Semiconductor memory device, semiconductor system and reading method
US9953170B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 11, 2014 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Apr 15, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2135
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention provides a flash memory which may effectively protect information with a high security level. A flash memory includes a setting part. When the setting part is inputted a specific command, the setting part sets up specific address information to a nonvolatile configuration register, and sets up specific data in a hidden storage region. The flash memory also includes: a comparing part, which compares inputted address information and the specific address information during a reading operation; and a control part, which reads specific data set in the storage region and erases a specific address when two address information are consistent, and reads data stored in a memory array according to the inputted address information when two address information are inconsistent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.