Semiconductor integrated circuit
US5764580A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Aug 16, 1996 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Aug 16, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C7/22
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A semiconductor integrated circuit capable of preventing the excessive overdriving of sense amplifiers when the supply voltage fed thereto is raised. The integrated circuit has differential amplifiers for amplifying a potential difference on complementary signal lines, and a control circuit for generating a first driving control signal for supplying the differential amplifiers with a first driving voltage as an overdriving power supply therefor. The control circuit further generates a second driving control signal for supplying the differential amplifiers with a second driving voltage which is activated after the activated first driving control signal is deactivated and which is lower in level than the first driving voltage. The control circuit includes a MOS circuit as a delay circuit composed of MOS transistors for defining a time interval from the time the first driving control signal is activated until the second driving control signal is activated. With this arrangement, the period during which the overdriving voltage is applied is variable in dependence on the level of the supply voltage such that the overdrive period is relatively short if the supply voltage is high and rela…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.