Abstract: In one embodiment, an output driver is disclosed. The output driver has a first driving device (Q1) that has a first terminal coupled to a bus line terminal, and a second driving device (Q2) that has a first terminal coupled to the bus line terminal. The first driving device (Q1) is configured to couple the bus line terminal to a reference voltage when activated by a first control signal, and the second driving device (Q2) is configured to couple the bus line terminal to a first supply voltage (Vcc) when the second driving device (Q2) is activated by a second control signal. The output driver also has a controller configured to activate the second control signal after the first control signal is deactivated. The second control signal remains active for a first fixed period of time.
Type:
Grant
Filed:
January 20, 2009
Date of Patent:
May 24, 2011
Assignee:
XILINX, Inc.
Inventors:
Richard S. Ballantyne, Mark Paluszkiewicz, Henry E. Styles, Ralph D. Wittig