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Technical Data Sheet
74LS21PCQR ✓ 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: 0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN, body_height: 0.140 INCHES MAXIMUM IN, body_length: 0.796 INCHES MAXIMUM IN, features_provided: BURN IN, 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 5962-01-248-9490, 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
74LS21PCQR
NSN: 5962-01-248-9490
FSC: 5962
CAGE: 07263 — FAIRCHILD SEMICONDUCTOR CORP (USA)
SPECIFICATIONS
body_width0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
body_height0.140 INCHES MAXIMUM IN
body_length0.796 INCHES MAXIMUM IN
features_providedBURN IN
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
NSN5962-01-248-9490
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MICROCIRCUIT,DIGITAL TITLE COMPONENT PN 74LS21PCQR MFR MICROCIRCUIT,DIGITAL
KEY FEATURES
OUTPUT LOGIC FORM: TRANSISTOR-TRANSISTOR LOGIC
FEATURES PROVIDED: BURN IN
OPERATING TEMP RANGE: +0.0 TO 70.0 CELSIUS DEGC
INCLOSURE MATERIAL: PLASTIC
DESIGN FUNCTION AND QUANTITY: 2 GATE, AND
BODY LENGTH: 0.796 INCHES MAXIMUM IN
TEST DATA DOCUMENT: 16331-63A133588 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
BODY WIDTH: 0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
OUTPUT LOGIC FORMTRANSISTOR-TRANSISTOR LOGIC
FEATURES PROVIDEDBURN IN
OPERATING TEMP RANGE+0.0 TO 70.0 CELSIUS DEGC
INCLOSURE MATERIALPLASTIC
DESIGN FUNCTION AND QUANTITY2 GATE, AND
BODY LENGTH0.796 INCHES MAXIMUM IN
TEST DATA DOCUMENT16331-63A133588 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
BODY WIDTH0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
INPUT CIRCUIT PATTERNDUAL 4 INPUT
INCLOSURE CONFIGURATIONDUAL-IN-LINE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
477-1359-004Interchangeable
interchangeable cross-reference
interchangeable
SC27441LHInterchangeable
interchangeable cross-reference
interchangeable
308738-2Interchangeable
interchangeable cross-reference
interchangeable
540040021Interchangeable
interchangeable cross-reference
interchangeable
SN74LS21NInterchangeable
interchangeable cross-reference
interchangeable
172-0021Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 74LS21PCQR?
74LS21PCQR is a MICROCIRCUIT,DIGITAL.
What parts can replace 74LS21PCQR?
There are 11 known substitutes for 74LS21PCQR: 477-1359-004, SC27441LH, 308738-2 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 74LS21PCQR?
74LS21PCQR is cataloged in the Federal Logistics Information System (FLIS) under NSN 5962-01-248-9490. This indicates validated use in U.S. government and defense supply chains.
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