| 摘要 |
PURPOSE: To obtain a delay circuit the delay time of which varies depending upon received data by incorporating a plurality of switching means in the circuit and making voltage dropping rates at nodes different from each other. CONSTITUTION: Each of a plurality of switching means is connected to a node so that the means can receive one of a plurality of different input signals and the voltage at the node drops from a prescribed threshold voltage so that an outputting means can generate a second output signal when one of the switching means is conducted by the corresponding input signal. In addition, at least one of the switching means is constructed so that the voltage dropping rate at the corresponding node can become different from that at the node connected to one of the other switching means when the switching means is conducted. For example, a delay circuit 1 incorporates a 16-bit LSSD register 2, OR gates 4, 6, 8, 10, and 12, and a drive-out circuit 13. Therefore, the delay characteristic of the delay circuit 1 can be set accurately. |
