Switchable power domains for 1.2v and 3.3v pad voltages
US7098692B2 · kind B2 · utility
17Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2005 |
| Grant date | Aug 29, 2006 |
| Priority date | — |
| Expiry date | Mar 11, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/0008
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An integrated circuit includes a core circuit and a buffer circuit. The buffer circuit includes a plurality of input buffers and a plurality of output buffers that service a plurality of voltage domains on a single set of input/output lines. These voltage domains are controllable to service multiple voltage levels, consistent with various interface standards. In one construction, the core circuit operates at 1.2 volts and the buffer circuit supports both a 1.2 volts interface standard and a 3.3 volts interface standard.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.