PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SN54LS21JMicrocircuit,digital

Texas Instruments Incorporated · NSN 5962-01-047-8578 · FSC 5962 · No Item Name Available
Verified by PartsTable
NSN 5962-01-047-8578 — this item is cataloged by the U.S. Government under National Stock Number 5962-01-047-8578. Primary manufacturer part number: SN54LS21J.
Features
  • Microcircuit,digital — FSC 5962
  • Output Logic Form: COMPLEMENTARY-LOGIC
  • Inclosure Configuration: DUAL-IN-LINE
  • Inclosure Material: CERAMIC
  • Operating Temp Range: -55.0 TO 125.0 CELSIUS DEGC
  • Features Provided: HERMETICALLY SEALED
  • Input Circuit Pattern: DUAL 3 INPUT
  • Body Length: 0.755 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Microcircuit,digital, cataloged under National Stock Number 5962-01-047-8578, is classified within Federal Supply Class 5962 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Texas Instruments Incorporated. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5962-01-047-8578
Primary Part NumberSN54LS21J
Item NameMicrocircuit,digital
FSC / FSG5962 / 59 — No Item Name Available
ManufacturerTexas Instruments Incorporated
StatusACTIVE
Output Logic FormCOMPLEMENTARY-LOGIC
Inclosure ConfigurationDUAL-IN-LINE
Inclosure MaterialCERAMIC
Operating Temp Range-55.0 TO 125.0 CELSIUS DEGC
Features ProvidedHERMETICALLY SEALED
Input Circuit PatternDUAL 3 INPUT
Body Length0.755 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN
Body Width0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5962-01-034-9830 INTERCHANGEABLE
Microcircuit,digital
Cross-Reference Index
Part NumberManufacturer
SN54LS21J Adelco Elektronik Gmbh (DEU)
SN54LS21JA Adelco Elektronik Gmbh (DEU)
SN54LS21J Lacon Electronic Gmbh (DEU)
SN54LS21J PRIMARY Texas Instruments Incorporated (USA)
Related Parts
5962-01-034-9830INTERCHANGEABLE
MICROCIRCUIT,DIGITAL

Frequently Asked Questions

What is NSN 5962-01-047-8578?

NSN 5962-01-047-8578 is a Microcircuit,digital, manufactured by Texas Instruments Incorporated, classified under FSC 5962 (No Item Name Available). Status: active.

What are the part numbers for NSN 5962-01-047-8578?

NSN 5962-01-047-8578 has 4 cross-referenced part numbers: SN54LS21J (Adelco Elektronik Gmbh), SN54LS21JA (Adelco Elektronik Gmbh), SN54LS21J (Lacon Electronic Gmbh), SN54LS21J (Texas Instruments Incorporated).

What NSN replaces 5962-01-047-8578?

There is 1 known substitute for 5962-01-047-8578: 5962-01-034-9830. Verify interchangeability with system specifications before substitution.

What are the specifications of SN54LS21J?

Key specifications for SN54LS21J: Output Logic Form: COMPLEMENTARY-LOGIC; Inclosure Configuration: DUAL-IN-LINE; Inclosure Material: CERAMIC; Operating Temp Range: -55.0 TO 125.0 CELSIUS DEGC. 8 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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