ATF20V8B-10SC

Overview

The ATF20V8B-10SC is a high-performance electrically-erasable programmable logic device (EE PLD) manufactured by Microchip Technology. It utilizes advanced Flash memory technology and features eight macrocells with dedicated product terms. The component operates at a maximum pin-to-pin delay of 10 ns and supports a supply voltage range of 4.75 V to 5.25 V for commercial applications. It is housed in a 24-lead Plastic Gull-wing Small Outline (SOIC) package, providing a compact surface-mount solution for digital logic implementation.

Feature Summary

• Eight macrocells with up to eight product terms per output
• Reprogrammable via standard PLD programmers using Flash memory
• CMOS and TTL compatible inputs and outputs with internal pull-ups
• Supports Registered, Complex, and Simple PAL emulation modes

Applications

• Replacement for obsolete 24-pin PAL devices such as the 20R8 family
• Implementation of complex combinational and registered logic functions
• State machine design requiring power-up reset initialization

Procurement Notes

Verify that the specific ordering suffix 'SC' corresponds to the 24-lead SOIC package variant within the manufacturer's current documentation. Confirm the temperature grade matches the intended operational environment, as commercial and industrial variants share similar electrical characteristics but differ in operating ranges. Ensure programming hardware compatibility with Atmel/Microchip EE PLD standards.

Selection Notes

Select this component when an industry-standard 24-pin PAL footprint is required with reprogrammability. The -10 speed grade offers a balance between switching speed and power consumption compared to faster or slower alternatives. Consider the ATF20V8BQ or BQL variants if lower standby or active power dissipation is critical for the system design.

Part Context

This device belongs to the ATF20V8B family of Electrically-Erasable Programmable Logic Devices. The family includes variations with different speed grades (-7, -10, -15, -25), power options (standard, Q, QL), and package types (PLCC, PDIP, SOIC, TSSOP). The ATF20V8B-10SC specifically denotes the 10 ns speed grade in the SOIC package.

Replacement Considerations

Direct replacement for 20R8, 20RP8, 20R6, 20RP6, 20R4, and 20RP4 registered PALs. Also replaces 20L8, 20H8, 20P8 combinatorial PALs, and simple PALs like 14L8, 14H8, 14P8, 16L6, 18H6, 16P6, 18L4, 18H4, 18P4, 20L2, 20H2, and 20P2.