Operating voltage adapting buffer
US6111450A · kind A · utility
2Cited by
4References
53Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 1998 |
| Grant date | Aug 29, 2000 |
| Priority date | — |
| Expiry date | Jul 15, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0018
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention provides an integrated circuit having an operating voltage adaptable buffer, capable of operating in different voltage signaling environments, which includes a control circuit that provides a clamping function to the signaling path under prescribed operating conditions and which also reliably biases the p-type transistor substrate voltage of the buffer to the most positive voltage seen by the buffer under all operating conditions occurring on the signaling path, thereby protecting the p-type transistors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.