ATF1502ASV-20JI44

Overview

The ATF1502ASV-20JI44 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 operates within a 3.0V to 3.6V supply range. The device provides a maximum pin-to-pin delay of 20 ns and supports registered operation up to 83.3 MHz. It utilizes advanced EEPROM technology for complete reprogrammability and includes In-System Programmability (ISP) via the JTAG interface. The component is housed in a 44-lead PLCC package and is rated for industrial temperature ranges from -40°C to +85°C.

Feature Summary

• High-density architecture with 32 macrocells and enhanced routing switch matrices
• In-System Programmability (ISP) via standard 4-pin JTAG interface
• Advanced power management including pin-controlled standby mode (0.75 mA)
• Flexible macrocell design with configurable D/T latch flip-flops and global control signals

Applications

• Integration of TTL, SSI, MSI, LSI, and classic PLD logic functions
• Design modifications requiring field updates via software
• PCI-compliant logic applications
• Boundary-scan testing implementations

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and temperature grade. Ensure that the procurement source provides documentation confirming RoHS compliance and lead-free status, as manufacturing processes may evolve. Cross-reference the part number with official Microchip Technology records to validate authenticity and current production status before finalizing orders.

Selection Notes

Select this component when a high-density CPLD with 32 macrocells is required for designs needing 20 ns maximum propagation delay. It is suitable for applications operating at frequencies up to 83.3 MHz. Consider this device if the design requires ISP capabilities via JTAG or needs flexible I/O configuration with programmable output slew rates and open-collector options.

Part Context

This part belongs to the ATF1502ASV series of high-performance EEPROM CPLDs. The 'J' suffix indicates an industrial temperature rating (-40°C to +85°C), while 'I44' denotes the 44-lead PLCC package. The series is designed to replace older discrete logic and classic PLDs, offering higher density and lower power consumption through its advanced EEPROM technology.

Replacement Considerations

For direct replacements, consider the ATF1502ASV-15JI44 for faster performance (15 ns delay) in the same package and temperature range. Verify compatibility with existing PCB footprints and programming interfaces when substituting between different speed grades within the ATF1502ASV family.