Driver Transistor Is Also Called Pull Up. The transistor version is called an open collector while the fet version is called an open drain. When used with a switch or cable that could be disconnected it is obvious to use a pull down or pull up resistor.
The pci local bus provides pull up resistors but they would require several clock cycles to pull a signal high given the bus s large distributed capacitance. However a pull up or pull down should be considered. When used with a switch or cable that could be disconnected it is obvious to use a pull down or pull up resistor.
The pci local bus provides pull up resistors but they would require several clock cycles to pull a signal high given the bus s large distributed capacitance.
Similarly for input high nmos is on pmos is off. The output is shorted to ground via nmos. Each transistor functions as a tri state inverter together making up a in this case 3 input nor gate. Hence the output voltage is same as source voltage.
