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SN74LS299-通用移位/存储寄存器
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TI产品 - SN74LS299介绍

SN74LS299 - 通用移位/存储寄存器

SN74LS299是TI德州仪器公司的一款移位寄存器产品，SN74LS299是通用移位/存储寄存器，本站介绍了SN74LS299的封装应用图解、特点和优点、功能等，并给出了与SN74LS299相关的TI元器件型号供参考。

SN74LS299 - 通用移位/存储寄存器 - 移位寄存器 - 触发器/锁存器/寄存器 - 德州仪器

产品描述

These Schottky TTL eight-bit universal registers feature multiplexed inputs/outputs to achieve full eight-bit data handling in a single 20-pin package. Two function-select inputs and two output-control inputs can be used to choose the modes of operation listed in the function table.

Synchronous parallel loading is accomplished by taking both function-select lines, S0 and S1, high. This places the three-state outputs in a high-impedance state, which permits data that is applied on the input/output lines to be clocked into the register. Reading out of the register can be accomplished while the outputs are enabled in any mode. A direct overriding input is provided to clear the register whether the outputs are enabled or off.

产品特性

  • Multiplexed Inputs/Outputs Provide Improved Bit Density
  • Four Modes of Operations:
    • Hold (Store)
    • Shift Left
    • Shift Right
    • Load Data
  • Operates with Outputs Enabled or at High Z
  • 3-State Outputs Drive Bus Lines Directly
  • Can Be Cascaded for N-Bit Word Lengths
  • SN54LS323 and SN74LS323 Are Similar But Have Synchronous Clear
  • Applications:
    • Stacked or Push-Down Registers Buffer Storage, and Accumulator Registers

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