up to 40 terms
• 7.5 ns Maximum Pin-to-Pin Delay and Registered Operation up to 125 MHz
• In-System Programmability (ISP) via standard 4-pin JTAG interface
• Advanced Power Management including automatic standby and pin-controlled power-down modes

Applications

• Integration of TTL, SSI, MSI, LSI, and classic PLD logic functions
• PCI-compliant interface designs requiring high current drivers
• High-density logic replacement in embedded systems
• Boundary-scan testing applications supporting IEEE Std. 1149.1

Procurement Notes

Verify the specific suffix 'JC44' against official Microchip documentation to confirm package type and temperature grade. Ensure design files account for the 5V operating voltage requirements. Confirm availability status as distribution channels may vary for legacy CPLD families.

Selection Notes

Select this component when 32 macrocells are sufficient for the target logic density. The -15 speed grade provides a 7.5 ns delay suitable for moderate-speed applications. Consider the -L variant if lower power consumption is critical, as it includes automatic standby features. Ensure the PCB layout accommodates the 44-lead PLCC footprint.

Part Context

This part belongs to the ATF1502AS(L) family of high-performance EEPROM-based CPLDs. It shares architectural similarities with other devices in the series but is distinguished by its specific speed grade (-15) and package configuration. The device leverages Atmel's proven electrically-erasable technology for robust field programmability.

Replacement Considerations

Direct replacements within the same family include the ATF1502AS-7JC44 for faster performance or ATF1502AS-25JC44 for slower, potentially lower-power applications. Verify pin compatibility and timing constraints before substituting.