Data protection circuit
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 7, 1995
Grant Date -
N/A
app pub date -
Mar 23, 1994
filing date -
Mar 29, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A data protection circuit includes an address detection circuit latch circuit and replacing circuit. The address detection circuit,detects that an address signal for designating an address of a semiconductor memory has designated a specified address. The latch circuit latches a detection output of the address detection circuit. The replacing circuit replaces at least one bit of the address signal by readout data of the semiconductor memory in response to a latch output of the latch circuit.
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