Semiconductor integrated circuit device having step-down voltage circuit
US6067257A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1999 |
| Grant date | May 23, 2000 |
| Priority date | — |
| Expiry date | Mar 16, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C11/4074
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A semiconductor integrated circuit device is provided with an internal circuit which receives a source voltage supplied from an external terminal and is activated based on a voltage obtained by reducing the source voltage, and an output circuit which outputs a signal to be outputted produced by the internal circuit, through an external terminal in accordance with a timing signal. In the semiconductor integrated circuit device, a level shift circuit converts the signal produced by the internal circuit to a signal level corresponding to the level of the source voltage supplied from the external terminal. The output circuit outputs the level-shifted signal therefrom using a timing signal of a voltage level corresponding to the source voltage supplied from the external terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.