Quad 2-input multiplexer in a 16-TSSOP footprint
The SN74HC258PW is a single-supply 74HC-series multiplexer from Texas Instruments, organizing four 2:1 selector channels into one 16-TSSOP package. Each channel selects between two data inputs and routes the chosen signal to the corresponding output — the circuit count of 4 x 2:1 means four independent selection decisions per chip, with a common select line controlling all four channels simultaneously.
Active production, ROHS3 compliant
The part carries ROHS3 compliance, meaning it meets the current European restriction on hazardous substances including the four phthalates added in the 2015 amendment.