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SN54LS323

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8-Bit Universal Shift/Storage Registers

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Data sheet

SN54LS323

ACTIVE
Data sheet Order now

Product details

Configuration Universal Bits (#) 8 Technology family LS Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Input type Bipolar Output type Push-Pull Clock frequency (MHz) 25 IOL (max) (mA) 24 IOH (max) (mA) -2.6 Supply current (max) (µA) 21000 Features High speed (tpd 10-50ns) Operating temperature range (°C) -55 to 125 Rating Military
Configuration Universal Bits (#) 8 Technology family LS Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Input type Bipolar Output type Push-Pull Clock frequency (MHz) 25 IOL (max) (mA) 24 IOH (max) (mA) -2.6 Supply current (max) (µA) 21000 Features High speed (tpd 10-50ns) Operating temperature range (°C) -55 to 125 Rating Military
CDIP (J) 20 167.464 mm² 24.2 x 6.92 LCCC (FK) 20 79.0321 mm² 8.89 x 8.89
  • Multiplexed Inputs/Outputs Provide Improved Bit Density
  • Four Modes of Operation:
    • 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
  • Typical Power Dissipation … 175 mW
  • Exceptionally Stable Shift (Clock) Frequency … 25 MHz
  • Applications:
    • Stacked or Push-Down Registers,
    • Buffer Storage, and
    • Accumulator Registers
  • SN54LS299 and SN74LS299 Are Similar But Have Direct Overriding Clear

 
  • Multiplexed Inputs/Outputs Provide Improved Bit Density
  • Four Modes of Operation:
    • 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
  • Typical Power Dissipation … 175 mW
  • Exceptionally Stable Shift (Clock) Frequency … 25 MHz
  • Applications:
    • Stacked or Push-Down Registers,
    • Buffer Storage, and
    • Accumulator Registers
  • SN54LS299 and SN74LS299 Are Similar But Have Direct Overriding Clear

 

These Low-Power Schottky 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. The clear function is synchronous, and a low level at the clear input clears the register on the next low-to-high transition of the clock.

 

These Low-Power Schottky 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. The clear function is synchronous, and a low level at the clear input clears the register on the next low-to-high transition of the clock.

 
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Type Title Date
* Data sheet 8-Bit Universal Shift/Storage Registers datasheet 01 Mar 1988

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