PartsTable
Technical Data Sheet

MK3870/42N — MICROCIRCUIT,DIGITAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

MK3870/42N: MICROCIRCUIT,DIGITAL.

The MICROCIRCUIT,DIGITAL is a the manufacturer industrial component. Key specifications include body_width: 0.540 INCHES NOMINAL IN, body_height: 0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN, body_length: 2.070 INCHES MAXIMUM IN, features_provided: W/STROBE AND W/RESET AND BIDIRECTIONAL AND W/CLOCK, output_logic_form: N-TYPE METAL OXIDE-SEMICONDUCTOR LOGIC, inclosure_material: PLASTIC. This part is cataloged in the U.S.

Government catalog under NSN 5962-01-266-1424, 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
MK3870/42N
NSN: 5962-01-266-1424
NIINs: 012661424, 012943748, 012943749
FSC: 5962 — Microcircuits, Electronic
CAGE: 50088 — STMICROELECTRONICS INC (USA)
SPECIFICATIONS
body_width0.540 INCHES NOMINAL IN
body_height0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
body_length2.070 INCHES MAXIMUM IN
bit_quantity8
features_providedW/STROBE AND W/RESET AND BIDIRECTIONAL AND W/CLOCK
output_logic_formN-TYPE METAL OXIDE-SEMICONDUCTOR LOGIC
inclosure_materialPLASTIC
storage_temp_range-65.0 TO 150.0 CELSIUS DEGC
operating_temp_range+0.0 TO 70.0 CELSIUS DEGC
input_circuit_pattern37 INPUT
end_item_identification6625-01-205-6492 TEST SET,TRANSMISSION
inclosure_configurationDUAL-IN-LINE
NSN5962-01-266-1424
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MICROCIRCUIT,DIGITAL TITLE COMPONENT PN MK3870/42N MFR MICROCIRCUIT,DIGITAL
KEY FEATURES
•
BIT QUANTITY: 8
•
INPUT CIRCUIT PATTERN: 32 INPUT
•
INCLOSURE MATERIAL: PLASTIC
•
TERMINAL SURFACE TREATMENT: SOLDER
•
DESIGN FUNCTION AND QUANTITY: 1 MICROCOMPUTER
•
BODY WIDTH: 0.540 INCHES NOMINAL IN
•
BODY HEIGHT: 0.150 INCHES NOMINAL IN
•
FEATURES PROVIDED: W/RESET AND BIDIRECTIONAL AND LOW POWER
TECHNICAL CHARACTERISTICS
BIT QUANTITY8
INPUT CIRCUIT PATTERN32 INPUT
INCLOSURE MATERIALPLASTIC
TERMINAL SURFACE TREATMENTSOLDER
DESIGN FUNCTION AND QUANTITY1 MICROCOMPUTER
BODY WIDTH0.540 INCHES NOMINAL IN
BODY HEIGHT0.150 INCHES NOMINAL IN
FEATURES PROVIDEDW/RESET AND BIDIRECTIONAL AND LOW POWER
INCLOSURE CONFIGURATIONDUAL-IN-LINE
BODY LENGTH2.040 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
1820-2472Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
ROM/PROMReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is MK3870/42N?
MK3870/42N is a MICROCIRCUIT,DIGITAL.
What parts can replace MK3870/42N?
There are 2 known substitutes for MK3870/42N: 1820-2472, ROM/PROM. Substitute compatibility should be verified for your specific system.
What is the NSN for MK3870/42N?
MK3870/42N is cataloged in the U.S. Government catalog under NSN 5962-01-266-1424. 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.