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Automatic detect logic of buffer power pin

IP.com Disclosure Number: IPCOM000032058D
Original Publication Date: 2004-Oct-21
Included in the Prior Art Database: 2004-Oct-21

Publishing Venue

IBM

Abstract

Disclosed is a circuit for detecting buffer power pin connection automatically without probing power pin directly. This circuit provides the difference of buffer output voltage between the cases that buffer power is supplied or not. When buffer power is not supplied, it can be detected automatically by checking the difference of buffer output voltage with this disclosed circuit.