MC74ACT646

MC74AC646, MC74ACT646 Octal Transceiver/Register with 3-State Outputs (Non-inverting) The MC74AC646/74ACT646 consist 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 (CAB or CBA). The four fundamental data handling functions available are illustrated Figures 1 to 4. Features Independent Registers for A and B Buses Multiplexed Real−Time and Stored Data Transfers Choice of True and Inverting Data Paths 3−State Outputs 300 mil Slim Dual In−Line Package Outputs Source/Sink 24 mA ′ACT646 Has TTL Compatible Inputs These are Pb−Free Devices REAL TIME TRANSFER A‐BUS TO B‐BUS A‐BUS REAL TIME TRANSFER B‐BUS TO A‐BUS A‐BUS REG REG REG REG B‐BUS Figur...