Texas Instruments · Electronic Components
CD4556B
IC, LOGIC, 4000, MULTIPLEXER
Part NumberCD4556B
ManufacturerTexas Instruments
AvailabilityAvailable to order — request a quote
Specifications
Automotive Qualification Standard-
Logic TypeDecoder / Demultiplexer
RohscompliantYES
Hazardousfalse
RohsphthalatescompliantYES
Logic Family Base NumberCD4556
Product RangeCD4000 LOGIC
IscanonicalY
Msl-
No Of Outputs4 Outputs
Operating Temperature Max125 °C
SvhcNo SVHC (27-Jun-2018)
Supply Voltage Max18 V
Logic Case StyleDIP
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 CD4556B available?
We can source CD4556B 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 CD4556B by Texas Instruments obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If CD4556B 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 CD4556B?
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 CD4556B?
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.