Semiconductor integrated circuit having input circuit
US6066973A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1998 |
| Grant date | May 23, 2000 |
| Priority date | — |
| Expiry date | Mar 31, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/00361
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An input circuit is made up of an external signal input portion which inputs an external signal, a voltage level converting circuit which has an input terminal for inputting a signal from the external signal input circuit and which has an output terminal for outputng the signal to the internal circuit after a voltage level was converted, a first power supply terminal which has a first potential for driving the voltage level converting circuit, a second power supply terminal which has a second potential for driving the voltage level converting circuit, and a noise control portion which couples to the input terminal of the voltage level converting circuit, which controls a noise from the first power supply terminal and/or the second power supply terminal, and which has a first capacitor. Accordingly, the input circuit could be applied the stable signal to the internal circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.