Cmos Nand Gate Circuit. Static cmos circuit at every point in time except during the switching transients each gate output is connected to either v dd or v ss via a low resistive path the outputs of the gates assume at all times the value of the boolean function implemented by the circuit in contrast a dynamic circuit relies on temporary. Nand gates are basic logic gates and as such they are recognised in ttl and cmos ics.
It is based on cmos logic. A basic cmos structure of any 2 input logic gate can be drawn as follows. The principle of operation of the circuit is exact dual of the cmos two input nor operation.
We need parallel or series connections of nmos and pmos with a nmos source tied directly or indirectly to ground and a pmos source tied directly or indirectly to v dd.
Nand gates are basic logic gates and as such they are recognised in ttl and cmos ics. All inputs and outputs are designed according to the cmos logic voltage level. Diagram of the nand gates in a cmos type 4011 integrated circuit. The cd4011 ic contains four independent nand gates.
