ATF1500A-10AI

Overview

The ATF1500A-10AI is a high-performance, high-density Electrically Erasable Complex Programmable Logic Device (EEPLD) manufactured by Microchip Technology. It features 32 logic macrocells and supports up to 36 inputs with a maximum pin-to-pin delay of 10 ns. The device operates on a 5V supply and utilizes advanced Flash technology for complete reprogrammability. It is available in 44-lead TQFP or PLCC packages and supports registered operation at speeds up to 125 MHz.

Feature Summary

• Advanced Flash Technology: 100% tested, completely reprogrammable with 100 program/erase cycles and 20-year data retention.
• Flexible Macrocell Architecture: Supports D/T/Latch configurable flip-flops with global and individual register control signals.
• Power Management: Includes automatic standby mode and an optional pin-controlled power-down mode reducing current to below 10 mA.
• Pin-Keeper Inputs: Programmable circuits prevent unused pins from floating, eliminating the need for external pull-up resistors.

Applications

• Replacing TTL, SSI, MSI, and classic PLDs in digital logic designs.
• Implementing complex state machines requiring fast sequential logic operation.
• Systems requiring low-power standby modes and programmable output slew rate control.

Procurement Notes

Verify component authenticity through authorized Microchip distributors. Confirm package type (TQFP or PLCC) matches design requirements. Check RoHS compliance status as manufacturing processes may vary. Ensure programming tools support the specific ATF1500A series architecture for reliable configuration.

Selection Notes

Select the ATF1500A-10AI for industrial temperature ranges (-40°C to +85°C). Choose this speed grade when a 10 ns max pin-to-pin delay is sufficient. Consider the ATF1500AL variant if lower standby current (3 mA) is required compared to the standard ATF1500A (70 mA).

Part Context

This part belongs to the ATF1500A family of EEPLDs. It offers backward compatibility with ATF1500/L software and hardware. The device integrates fully connected input and feedback logic arrays, simplifying logic placement and allowing design modifications without pinout changes.

Replacement Considerations

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

FAQ

What is the maximum operating frequency for registered operation?

The ATF1500A supports registered operation at speeds up to 125 MHz.

How does the Pin-Keeper feature work?

Programmable Pin-keeper circuits maintain the last logic level of unused Input and I/O pins, preventing them from floating to intermediate voltage levels which reduces power consumption and system noise.

What is the power consumption in standby mode?

The ATF1500A has an automatic standby mode. In pin-controlled power-down mode, the supply current drops to less than 10 mA.