| 摘要 |
<P>PROBLEM TO BE SOLVED: To stabilize the signal outputted from an I/O buffer in parallel drive configuration, for improved reliability. <P>SOLUTION: An I/O cell 2 comprises a complementary I/O cell which outputs one output signal as a complementary signal consisting of a normal rotation signal and inverted signal, and two I/O cells 2 are connected parallel to each other. Output parts of an inverter 6 which are to be output parts of the two I/O cells 2 are connected by a wiring 17, and output parts of an inverter 7 which are to be output parts of the two I/O cells 2 are connected by a wiring 18. The wiring 17 is so formed as to traverse the two I/O cells 2 on the lower side of the I/O cell 2. The wiring 18 is formed above the wiring 17, to traverse the two I/O cells 2. The wiring 17 and the wiring 18 are so arranged as to be almost identical in length. <P>COPYRIGHT: (C)2012,JPO&INPIT |
