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644-723 — MICROCIRCUIT,DIGITAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

644-723: MICROCIRCUIT,DIGITAL.

The MICROCIRCUIT,DIGITAL is a the manufacturer industrial component. Key specifications include body_width: 0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN, body_height: 0.140 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN, body_length: 0.840 INCHES MAXIMUM IN, output_logic_form: TRANSISTOR-TRANSISTOR LOGIC, inclosure_material: CERAMIC AND GLASS, storage_temp_range: -65.0 TO 150.0 CELSIUS DEGC. This part is cataloged in the U.S.

Government catalog under NSN 5962-01-066-1153, 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
644-723
NSN: 5962-01-066-1153
FSC: 5962 — Microcircuits, Electronic
CAGE: K2504 — RS COMPONENTS LIMITED (GBR)
SPECIFICATIONS
body_width0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
body_height0.140 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
body_length0.840 INCHES MAXIMUM IN
features_providedHERMETICALLY SEALED AND MONOLITHIC AND POSITIVE OUTPUTS AND LOW POWER AND SCHOTTKY AND EDGE TRIGGERED AND PRESETTABLE AND PROGRAMMABLE AND SYNCHRONOUS AND W/CLEAR
output_logic_formTRANSISTOR-TRANSISTOR LOGIC
inclosure_materialCERAMIC AND GLASS
storage_temp_range-65.0 TO 150.0 CELSIUS DEGC
operating_temp_range-55.0 TO 125.0 CELSIUS DEGC
input_circuit_pattern8 INPUT
inclosure_configurationDUAL-IN-LINE
terminal_surface_treatmentSOLDER
specification/standard_data81349-MIL-M-38510/315 GOVERNMENT SPECIFICATION
NSN5962-01-066-1153
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MICROCIRCUIT,DIGITAL TITLE COMPONENT PN 644-723 MFR MICROCIRCUIT,DIGITAL
KEY FEATURES
•
INPUT CIRCUIT PATTERN: 8 INPUT
•
INCLOSURE MATERIAL: CERAMIC AND GLASS
•
TERMINAL SURFACE TREATMENT: SOLDER
•
DESIGN FUNCTION AND QUANTITY: 1 COUNTER, BINARY CODED DECIMAL UP/DOWN
•
BODY WIDTH: 0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
•
BODY HEIGHT: 0.140 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
•
FEATURES PROVIDED: HERMETICALLY SEALED AND MONOLITHIC AND POSITIVE OUTPUTS AND LOW POWER AND SCHOTTKY AND EDGE TRIGGERED AND PRESETTABLE AND PROGRAMMABLE AND SYNCHRONOUS AND W/CLEAR
•
INCLOSURE CONFIGURATION: DUAL-IN-LINE
TECHNICAL CHARACTERISTICS
INPUT CIRCUIT PATTERN8 INPUT
INCLOSURE MATERIALCERAMIC AND GLASS
TERMINAL SURFACE TREATMENTSOLDER
DESIGN FUNCTION AND QUANTITY1 COUNTER, BINARY CODED DECIMAL UP/DOWN
BODY WIDTH0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
BODY HEIGHT0.140 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
FEATURES PROVIDEDHERMETICALLY SEALED AND MONOLITHIC AND POSITIVE OUTPUTS AND LOW POWER AND SCHOTTKY AND EDGE TRIGGERED AND PRESETTABLE AND PROGRAMMABLE AND SYNCHRONOUS AND W/CLEAR
INCLOSURE CONFIGURATIONDUAL-IN-LINE
CASE OUTLINE SOURCE AND DESIGNATORD-2 MIL-M-38510
SPECIFICATION/STANDARD DATA81349-MIL-M-38510/315 GOVERNMENT SPECIFICATION
SUBSTITUTES & CROSS-REFERENCES 9
148632-LS138Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
54LS193DMQBReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
SN74LS193JReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
1202274-201Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
7908026-14Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
405899Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 644-723?
644-723 is a MICROCIRCUIT,DIGITAL.
What parts can replace 644-723?
There are 9 known substitutes for 644-723: 148632-LS138, 54LS193DMQB, SN74LS193J and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 644-723?
644-723 is cataloged in the U.S. Government catalog under NSN 5962-01-066-1153. 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.