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74AC648 Octal Transceiver/Register with 3-STATE Outputs
November 1988 Revised August 2000
74AC648 Octal Transceiver/Register with 3-STATE Outputs
General Description
The AC648 consists of registered bus transceiver circuits, with outputs, D-type flip-flops and control circuitry providing multiplexed transmission of data directly from the input bus or from the internal storage registers. Data on the A or B bus will be loaded into the respective registers on the LOW-to-HIGH transition of the appropriate clock pin (CPAB or CPBA). The four fundamental data handling functions available are illustrated in Figure 1, Figure 2, Figure 3, and Figure 4.
74AC648 Datasheet
