Nonvolatile memory card with automatic power supply configuration
US5329491A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1993 |
| Grant date | Jul 12, 1994 |
| Priority date | — |
| Expiry date | Jun 30, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C5/143
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A nonvolatile memory card includes a power supply input for receiving a device power supply voltage for the memory card and a plurality of memories arranged in an array. Each of the plurality of memories receives the device power supply voltage from the power supply input. Each of the plurality of memories receives a device power supply voltage indication signal that indicates voltage level of the device power supply voltage and configures circuitry within each of the plurality of memories to operate in accordance with the voltage level of the device power supply voltage. A voltage detection circuit is coupled to the power supply input for detecting the voltage level of the device power supply voltage and for generating the device power supply voltage indication signal. A logic is coupled to the voltage detection circuit and each of the plurality of memories for (1) receiving the device power supply voltage indication signal from the voltage detection circuit, (2) applying the device power supply voltage indication signal to each of the plurality of memories such that the circuitry of each of the plurality of memories is configured in accordance with the device power supply voltage…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.