Voltage generating circuit in semiconductor integrated circuit
US5633825A · kind A · utility
24Cited by
6References
34Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 22, 1996 |
| Grant date | May 27, 1997 |
| Priority date | — |
| Expiry date | May 22, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C5/143
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A voltage generating circuit in a semiconductor integrated circuit driven by two sorts of power supply voltages, includes a unit for generating plural sorts of signals; a unit for selecting one of the plural sorts of signals in response to an operation mode of the semiconductor integrated circuit; and a pumping unit for producing either a first predetermined voltage higher than the high power supply voltage among the two sorts of power supply voltages, or a second predetermined voltage lower than the low power supply voltage by a pumping operation based upon the signal selected by the selecting unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.