Detecting the status of an electrical fuse
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United States of America Patent
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Mar 28, 2006
Issued Date -
N/A
app pub date -
Mar 26, 2004
filing date -
Mar 26, 2004
priority date (Note) -
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Abstract
A fuse detection circuit has; a fuse (102) under detection to produce a first voltage in the first arm in response to a read signal; a reference fuse (108) to produce a second voltage in response to the read signal; a sensing circuit (124) to sense the first voltage and the second voltage as status value data of the fuse under detection; a latch circuit (136) to keep the data in the sensing circuit; and a timing control circuit (138) to turn off the fuse bridge circuit independently of the read signal.
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