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Technical Data Sheet
540040021 ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The MICROCIRCUIT,DIGITAL is a the manufacturer industrial component. Key specifications include features_provided: BIPOLAR, output_logic_form: TRANSISTOR-TRANSISTOR LOGIC, inclosure_material: PLASTIC, operating_temp_range: +0.0 TO 70.0 CELSIUS DEGC, input_circuit_pattern: DUAL 4 INPUT, inclosure_configuration: DUAL-IN-LINE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5962-01-038-3455, 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
540040021
NSN: 5962-01-038-3455
FSC: 5962
CAGE: U2090 — CAE (UK) PLC (GBR)
SPECIFICATIONS
features_providedBIPOLAR
output_logic_formTRANSISTOR-TRANSISTOR LOGIC
inclosure_materialPLASTIC
operating_temp_range+0.0 TO 70.0 CELSIUS DEGC
input_circuit_patternDUAL 4 INPUT
inclosure_configurationDUAL-IN-LINE
design_function_and_quantity2 GATE, AND
NSN5962-01-038-3455
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MICROCIRCUIT,DIGITAL TITLE COMPONENT PN 540040021 MFR MICROCIRCUIT,DIGITAL
KEY FEATURES
OUTPUT LOGIC FORM: TRANSISTOR-TRANSISTOR LOGIC
INPUT CIRCUIT PATTERN: DUAL 4 INPUT
INCLOSURE CONFIGURATION: DUAL-IN-LINE
OPERATING TEMP RANGE: +0.0 TO 70.0 CELSIUS DEGC
INCLOSURE MATERIAL: PLASTIC
DESIGN FUNCTION AND QUANTITY: 2 GATE, AND
FEATURES PROVIDED: BIPOLAR
TECHNICAL CHARACTERISTICS (FLIS)
OUTPUT LOGIC FORMTRANSISTOR-TRANSISTOR LOGIC
INPUT CIRCUIT PATTERNDUAL 4 INPUT
INCLOSURE CONFIGURATIONDUAL-IN-LINE
OPERATING TEMP RANGE+0.0 TO 70.0 CELSIUS DEGC
INCLOSURE MATERIALPLASTIC
DESIGN FUNCTION AND QUANTITY2 GATE, AND
FEATURES PROVIDEDBIPOLAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
477-1359-004Interchangeable
interchangeable cross-reference
interchangeable
SC27441LHInterchangeable
interchangeable cross-reference
interchangeable
308738-2Interchangeable
interchangeable cross-reference
interchangeable
SN74LS21NP3Interchangeable
interchangeable cross-reference
interchangeable
DM74LS21NA+Interchangeable
interchangeable cross-reference
interchangeable
DM54LS21J/883Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 540040021?
540040021 is a MICROCIRCUIT,DIGITAL.
What parts can replace 540040021?
There are 13 known substitutes for 540040021: 477-1359-004, SC27441LH, 308738-2 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 540040021?
540040021 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5962-01-038-3455. This indicates validated use in U.S. government and defense supply chains.
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