OUTPUT CIRCUIT FOR SEMICONDUCTOR DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an output circuit for a semiconductor device capable of obtaining a desired circuit characteristic and taking a static electricity discharge countermeasure. SOLUTION: An output buffer circuit 4 in the output circuit of the semiconductor device includes a P channel MOS transistor 27.1 and a resistive element 29.1 connected in series between a line of a power supply level VDD and an output node N12. The current drive capability of the output buffer circuit 4 is adjusted by making the P channel MOS transistor 27.1 nonconductive when a fuse 39.1 is not blown and by connecting gates of the P channel MOS transistor 27.1 and a MOS transistor 21 when the fuse 39.1 is blown. Thus, a desired circuit characteristic can be obtained. Further, provision of the resistive element 29.1 between the drain of P channel MOS transistor 27.1 and the output node N12 can take the static electricity discharge countermeasure. COPYRIGHT: (C)2005,JPO&NCIPI