| 摘要 |
PURPOSE: A semiconductor integrated circuit device is provided to improve driving speed and to reduce power consumption by using a current mirror circuit. CONSTITUTION: In a standby state, an output enable signal OE is at a low level, outputs of NAND gates(L21,L22) are at a high level and an output of an inverter(L23) is at a low level. Accordingly, two MOS transistors(MP20,MN20) constituting an output stage(L24) are both in an off-state, and an output DOUT has a high impedance. As to logic gates(L21-L23), it is sufficient to insert a switch and a resistance on the VSS side or the VCC side in accordance with the criteria stated. As to an output stage(L24).
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