ATF1502ASV-15JC44

Overview

The ATF1502ASV-15JC44 is a high-performance, electrically-erasable Complex Programmable Logic Device (CPLD) from Microchip Technology. It features 32 macrocells with up to 36 inputs and 32 bi-directional I/O pins in a 44-pin TQFP package. The device operates within a 3.0V to 3.6V supply range and delivers a maximum pin-to-pin delay of 15 ns, supporting registered operations up to 77 MHz. Key specifications include 5 product terms per macrocell, expandable to 40 via cascade logic, and enhanced routing resources. It supports In-System Programmability (ISP) via JTAG, offers pin-controlled standby mode with 0.75 mA current draw, and includes advanced power management features such as reduced-power bits and programmable pin-keepers.

Feature Summary

• 32 Macrocells with 5 Product Terms each, expandable to 40 via cascade logic
• 15 ns Maximum Pin-to-Pin Delay and Registered Operation up to 77 MHz
• In-System Programmability (ISP) via IEEE Std. 1149.1 JTAG Interface
• Pin-Controlled Standby Mode with 0.75 mA Current Consumption

Applications

• Logic integration replacing TTL, SSI, MSI, LSI, and classic PLDs
• State machine initialization and control using Power-up Reset feature
• Boundary-scan testing and debugging via JTAG interface
• Low-power applications utilizing pin-keeper inputs and reduced-power macrocells

Procurement Notes

Verify the ordering suffix 'JC44' corresponds to the Industrial temperature range (-40°C to +85°C) and 44-lead TQFP package. Confirm that the 'S' suffix indicates the standard voltage version rather than the low-power 'L' variant. Ensure design tools support the specific EEPROM technology and ISP requirements for this component generation.

Selection Notes

Select this model when a 15 ns speed grade is required for industrial environments. The JC44 designation specifies the 44-pin TQFP package; use AC44 or AI44/JI44 for alternative packages or commercial temperature ranges. Consider the ASVL variant if lower static power consumption is critical, as it offers reduced-power features optimized for energy efficiency compared to the standard ASV series.

Part Context

This component belongs to the ATF1502A family of high-density CPLDs. The 'A' denotes the enhanced architecture with improved routing and flexible macrocells. The 'S' indicates the standard voltage operation, while 'JC' specifies the industrial temperature rating and TQFP packaging. This part replaces older Atmel PLD designs with modern EEPROM technology and JTAG-based programming capabilities.

Replacement Considerations

For lead-free replacements, consider ATF1502ASV-15JU44, which is explicitly noted as lead- and halide-free. For commercial temperature applications, ATF1502ASV-15AC44 is the equivalent standard voltage option. Verify pin compatibility when substituting between TQFP and PLCC packages.