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74F646 • 74F646B • 74F648 Octal Transceiver/Register with 3-STATE Outputs
March 1988 Revised August 1999
74F646 • 74F646B • 74F648 Octal Transceiver/Register with 3-STATE Outputs
General Description
These devices consist of bus transceiver circuits with 3STATE, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data directly from the input bus or from the internal registers. Data on the A or B bus will be clocked into the registers as the appropriate clock pin goes to a high logic level. Control G and direction pins are provided to control the transceiver function. In the transceiver mode, data present at the high impedance port may be stored in either the A or the B register or in both.
74F646 Datasheet
