Latches & Registers | MC74ACT299

8-Input Universal Storage/Shift Register with Common Parallel I/O Pins

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The MC74AC299/74ACT299 is an 8-bit universal shift/storage register with 3-state outputs. Four modes of operation are possible: hold (store), shift left, shift right and load data. The parallel load inputs and flip-flop outputs are multiplexed to reduce the total number of package pins. Additional outputs are provided for flip-flops Q0 , Q7 to allow easy serial cascading. A separate active LOW Master Reset is used to reset the register.

  • Common Parallel I/O for Reduced Pin Count
  • Additional Serial Inputs and Outputs for Expansion
  • Four Operating Modes: Shift Left, Shift Right, Load and Store
  • 3-State Outputs for Bus-Oriented Applications
  • Outputs Source/Sink 24 mA
  • ACT299 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.

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