Sensing circuit unit for a dynamic circuit
US5559456A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 16, 1993 |
| Grant date | Sep 24, 1996 |
| Priority date | — |
| Expiry date | Aug 16, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/026
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In the present invention, there are disposed (i) a P-channel MOSFET for detecting variations of the voltage level of a data line to supply an electric current, and (ii) a current mirror circuit to which an electric current from the P-channel MOSFET is entered as a reference current and of which output current terminal is connected to the data line. When the data line is lowered in voltage level so that an electric current flows from the P-channel MOSFET to the current mirror circuit, an output current of the current mirror circuit flows to the drain of an N-channel MOSFET, so that the data line is electrically discharged. Thus, there is achieved a sensing circuit unit which is suitably used for a dynamic circuit and which can detect, at a high speed, variations of the voltage level of the data line as precharged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.