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Texas Instruments CD4555BM — Analog & Data Acquisition

TI CD4555BM 4000B Decoder/Demultiplexer, 1x2:4, 3V-18V

MPNCD4555BM
End of Life

Texas Instruments CD4555BM, 4000B series Decoder/Demultiplexer, 1 x 2:4 circuit, 16-SOIC package, 3V to 18V supply, -55°C to 125°C.

$1.09Ref. price · indicative, final on quote
Texas Instruments CD4555BM datasheet (PDF)
Packaging16-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Series4000B
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

CD4555BM specifications
ParameterValue
TypeDecoder/Demultiplexer
Series4000B
MountingSurface Mount
Supply voltage3V ~ 18V
Voltage supply sourceDual Supply
Current - output high, low6.8mA, 6.8mA
Operating temperature-55°C ~ 125°C
Circuit1 x 2:4
PackageTube
Case16-SOIC (0.154\", 3.90mm Width)
Independent circuits2

Product details

CD4555BM — 1 x 2:4 decoder/demultiplexer from the 4000B family

It contains two independent 1 x 2:4 circuits, each with active-high outputs.

CMOS construction and dual-supply source

The CD4555BM is a CMOS device (, 4000B series). The voltage supply source is listed as dual supply, which refers to the device's internal architecture — it can decode an active-HIGH or active-LOW enable and address inputs referenced to VDD and VSS, not that it requires two separate power rails. Standard connection is a single supply between VDD (3V to 18V) and VSS (ground).

It is ROHS3 compliant.

Frequently asked questions

Is CD4555BM a CMOS device?

Yes, CD4555BM is part of the 4000B series, which is a CMOS logic family.

What is the difference between CD4555BM and CD4555BE?

The difference is the package. CD4555BM is in a surface-mount SOIC-16 package, while CD4555BE is in a through-hole PDIP-16 package. The die and electrical specifications are the same.