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Texas Instruments Incorporated  · Electronic Components

SN74LS645N

MICROCIRCUIT,DIGITAL — NSN 5962-01-206-0726

Part NumberSN74LS645N
ManufacturerTexas Instruments Incorporated
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameMICROCIRCUIT,DIGITAL
Federal Supply Class5962 — Microcircuits, Electronic
Operating Temp Range-0.0 TO 70.0 CELSIUS
Output Logic FormTRANSISTOR-TRANSISTOR LOGIC
Enclosure ConfigurationDUAL-IN-LINE
Enclosure MaterialPLASTIC
Body Width0.245 INCHES MINIMUM AND 0.300 INCHES MAXIMUM
Body Height0.180 INCHES NOMINAL
Features Provided3-STATE OUTPUT AND ASYNCHRONOUS AND BIDIRECTIONAL
Input Circuit Pattern9 INPUT
Body Length0.930 INCHES MINIMUM AND 0.975 INCHES MAXIMUM
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RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant

Frequently asked

Is SN74LS645N available?
We can source SN74LS645N even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is SN74LS645N by Texas Instruments Incorporated obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SN74LS645N has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like SN74LS645N?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for SN74LS645N?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.