| 摘要 |
PCT No. PCT/JP91/00816 Sec. 371 Date Feb. 12, 1992 Sec. 102(e) Date Feb. 12, 1992 PCT Filed Jun. 19, 1991 PCT Pub. No. WO91/20130 PCT Pub. Date Dec. 26, 1991.An output buffer circuit for use with a power source having first and second power source terminals includes an output terminal, a first transistor connected between the first power source terminal and the output terminal and a second transistor connected between the second power source terminal and the output terminal. A control signal which shifts gradually from the potential at the second power source terminal to the potential at the first power source terminal is applied to the gate of the second transistor. As a consequence, undesirable noises are well suppressed without any substantial degradation in high speed operation.
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