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Technical Data Sheet
DM74LS21N ✓ 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 body_width: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, body_height: 0.180 INCHES MAXIMUM IN, body_length: 0.710 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN, features_provided: W/TOTEM POLE OUTPUT AND W/RESISTOR AND POSITIVE OUTPUTS, output_logic_form: TRANSISTOR-TRANSISTOR LOGIC, inclosure_material: PLASTIC. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5962-01-034-9830, 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
DM74LS21N
NSN: 5962-01-034-9830
FSC: 5962
CAGE: 27014 — NATIONAL SEMICONDUCTOR CORPORATION (USA)
SPECIFICATIONS
body_width0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
body_height0.180 INCHES MAXIMUM IN
body_length0.710 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN
features_providedW/TOTEM POLE OUTPUT AND W/RESISTOR AND POSITIVE OUTPUTS
output_logic_formTRANSISTOR-TRANSISTOR 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_patternDUAL 4 INPUT
end_item_identificationRED ANALOG SWITCH FSCM 04655
inclosure_configurationDUAL-IN-LINE
terminal_surface_treatmentSOLDER
NSN5962-01-034-9830
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MICROCIRCUIT,DIGITAL TITLE COMPONENT PN DM74LS21N MFR MICROCIRCUIT,DIGITAL
KEY FEATURES
INPUT CIRCUIT PATTERN: DUAL 4 INPUT
OUTPUT LOGIC FORM: TRANSISTOR-TRANSISTOR LOGIC
OPERATING TEMP RANGE: -55.0 TO 125.0 CELSIUS DEGC
MAXIMUM POWER DISSIPATION RATING: 22.0 MILLIWATTS
STORAGE TEMP RANGE: -65.0 TO 150.0 CELSIUS DEGC
TERMINAL TYPE AND QUANTITY: 14 PRINTED CIRCUIT
FEATURES PROVIDED: HERMETICALLY SEALED AND MONOLITHIC AND POSITIVE OUTPUTS AND SCHOTTKY AND LOW POWER AND W/TOTEM POLE OUTPUT
TECHNICAL CHARACTERISTICS (FLIS)
INPUT CIRCUIT PATTERNDUAL 4 INPUT
OUTPUT LOGIC FORMTRANSISTOR-TRANSISTOR LOGIC
OPERATING TEMP RANGE-55.0 TO 125.0 CELSIUS DEGC
END ITEM IDENTIFICATIONRED ANALOG SWITCH FSCM 04655
MAXIMUM POWER DISSIPATION RATING22.0 MILLIWATTS
STORAGE TEMP RANGE-65.0 TO 150.0 CELSIUS DEGC
TERMINAL TYPE AND QUANTITY14 PRINTED CIRCUIT
FEATURES PROVIDEDHERMETICALLY SEALED AND MONOLITHIC AND POSITIVE OUTPUTS AND SCHOTTKY AND LOW POWER AND W/TOTEM POLE OUTPUT
SPECIFICATION/STANDARD DATA81349-MIL-M-38510/310 GOVERNMENT SPECIFICATION
CASE OUTLINE SOURCE AND DESIGNATORD-1 MIL-M-38510
VERIFIED SUBSTITUTES & CROSS-REFERENCES 36
524214Interchangeable
interchangeable cross-reference
interchangeable
74H21PCInterchangeable
interchangeable cross-reference
interchangeable
DM54H21D883BInterchangeable
interchangeable cross-reference
interchangeable
74H21Interchangeable
interchangeable cross-reference
interchangeable
540040021Interchangeable
interchangeable cross-reference
interchangeable
SN74LS21NInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DM74LS21N?
DM74LS21N is a MICROCIRCUIT,DIGITAL.
What parts can replace DM74LS21N?
There are 36 known substitutes for DM74LS21N: 524214, 74H21PC, DM54H21D883B and 33 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DM74LS21N?
DM74LS21N is cataloged in the Federal Logistics Information System (FLIS) under NSN 5962-01-034-9830. This indicates validated use in U.S. government and defense supply chains.
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