| 摘要 |
<p>PURPOSE:To stabilize the performance of a circuit, and at the same time, to reduce the number of ground pins for connection of a board by reducing the simultaneous switching noise caused by the bus signal current flowing through the ground layer of a printed circuit board. CONSTITUTION:The return path of a bus signal 4 and a control/interrupt signal 5 is separated by providing a slit 6 on the ground layer of a printed board 1, and corresponding to the above, the bus signal pin and the control-interrupt signal pin of the connector 3, to be connected to the printed board 1, are separated and the simultaneous switching noise, generating on the ground layer by the bus signal, is prevented from spreading to the circuit path other than the bus signal generating circuit.</p> |
