Protection after brown out in a synchronous memory
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United States of America Patent
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Apr 2, 2002
Issued Date -
N/A
app pub date -
May 22, 2001
filing date -
Jul 28, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A synchronous flash memory includes an array of non-volatile memory cells. The memory device has a package configuration that is compatible with an SDRAM. The memory device can detect a brown-out of a supply voltage. The memory device comprises a voltage detection circuit to monitor a supply voltage and provide a signal if the supply voltage drops below a predetermined value. A latch is coupled to the voltage detection circuit and can be programmed to indicate if the supply voltage dropped below the predetermined value. An external controller can read a status of the latch. The memory, therefore, can provide an indication to an external controller that a reset, or initialization, operation is needed.
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