National Semiconductor Corporation · Electronic Components
54LS109DMQB
MICROCIRCUIT,DIGITAL — NSN 5962-01-199-3908
Part Number54LS109DMQB
ManufacturerNational Semiconductor Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5962-01-199-3908 (NSN)
Federal Item NameMICROCIRCUIT,DIGITAL
Federal Supply Class5962 — Microcircuits, Electronic
Operating Temp Range-55.0 TO 125.0 CELSIUS
Output Logic FormTRANSISTOR-TRANSISTOR LOGIC
Design Function2 FLIP-FLOP, J-K
Enclosure ConfigurationDUAL-IN-LINE
Enclosure MaterialCERAMIC
Body Height0.185 INCHES MAXIMUM
Features ProvidedLOW POWER AND POSITIVE EDGE TRIGGERED AND SCHOTTKY
Body Width0.245 INCHES MINIMUM AND 0.271 INCHES MAXIMUM
Body Length0.755 INCHES MINIMUM AND 0.785 INCHES MAXIMUM
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
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Frequently asked
Is 54LS109DMQB available?
We can source 54LS109DMQB 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 54LS109DMQB by National Semiconductor Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 54LS109DMQB 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 54LS109DMQB?
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 54LS109DMQB?
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.