| 摘要 |
PROBLEM TO BE SOLVED: To provide a display driver with built-in RAM permitting to arrange a plurality of three port structured memory cells within an output electrode pitch, and to provide a display unit and electronic equipment using the same. SOLUTION: The memory cell MC includes a flip-flop FF consisting of 1st and 2nd inverters 150, 152. CPU bit line CPU-BL and RGB bit line RGB-BL are connected with a node N0 via N-type MOS transistors 154, 156, respectively. A P-type MOS transistor 158 and an N-type MOS transistor 160 are connected with a node N1. The source terminal of the N-type MOS transistor 160 is connected to the ground potential level; a set signal is supplied to the gate terminal in a pixel unit only for the flip-flop FF corresponding to the pixel for writing and this set signal brings the node 1 into the ground potential level.
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