Semiconductor data storage device with means for protecting data

Details Semiconductor data storage device with means for protecting data Semiconductor data storage device with means for protecting data

1993-09-03

1996-11-19

Nguyen, Hoa T.

G06F 1130

Patent

active

055771955

ABSTRACT:
A semiconductor data storage device includes both volatile and non-volatile semiconductor data storage elements and prevents erroneous writing of data and contention of data at the time of connection and disconnection of an external power source. When the external power source is connected to or disconnected from the semiconductor data storage device in accordance with a reset signal of a power control circuit detecting a voltage, a card enable signal line, an output enable signal line, and a write enable signal line are forcibly deactivated for a predetermined period of time by a delay circuit and gate circuits.

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