Oki · Integrated Circuits
MSM81C55-5RS
2048-bit CMOS static RAM with I/O ports and timer
Part NumberMSM81C55-5RS
ManufacturerOki
AvailabilityIn stock — ships fast
Specifications
NSN5962-01-655-8563 (NSN)
Federal Item NameMICROCIRCUIT,DIGITAL
Operating Temp Range-40.0 TO 85.0 CELSIUS
Storage Temp Range-55.0 TO 150.0 CELSIUS
Voltage Rating0.5 VOLTS MAXIMUM OUTPUT
Output Logic FormCOMPLEMENTARY-METAL OXIDE-SEMICONDUCTOR LOGIC
Design Function1 MEMORY, STATIC RAM AND 1 COUNTER, BINARY AND 3 PORT, INPUT/OUTPUT AND 1 TIMER
Terminals40 PIN
Overall Length51.68 MILLIMETERS MINIMUM AND 52.28 MILLIMETERS MAXIMUM
Overall Width15.24 MILLIMETERS NOMINAL
Overall Height5.08 MILLIMETERS MAXIMUM
Enclosure ConfigurationDUAL-IN-LINE
Federal Supply Class5962 — Microcircuits, Electronic
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 MSM81C55-5RS in stock?
Yes — MSM81C55-5RS is in our stock database. Request a quote for current pricing and lead time.
Is MSM81C55-5RS by Oki obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MSM81C55-5RS 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 MSM81C55-5RS?
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 MSM81C55-5RS?
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.