IC card and a method for parallel processing flash memories

Details IC card and a method for parallel processing flash memories IC card and a method for parallel processing flash memories

1995-06-06

1996-10-01

Nelms, David C.

Static information storage and retrieval

Floating gate

Data security

36518533, 365201, 371 371, 371 404, G11C 1134, G11C 2900, H03M 1300

Patent

active

055616283

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.

REFERENCES:
patent: 4924465 (1990-05-01), Matsubara et al.
patent: 4930129 (1990-05-01), Takahira

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