Active pull-up circuit
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United States of America Patent
Stats
-
Jan 1, 1985
Grant Date -
N/A
app pub date -
Apr 14, 1983
filing date -
Apr 14, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An active pull-up circuit is provided which is process compensating. The active pull-up circuit contains a voltage reference which drives a source follower. The inverting output of the source follower controls a pull-up device which is in parallel with an active pull-up device. The active pull-up device can be much smaller in size since it is now assisted by the controlled pull-up device. The controlled pull-up device is held off until the active pull-up device pulls up the bus or line connected to the active pull-up circuit to a predetermined voltage level.
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Cited Art Landscape
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