Optimization of circuitry for power and area efficiency by using combination between latch and register

The benefits of level sensitive latch-based circuit have been known for some time. Latches offer improvement in power, area and even speed compared to flip-flops. Therefore this paper describes flip-flops replacement by latches to improve power and area of a circuit. Here the straightforward replacement method is used where a flip-flop is replaced by a latch without changing the functionality of the circuit. The method was implemented in Netlist using the core processor by Opencores, OpenRisc 1200 Hyper Pipelined (ORisc1200), as the test case. Experimental result proves reduction in power consumption as well as circuit area has been achieved.