IC card and a method for parallel processing flash memories
US5561628A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 1995 |
| Grant date | Oct 1, 1996 |
| Priority date | — |
| Expiry date | Jun 6, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C29/26
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An IC card according to the present invention includes a plurality of flash memories sharing data buses and address buses corresponding to addresses except for a decode address, and a card interface for receiving an external address signal, an external data signal, and an external control signal and for controlling access to and from the external signals. The card interface includes a test circuit for applying a signal potential to a plurality of control signal output terminals for placing the plurality of flash memories in a write enabled state, the signal potential being applied by using an active signal, and the IC card also includes a signal input pad for inputting the active signal to the test circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.