ATF1500A-10JI

Overview

The ATF1500A-10JI is a high-performance, electrically erasable complex programmable logic device (CPLD) manufactured by Microchip Technology. It features 32 macrocells and supports up to 36 inputs with a maximum pin-to-pin delay of 10 ns. The device operates at frequencies up to 76.9 MHz with external feedback and is housed in a 44-lead Plastic J-leaded Chip Carrier (PLCC) package. Designed for industrial temperature ranges (-40°C to +85°C), it utilizes advanced Flash technology for complete reprogrammability and includes flexible logic macrocells with configurable flip-flops.

Feature Summary

• High-density architecture with 32 logic macrocells and fully connected global/regional buses
• Maximum pin-to-pin propagation delay of 10 ns with registered operation up to 76.9 MHz
• Flexible macrocell design supporting D/T/Latch configurable flip-flops and individual output enable control
• Advanced power management including automatic standby mode and pin-controlled power-down capability

Applications

• Integration of TTL, SSI, MSI, and classic PLD logic functions
• State machine implementation requiring power-up reset initialization
• System noise reduction through programmable output slew rate control
• Designs requiring backward compatibility with ATF1500/L software and hardware

Procurement Notes

Verify the specific ordering suffix against current Microchip documentation to confirm package type and temperature range. The ATF1500A series has been superseded by newer generations; check for active status or last-time-buy dates. Ensure design tools support the legacy ATF1500A architecture if migrating from older designs.

Selection Notes

Select the ATF1500A-10JI when an industrial temperature range (-40°C to +85°C) and 44-pin PLCC package are required. Choose this part over commercial variants if operating conditions exceed 70°C. Consider the ATF1502AS as a pin-compatible replacement for faster speed grades if higher performance is needed.

Part Context

The ATF1500A series represents a generation of high-performance CPLDs built on Flash technology, allowing for unlimited reprogramming cycles. This family bridges the gap between simple PLDs and more complex FPGAs, offering deterministic timing and easy integration into existing systems using standard design flows.

Replacement Considerations

The ATF1502AS is identified as a pin-compatible replacement for fast-speed grade devices within the ATF1500A family.