SN54LS399, SN74LS399 QUADRUPLE 2-INPUT MULTIPLEXERS WITH STORAGE

SDLS174 - OCTOBER 1976 - REVISED MARCH 1988

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

Single-Rail Outputs on 'LS399
Selects One of Two 4-Bit Data Sources and Stores Data Synchronously withSystem Clock
Applications:
- Dual Source for Operands and Constants in Arithmetic Processor; Can ReleaseProcessor Register Files for Acquiring New Data
- Implement Separate Registers Capable of Parallel Exchange of Contents YetRetain External Load Capability
- Universal Type Register for Implementing Various Shift Patterns: Even HasCompound Left-Right Capabilities

description

This monolithic quadruple two-input multiplexer with storage provides essentiallythe equivalent functional capabilities of two separate MSI functions (SN54LS157/SN74LS157and SN54LS175/SN74LS175) in a single 16-pin package.

When the word-select input is low, word 1 (A1, B1, C1, D1) is applied tothe flip-flops. A high input to word select will cause the selection of word2 (A2, B2, C2, D2). The selected word is clocked to the output terminals onthe positive-going edge of the clock pulse.

Typical power dissipation is 37 milliwatts. The SN54LS399 is characterizedfor operation over the full military range of -55°C to 125°C. TheSN74LS399 is characterized for operation from 0°C to 70°C.

Title: QUADRUPLE 2-INPUT MULTIPLEXERS WITH STORAGE
Product Family: MULTIPLEXERS
Device Functionality: MULTIPLEXER
Orderable Devices: SN54LS399J, SNJ54LS399FK, SNJ54LS399J, SNJ54LS399W, SN74LS399D, SN74LS399DR, SN74LS399N, SN74LS399N3

View the complete PDF datasheet: sdls174.pdf (181 K Bytes) (Requires Acrobat Reader 3.x)

View more information about generic part numbers:SN54LS399, SN74LS399

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