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Texas Instruments CD74HC42E — Discrete Semiconductors

CD74HC42E 74HC Decoder, 1 x 4:10, 16-DIP, -55 to 125°C

MPNCD74HC42E
End of Life

Texas Instruments 74HC series decoder, 1 x 4:10 circuit, 2V to 6V single supply, -55°C to 125°C, through-hole 16-DIP package.

$1.47Ref. price · indicative, final on quote
Packaging16-DIP (0.300", 7.62mm)
RoHSROHS3 Compliant
Series74HC
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

CD74HC42E specifications
ParameterValue
TypeDecoder
Series74HC
MountingThrough Hole
Supply voltage2V ~ 6V
Voltage supply sourceSingle Supply
Current - output high, low5.2mA, 5.2mA
Operating temperature-55°C ~ 125°C
Circuit1 x 4:10
PackageTube
Case16-DIP (0.300\", 7.62mm)
Independent circuits1

Product details

What this decoder does

The CD74HC42E is a 74HC-series decoder with a 1 x 4:10 circuit, single-supply 2V to 6V, and -55°C to 125°C range.

Housed in a 16-pin DIP (0.300" body, 7.62 mm pitch), this part is through-hole only.

Marked as Active by the manufacturer with ROHS3 compliance.

Frequently asked questions

Is CD74HC42E obsolete?

No. The manufacturer lists it as Active with ROHS3 compliance. No end-of-life notice or last-time-buy window is in effect.

What is the function of CD74HC42E?

It is a BCD-to-decimal decoder: a 4-bit BCD input selects one of ten active-low outputs. The circuit is 1 x 4:10 — one decoder block with four inputs and ten outputs.

Can CD74HC42E be replaced by a 74HC42?

The 74HC42 is the generic family designation for the same BCD-to-decimal decoder function. The CD74HC42E is Texas Instruments' specific prefix for the 74HC42 in a through-hole DIP package. Functionally they are the same device; the CD74HC42E is the orderable MPN with full traceability.