OTP sector double protection for a simultaneous operation flash memory
US6662262B1 · kind B1 · utility
34Cited by
4References
25Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 19, 1999 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | Oct 19, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/22
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A simultaneous operation flash memory capable of providing double protection to An OTP sector. The preferred simultaneous operation flash memory comprises an OTP write-protect CAM, which is in a programmed state if the OTP sector is write-protected. In addition, the preferred simultaneous flash memory further includes an OTP sector lock CAM that is electrically connected with the OTP write-protect CAM. The OTP sector lock CAM is used to lock the OTP write-protect CAM in the programmed state, which, in turn, will designate the OTP sector as read only.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.