Octal Bus Transceiver And Register With 3-STATE Outputs

These devices 74F646 consist of Bus Transceiver circuits with 3-STATE, 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. The select controls CAN multiplex stored and real-time (transparent mode) data. The direction control determines which bus will receive data when the enable control G# is Active LOW. In the isolation mode (control G# HIGH), A data may be stored in the B Register and/or B data may be stored in the A Register
By Fairchild Semiconductor
74F646 's Packages74F646 's pdf datasheet

74F646 Pinout, Pinouts
74F646 pinout,Pin out
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