Memory card and control chip capable of supporting various voltage supplies and method of supporting voltages thereof
US7596047B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2006 |
| Grant date | Sep 29, 2009 |
| Priority date | — |
| Expiry date | May 17, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/30
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A memory card and a control chip capable of supporting various voltage supplies and a method of supporting voltages are discussed. The memory card includes a flash memory and a control chip for controlling the flash memory, and the control chip has a voltage regulator, a pad power supplier, a core controller and an output circuit. The voltage regulator transforms an external working voltage into a working voltage. The pad power supplier receives the external working voltage and adjusts a level of the external working voltage to output a pad working voltage according to an operating mode. The core controller receives the working voltage to work and generates a control signal. The output circuit receives the control signal and outputs a memory control signal according to a level of the pad working voltage. The control chip controls a flash memory with the memory control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.