Semiconductor integrated circuit with input/output interface adapted for small-amplitude operation
US5557221A · kind A · utility
66Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1993 |
| Grant date | Sep 17, 1996 |
| Priority date | — |
| Expiry date | Jun 14, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/018585
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A semiconductor integrated circuit includes a switch unit for controlling the supply of a power source voltage to a signal amplification circuit for receiving an input signal, and a control unit for selectively turning ON and OFF the switch unit in accordance with the amplitude or frequency of this input signal. By the constitution, it is possible to provide an input circuit or an output circuit capable of being applied to an input/output interface adapted for a small amplitude operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.