Dual rail drive for distributed logic
US6426647B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 15, 2000 |
| Grant date | Jul 30, 2002 |
| Priority date | — |
| Expiry date | Sep 15, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/0013
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A logic circuit comprises a dual rail drive circuit having a first rail and a second rail. The logic circuit further comprises a logic block having a first input coupled to receive an input signal from the first rail of the dual rail driver, and a second input coupled to receive an input signal from the second rail of the dual rail driver. In one embodiment, the input signal from the first rail of the dual rail driver can swing to a voltage level sufficient to turn on a p-channel transistor, and the input signal from the second rail of the dual rail driver can swing to a voltage level sufficient to turn on an n-channel transistor. For example, for a 0.18 micron process the input signal from the first rail may have a voltage swing from VDD to VDD-400 MV, and the input signal from the second rail may a voltage swing from GROUND to 400 MV.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.