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Part Number and Test Verification Scheme

IP.com Disclosure Number: IPCOM000055800D
Original Publication Date: 1980-Sep-01
Included in the Prior Art Database: 2005-Feb-13

Publishing Venue

IBM

Abstract

One method to verify that a chip is a specific number is to hardwire two pins together. One pin is required for chip testing anyway so then each separate part number would require one extra pin on the chip, and this pin would be different for each part number.