Semiconductor non-volatile latch device including embedded non-volatile elements
US5892712A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1997 |
| Grant date | Apr 6, 1999 |
| Priority date | — |
| Expiry date | Apr 29, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C14/0063
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A bistable non-volatile latch circuit adapted to store a non-volatile binary data state during a program operation, and to assume one of two stable states in response to a power up operation that correspond uniquely to the data state has first and second circuit sections. The first circuit section has a first non-volatile current path with means to set the impedance of the first current path in a non-volatile manner. A first end of the first current path is connected to provide a logic output signal, which represents a binary logic state depending on a voltage applied to the a first signal input node. The set/reset signal to the first current path varies between at least the power source voltage and a program voltage that is negative with respect to the power source voltage. A second circuit section generates an output voltage on a second output node that represents a binary logic state opposite from the output states of the first circuit section. Means are provided for connecting the first circuit section and the second circuit section into a bistable configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.