Data input buffer in semiconductor device
US7317338B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 15, 2005 |
| Grant date | Jan 8, 2008 |
| Priority date | — |
| Expiry date | Feb 14, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/0016
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention provides an input buffer for use in a semiconductor device reducing a current consumption and maintaining a reliable operation speed by detecting a level of the reference voltage. The input buffer includes a comparator, having a first biasing device controlled by a buffer enable signal, for sensing a logic level of an input data by comparing voltage levels of a reference voltage and the input data, a reference voltage detector for detecting the level of the reference voltage, and a second biasing device controlled by an output signal from the reference voltage detector and parallel connected to the first biasing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.