Design of Low Power and High Speed XOR/XNOR Circuit using 90 nm CMOS Technology

In this paper, a high speed and low power XOR-XNOR circuit in hybrid logic style in 90 nm CMOS technology is presented. The proposed XOR-XNOR circuit is symmetrical and has only single pass transistor in all delay paths. The designed circuit provides simultaneous generation of XOR-XNOR logic, balanced output and exhibits full voltage swing in all internal and external nodes. Due to full swing in delay path, the circuit has high portability, high noise robustness, and good driving capabilities. The simulation results show 8%, 5%, and 13.2% improvement in delay, power consumption and Power Delay Product (PDP), respectively. The circuit has used only 10 transistors.