Integrated circuit with separate supply voltage for memory that is different from logic circuit supply voltage
US8098534B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2010 |
| Grant date | Jan 17, 2012 |
| Priority date | — |
| Expiry date | Jun 1, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/018528
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, an integrated circuit includes at least one logic circuit supplied by a first supply voltage and at least one memory circuit coupled to the logic circuit and supplied by a second supply voltage. The memory circuit is configured to be read and written responsive to the logic circuit even if the first supply voltage is less than the second supply voltage during use. In another embodiment, a method includes a logic circuit reading a memory cell, the logic circuit supplied by a first supply voltage; and the memory cell responding to the read using signals that are referenced to the first supply voltage, wherein the memory cell is supplied with a second supply voltage that is greater than the first supply voltage during use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.