| 摘要 |
PURPOSE:To control surely the transfer of an input data without providing a control terminal, by providing a control part in a processing circuit. CONSTITUTION:Four-bit data inputted from a data input terminal 1 is taken into an address latch 3 at one edge of the input signal of an input control terminal 2, and a data latch 5 of addresses A1-A8 is selected clearly by a data latch group selector 4. A next-stage circuit 6 connected to the data latch 5 is provided, and a specific one-bit latch synchronous with the data latch 3 of a specific address is provided. This specific one-bit latch is used as an internal control part 9 to control the data transfer from the data latch 5 to the next-stage circuit 6. |
