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.
   
• 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 devices are available in Pb−free package(s). Specifications herein
    apply to both standard and Pb−free devices. Please see our website at
    www.onsemi.com for specific Pb−free orderable part numbers, or
    contact your local ON Semiconductor sales office or representative.