Semiconductor device operating by receiving a plurality of operating voltages
US6366506B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 15, 2000 |
| Grant date | Apr 2, 2002 |
| Priority date | — |
| Expiry date | Aug 15, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C5/147
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A semiconductor device having a first circuit block supplied with a first operating voltage, a second circuit block supplied with a second operating voltage, a voltage generating circuit for generating a third operating voltage in response to the first operating voltage, and a third circuit block supplied with the third operating voltage. Preferably, the third operating voltage is generated such that the first operating voltage is increased to a fourth operating voltage by a voltage-up converter, and then the fourth operating voltage is dropped to the third operating voltage by a voltage down-converter. Hence, a power supply operating internally stably in spite of use of a relatively fluctuating voltage can be provided even in the case where a power-supply voltage is dropped.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.