| 摘要 |
An output driver is provided for an IC (14, 16 and 18) to drive a data bus (12) connected thereto. The output driver may include a push-pull configuration comprising both a P and N channel transistor (78 and 80, respectively). A switching network of transistors (86, 88, 90, 92 and 94) is included to prevent loading of the output signal, Vout when the power supply voltage, Vcc is inactive. More particularly, the backgate of P channel transistor (78) is coupled to Vout when Vcc is inactive and coupled to Vcc when Vcc is active.
|
