发明名称 Output circuit of semiconductor device having adjustable driving capability
摘要 In an output circuit of a semiconductor device, an output buffer circuit includes a P-channel MOS transistor and a resistor connected in series between a line of a power supply potential and an output node. Current driving capability of the output buffer circuit is adjusted by making the P-channel MOS transistor nonconductive when a fuse is not blown, and making P-channel MOS transistor conductive when the fuse is blown. Thus, desired circuit characteristics can be obtained. Further, measures against electrostatic discharge can be taken by providing the resistor between a drain of the P-channel MOS transistor and the output node.
申请公布号 US6794909(B1) 申请公布日期 2004.09.21
申请号 US20030644922 申请日期 2003.08.21
申请人 RENESAS TECHNOLOGY CORP. 发明人 URAKAMI AKI;NAKAJIMA MICHIO
分类号 H01L27/04;H01L21/82;H01L21/822;H03K17/12;H03K17/16;H03K17/687;H03K19/003;H03K19/0175;H03K19/0948;(IPC1-7):H03K3/00 主分类号 H01L27/04
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