This part is a kind of semiconductor called HCF4053B.

Function of this product has TRIPLE 2-CHANNEL ANALOG MULTIPLEXER/DEMULTIPLEXER.

Manufacturers : STMicroelectronics

Image and pinout :

Some of the text within the PDF file :

HCF4053B TRIPLE 2-CHANNEL ANALOG MULTIPLEXER/DEMULTIPLEXER s LOW "ON" RESISTANCE : 125Ω (Typ.) OVER 15V p.p SIGNAL-INPUT RANGE FOR VDD - VEE = 15V s HIGH "OFF" RESISTANCE : CHANNEL LEAKAGE ± 100pA (Typ.) at VDD - VEE = 18V )s BINARY ADDRESS DECODING ON CHIP t(ss HIGH DEGREE OF LINEARITY : < 0.5% DISTORTION TYP. at fIS = 1KHz, VIS = 5 Vpp, ucVDD - VSS > 10V, RL = 10KΩ ds VERY LOW QUIESCENT POWER roDISSIPATION UNDER ALL DIGITAL CONTROL INPUT AND SUPPLY PCONDITIONS : 0.2 µW (Typ.) teat VDD - VSS = VDD - VEE =10V les MATCHED SWITCH CHARACTERISTICS : oRON = 5Ω (Typ.) FOR VDD - VEE = 15V ss WIDE RANGE OF DIGITAL AND ANALOG bSIGNAL LEVELS : DIGITAL 3 to 20, OANALOG TO 20V p.p. -s QUIESCENT CURRENT SPECIF. UP TO 20V t(s)s 5V, 10V AND 15V PARAMETRIC RATINGS s INPUT LEAKAGE CURRENT cII [ ... ]

HCF4053B PDF Datasheet Download