Semiconductor integrated circuit having a built-in data storage circuit for nonvolatile storage of control data
US6577551B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2001 |
| Grant date | Jun 10, 2003 |
| Priority date | — |
| Expiry date | Dec 4, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C17/16
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A semiconductor integrated circuit includes a control data storage circuit (6) having nonvolatile storage devices with programmed control data and a latch circuit for holding data read out from the storage devices, and a read control circuit (7) for controlling read operations of the control data, which are built in a semiconductor chip. The control data storage circuit (6) is divided into groups (1, 2), and the read control circuit (7) generates read control signals for the groups (1, 2) at different timings, using an output of an internal potential detecting circuit 41 as the timing reference, thereby preventing the peak of power consumption from unacceptably rising during reading operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.