Method and apparatus for controlling the protection mode of flash memory
US5742935A · kind A · utility
10Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1995 |
| Grant date | Apr 21, 1998 |
| Priority date | — |
| Expiry date | Dec 29, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/225
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for protecting data stored in a nonvolatile memory. First, a system to which an interface is coupled asserts a first signal that is one of two voltages. In addition, the system to which the interface is coupled asserts a second signal that is one of two voltages. The interface comprises circuitry that translates these two signals into a third signal that is one of three voltages. This third signal is then passed to and used by the nonvolatile memory to place the memory into one of three different protection modes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.