Cmos Circuit For Xor Gate. 3 input ex or gate logic symbol. There s a neat xor gate circuit.
Naturally there is another logic circuit satisfying the x or operation. Here is my schematic deisng icon and layout. A cmos or gate is already a combination of a nor gate and an inverter.
So the number of the transistors 6 for the inverters and 5 for the function logic gate.
A cmos nor gate circuit uses four mosfets just like the nand gate except that its transistors are differently arranged. The truth table and logic symbol for 3 input xor gate is given below. Why not do the functions using nand gates. For example in many of the popular logic families such as ttl and traditional cmos there is always a low impedance path between the output and either the supply voltage or the ground.
