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MM54C992J — MICROCIRCUIT,DIGITAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

MM54C992J: MICROCIRCUIT,DIGITAL.

The MICROCIRCUIT,DIGITAL is a the manufacturer industrial component. Key specifications include body_width: 0.291 INCHES MAXIMUM IN, body_height: 0.020 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN, body_length: 0.765 INCHES MAXIMUM IN, output_logic_form: TRANSISTOR-TRANSISTOR LOGIC, inclosure_material: GLASS, operating_temp_range: -55.0 TO 125.0 CELSIUS DEGC. This part is cataloged in the U.S.

Government catalog under NSN 5962-01-180-9484, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MM54C992J
NSN: 5962-01-180-9484
FSC: 5962 — Microcircuits, Electronic
CAGE: 27014 — NATIONAL SEMICONDUCTOR CORPORATION (USA)
SPECIFICATIONS
body_width0.291 INCHES MAXIMUM IN
body_height0.020 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
body_length0.765 INCHES MAXIMUM IN
output_logic_formTRANSISTOR-TRANSISTOR LOGIC
inclosure_materialGLASS
operating_temp_range-55.0 TO 125.0 CELSIUS DEGC
inclosure_configurationDUAL-IN-LINE
design_function_and_quantity2 ENCODER, KEYBOARD
NSN5962-01-180-9484
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MICROCIRCUIT,DIGITAL TITLE COMPONENT PN MM54C992J MFR MICROCIRCUIT,DIGITAL
KEY FEATURES
•
INCLOSURE MATERIAL: GLASS
•
DESIGN FUNCTION AND QUANTITY: 2 ENCODER, KEYBOARD
•
BODY WIDTH: 0.291 INCHES MAXIMUM IN
•
BODY HEIGHT: 0.020 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
•
INCLOSURE CONFIGURATION: DUAL-IN-LINE
•
BODY LENGTH: 0.765 INCHES MAXIMUM IN
•
OUTPUT LOGIC FORM: TRANSISTOR-TRANSISTOR LOGIC
•
OPERATING TEMP RANGE: -55.0 TO 125.0 CELSIUS DEGC
TECHNICAL CHARACTERISTICS
INCLOSURE MATERIALGLASS
DESIGN FUNCTION AND QUANTITY2 ENCODER, KEYBOARD
BODY WIDTH0.291 INCHES MAXIMUM IN
BODY HEIGHT0.020 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
INCLOSURE CONFIGURATIONDUAL-IN-LINE
BODY LENGTH0.765 INCHES MAXIMUM IN
OUTPUT LOGIC FORMTRANSISTOR-TRANSISTOR LOGIC
OPERATING TEMP RANGE-55.0 TO 125.0 CELSIUS DEGC
OTHER ITEMS IN FSC 5962 — Microcircuits, Electronic
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5962-00-001-1861 5962-00-001-1901 5962-00-001-1902 5962-00-001-1905 5962-00-001-1906 5962-00-001-1907 5962-00-001-1908 5962-00-001-1909
SUBSTITUTES & CROSS-REFERENCES 1
445/9/03402Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is MM54C992J?
MM54C992J is a MICROCIRCUIT,DIGITAL.
What parts can replace MM54C992J?
There is 1 known substitute for MM54C992J: 445/9/03402. Substitute compatibility should be verified for your specific system.
What is the NSN for MM54C992J?
MM54C992J is cataloged in the U.S. Government catalog under NSN 5962-01-180-9484. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.