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Texas Instruments SN74CB3Q3253RGYR — Logic ICs

SN74CB3Q3253RGYR 2 x 4:1 Mux/Demux, 2.3V–3.6V, 16-VQFN

MPNSN74CB3Q3253RGYR
End of Life

Texas Instruments 74CB series multiplexer/demultiplexer, SN74CB3Q3253RGYR, 2 x 4:1 circuit, single 2.3V to 3.6V supply, industrial -40°C to 85°C, 16-VFQFN exposed pad package, surface mount.

$1.33Ref. price · indicative, final on quote
Packaging16-VFQFN Exposed Pad
RoHSROHS3 Compliant
Series74CB
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN74CB3Q3253RGYR specifications
ParameterValue
TypeMultiplexer/Demultiplexer
Series74CB
MountingSurface Mount
Voltage2.3V ~ 3.6V
Voltage supply sourceSingle Supply
Operating temperature-40°C ~ 85°C
Circuit2 x 4:1
PackageTape & Reel (TR); Cut Tape (CT)
Case16-VFQFN Exposed Pad
Independent circuits1

Product details

It routes one of four input channels to a common output per section, operating from a 2.3V to 3.6V rail — covering both 2.5V and 3.3V logic families without a level translator.

The 2.3V to 3.6V single-supply range means this part runs directly off a 3.3V or 2.5V rail without an extra regulator. At 3.3V nominal, the 300 mV headroom to the 3.6V absolute maximum is tight — a switching supply with 5% ripple pushes 3.465V, leaving only 135 mV margin. If your board sees 3.6V transients, budget a series resistor or a TVS clamp on the supply pin.

Package and thermal: the exposed pad matters

Without those vias, the junction temperature rises faster than the datasheet thermal resistance suggests — especially if the mux is switching near the 85°C end of the range. The pad is also the ground return; a poor solder joint here adds inductance that degrades signal integrity at higher edge rates.

Lifecycle and compliance: active and RoHS3

The ROHS3 exemption-free status simplifies compliance declarations for EU and California markets.

Frequently asked questions

Is SN74CB3Q3253RGYR obsolete or active?

It is ROHS3 compliant.