UPROM cell for low voltage supply
US5822259A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1997 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Apr 30, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/0433
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention is directed to a redundant UPROM cell incorporating at least one memory element of the EPROM or flash type having a control terminal and a conduction terminal to be biased, a register with inverters connected to the memory element, and MOS transistors connecting the memory element with a reference low voltage power supply. There is provided a precharge network for the conduction terminal of the flash cell and the network incorporates a complementary pair of transistors. The second transistor of the pair is a natural N-channel MOS type. With the UPROM cell is associated a circuit portion for generating a second live output signal to be applied to the control terminal of the second transistor. The circuit portion includes a timing section and a generation section for the second live output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.