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Dallas Semiconductor  · Electronic Components

DS89C420-MNL

MICROCIRCUIT,DIGITAL — NSN 5962-01-513-7747

Part NumberDS89C420-MNL
ManufacturerDallas Semiconductor
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameMICROCIRCUIT,DIGITAL
Federal Supply Class5962 — Microcircuits, Electronic
Operating Temp Range-40.0 TO 85.0 CELSIUS
Storage Temp Range-55.0 TO 125.0 CELSIUS
Terminals40 BEAM LEAD
Enclosure ConfigurationDUAL-IN-LINE
Special FeaturesPLASTIC DUAL-IN-LINE PACKAGE; TWO FULL-DUPLEX SERIAL PORTS; PROGRAMMABLE WATCHDOG TIMER; 13 INTERRUPT SOURCES (SIX EXTER
Body Length1.980 INCHES MINIMUM AND 2.085 INCHES MAXIMUM
Body Height0.115 INCHES MINIMUM AND 0.345 INCHES MAXIMUM
Body Width0.600 INCHES MINIMUM AND 0.625 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 DS89C420-MNL available?
We can source DS89C420-MNL 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 DS89C420-MNL by Dallas Semiconductor obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If DS89C420-MNL 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 DS89C420-MNL?
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 DS89C420-MNL?
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.