ATF20V8B-10PU

Overview

The ATF20V8B-10PU is a high-performance electrically-erasable programmable logic device (PLD) manufactured by Microchip Technology. It utilizes CMOS Flash memory technology and operates within an industrial temperature range of -40°C to +85°C. The component features a maximum pin-to-pin delay of 10 ns, with a clock-to-output delay of 7 ns. It provides eight configurable macrocells, each allocated eight product terms, supporting registered, complex, or simple modes. The device is housed in a 24-lead Plastic Dual Inline Package (PDIP).

Feature Summary

• High-speed Electrically-Erasable PLD with 10 ns max propagation delay.
• Configurable architecture emulating 24-pin PALs via Registered, Complex, and Simple modes.
• Industrial temperature operation (-40°C to +85°C) with 5V ± 10% supply tolerance.
• Advanced Flash technology offering reprogrammability, 20-year data retention, and 100 erase/write cycles.

Applications

• Direct replacement for obsolete 20R8 family and other 24-pin combinatorial PLDs.
• Implementation of complex logic functions requiring state machine initialization.
• Digital systems requiring low-power options and CMOS/TTL compatible I/O.

Procurement Notes

Verify the package designation 'P' corresponds to the 24-lead PDIP format as specified in the ordering information. Confirm that the '-10' suffix indicates the 10 ns speed grade suitable for industrial applications. Ensure compatibility with standard PLD programmers for programming and erasing operations.

Selection Notes

Select this component when replacing legacy 24-pin PAL devices such as the 20R8 series. Choose the Industrial variant ('I') over Commercial ('C') if ambient temperatures may drop below 0°C. Consider power dissipation requirements, as active current can reach up to 125 mA depending on the specific speed grade and load conditions.

Part Context

This part belongs to the ATF20V8B family of Electrically-Erasable Programmable Logic Devices. It is designed to provide a flexible, reprogrammable alternative to one-time programmable GALs and PALs. The universal architecture allows it to emulate various standard logic devices through software configuration.

Replacement Considerations

Public confirmed substitute part numbers: ATF20V8B-10PC, ATF20V8B-10SC, ATF20V8B-10XI.