Skip to main content
Texas Instruments CY74FCT157CTSOCT — DC-DC Power Modules

CY74FCT157CTSOCT Multiplexer, 4 x 2:1, 16-SOIC, Active

MPNCY74FCT157CTSOCT
End of Life

Texas Instruments 74FCT series, CY74FCT157CTSOCT, Type Multiplexer, Circuit 4 x 2:1, Single Supply 4.75V ~ 5.25V, -40°C to 85°C, Surface Mount 16-SOIC (0.295", 7.50mm Width).

$1.91Ref. price · indicative, final on quote
Packaging16-SOIC (0.295", 7.50mm Width)
RoHSROHS3 Compliant
Series74FCT
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

CY74FCT157CTSOCT specifications
ParameterValue
TypeMultiplexer
Series74FCT
MountingSurface Mount
Supply voltage4.75V ~ 5.25V
Voltage supply sourceSingle Supply
Current - output high, low32mA, 64mA
Operating temperature-40°C ~ 85°C
Circuit4 x 2:1
PackageTape & Reel (TR); Cut Tape (CT)
Case16-SOIC (0.295\", 7.50mm Width)
Independent circuits1

Product details

What this quad 2:1 mux does on your board

The Texas Instruments CY74FCT157CTSOCT is a 4 x 2:1 multiplexer from the 74FCT family. It operates from a single 4.75 V to 5.25 V supply and is rated from -40°C to 85°C.

Supply rail and output drive — what to budget

It sources 32 mA and sinks 64 mA.

The 16-SOIC package has a 7.50 mm body width (0.295").

Frequently asked questions

Can CY74FCT157CTSOCT be used as a replacement for 74FCT157?

Yes — CY74FCT157CTSOCT is a specific ordering code within the 74FCT157 function. It is a 4 x 2:1 multiplexer with the same logic and pinout as the base 74FCT157, in a surface-mount 16-SOIC package.