Fast 3-state booster-circuit
US5708387A · kind A · utility
34Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1995 |
| Grant date | Jan 13, 1998 |
| Priority date | — |
| Expiry date | Nov 17, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/07
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A voltage booster circuit includes a driver circuit (117) for generating a 3-state output for driving wordlines via row decoder circuits in an array of flash EEPROM memory cells during read and programming modes of operation. The driver circuit effectively disconnects a large booster capacitor (115) in order to allow a small charge pump (114) to further pump up the wordline voltage during programming. As a result, the booster pump has improved efficiency since there is achieved a significant reduction in power consumption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.