D FLIP-FLOP

摘要

PURPOSE: A D flip-flop is provided to reduce an entire layout area by decreasing the number of gates. CONSTITUTION: The D flip flop comprises: a master terminal latching an outer input; a slab terminal input and latching the latched data to the master terminal; the first transmitting circuit receiving the outer data by responding the first and the second clock signal of a complementary level; a first latch circuit(10) preserving the latched data to the master terminal by responding the clock signal; and a second latch circuit(20) preserving the outer input data by connecting between the first transmitting circuit and the latch circuit.