| 摘要 |
<p>Pullup and/or pulldown transistors are electrically connected to the output of MTCMOS logic gates. The use of a pullup transistor pulls up the output to a known, non-floating voltage level when the circuit enters a sleep mode (e.g. the high voltage threshold headswitch and/or footswitch are de-asserted) eliminating crowbar current from being drawn by connected circuits having neither footswitches nor headswitches. Likewise, when a pulldown transistor is electrically connected to the output of the MTCMOS logic gates, the output is pulled down to ground, or other reference level, when the circuit is in a sleep mode. As a result of the addition of a pullup or pulldown transistor on the output of the logic gates, the output is pulled to a known, non-floating voltage level, and the drawing of crowbar current from components that are electrically connected to the output of the logic gates is prevented.</p> |
