ATF1500A-10AU

Overview

The ATF1500A-10AU is a high-performance, electrically erasable complex programmable logic device (CPLD) manufactured by Microchip Technology. It features 32 macrocells and up to 36 inputs in a 44-pin TQFP package. The device operates at a maximum frequency of 76.9 MHz with a maximum pin-to-pin delay of 10 ns. It utilizes advanced Flash technology for complete reprogrammability and supports both commercial and industrial temperature ranges.

Feature Summary

• High-density architecture with 32 logic macrocells and fully connected input/feedback logic array
• Advanced Flash technology enabling 100 program/erase cycles and 20-year data retention
• Flexible macrocell design supporting D/T/Latch configurable flip-flops and global/individual register control
• Built-in speed and power management including automatic standby mode and pin-controlled power-down

Applications

• Replacing TTL, SSI, MSI, and classic PLDs in digital logic designs
• Implementing complex state machines requiring fast sequential logic operation
• Creating bus-friendly interfaces with programmable pin-keeper inputs to prevent floating lines

Procurement Notes

Verify the specific ordering code ATF1500A-10AU against current availability as older Green package options may have limited supply. Confirm that the Industrial temperature range (-40°C to +85°C) matches system requirements. Ensure design tools support the ATF1500A series for compatibility with existing third-party fitters and compilers.

Selection Notes

Select this component when a 44-pin CPLD with 32 macrocells is required. The -10 speed grade offers a balance between performance (76.9 MHz max frequency) and power consumption. Consider the ATF1500AL variant if lower standby current (3 mA) is critical, noting it has a slower 20 ns delay. Ensure the TQFP package fits the PCB footprint constraints.

Part Context

This part belongs to the ATF1500A(L) family of high-performance EPLDs. It is backward compatible with ATF1500/L software and hardware. The 'AU' suffix indicates an Industrial temperature range and a Pb/Halide-free/RoHS compliant TQFP package. It serves as a drop-in replacement for many legacy PLD applications while offering reprogrammability.

Replacement Considerations

For faster speed grades, the ATF1502AS is a pin-compatible replacement. For other speed grades, suggested replacements are available in Green packages. Verify pin compatibility and electrical characteristics before substituting.