SN54LS323, SN74LS323 8-BIT UNIVERSAL SHIFT/STORAGE REGISTERS

PRODUCTION DATA documents contain information current as of publicationdate. Products conform to specifications per the terms of Texas Instrumentsstandard warranty. Production processing does not necessarily include testingof all parameters

features

• 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

description

These Low-Power Schottky eight-bit universal registers feature multiplexedinputs/outputs to achieve full eight-bit data handling in a single 20-pinpackage. Two function-select inputs and two output-control inputs can be usedto choose the modes of operation listed in the function table. Synchronousparallel loading is accomplished by taking both function-select lines, S0and 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 clockedinto the register. Reading out of the register can be accomplished while theoutputs are enabled in any mode. The clear function is synchronous, and alow level at the clear input clears the register on the next low-to-high transitionof the clock.

View more information about generic part numbers:SN54LS323, SN74LS323

Go to the Engineering Design Center to locate information on other TI Semiconductor devices.

(c) Copyright 1998 Texas Instruments Incorporated. All rights reserved.
Trademarks, Important Notice!