Browse Prior Art Database

True or Complement Circuit for Use in Integrated Circuits

IP.com Disclosure Number: IPCOM000051706D
Original Publication Date: 1981-Mar-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 34K

Publishing Venue

IBM

Related People

Kraft, WR: AUTHOR [+2]

Abstract

There are many places where either the true or complement of a signal needs to be loaded into a register. This circuit eliminates multiple logic blocks that take more space and dissipate more power.

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True or Complement Circuit for Use in Integrated Circuits

There are many places where either the true or complement of a signal needs to be loaded into a register. This circuit eliminates multiple logic blocks that take more space and dissipate more power.

The circuit is block diagrammed in Fig. 1 and detailed in Fig. 2. This is a simple transfer gate based circuit that may be used to gate either the true or the complement signal to a high impedance (Z) output load depending on whether Gate A is positive or Gate A is positive. The circuit will provide the true state of input line in A or the complement state.

This replaces three logic blocks. Multiple transfer gates may be dotted to node A.

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