I/O circuit with phase mixer for slew rate control
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United States of America Patent
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May 7, 2013
Grant Date -
Jan 24, 2013
app pub date -
Aug 1, 2012
filing date -
Mar 3, 2008
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An apparatus includes a terminal, a first plurality of driver lines, and a first phase mixer. The driver lines drive the terminal to a first logic state responsive to a first enable signal. The first phase mixer is coupled to a first one of the first plurality of driver lines. The first phase mixer is operable to receive the first enable signal and a first delayed enable signal derived from the first enable signal and generate a first signal on the first driver line having a first configurable delay with respect to the first enable signal by mixing the first enable signal and the first delayed enable signal.
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