SEMICONDUCTOR INTEGRATED CIRCUIT

摘要

An input buffer chooses, in accordance with first control clocks, to output an input data signal or output a high-impedance signal. A master flip-flop chooses, in accordance with second control clocks, to output a data signal received from the input buffer or retain a currently output data signal. A master-slave switch chooses, in accordance with the second control clocks, to output a high-impedance signal or output a data signal received from the master flip-flop. A slave flip-flop chooses, in accordance with the second control clocks, to retain a currently output data signal or output a data signal received from the master-slave switch. A clock buffer inputs the second control clocks, and generates and outputs the first control clocks.

主权项

1. A semiconductor integrated circuit configured to drive a liquid crystal display (LCD), comprising:
an input buffer configured to choose, in accordance with a first control clock, to output an input data signal or output a high-impedance signal; a master flip-flop configured to choose, in accordance with a second control clock, to output a data signal received from the input buffer or retain a currently output data signal; a master-slave switch configured to choose, in accordance with the second control clock, to output a high-impedance signal or output a data signal received from the master flip-flop; a slave flip-flop that chooses, in accordance with the second control clock, to retain a currently output data signal or output a data signal received from the master-slave switch; a first clock buffer configured to receive an external clock and output the second control clock; and a second clock buffer configured to receive the second control clock, retard rising and/or falling edges of the second control clock, and output the first control clock, wherein the input buffer does not receive the second control clock, wherein each of the master flip-flop, master-slave switch, and slave flip-flop does not receive the first control clock.