This part is a kind of semiconductor called MC14053.

Function of this product has Analog Multiplexers/Demultiplexers.

Manufacturers : ON Semiconductor

Image and pinout :

Some of the text within the PDF file :

MC14051B, MC14052B, MC14053B Analog Multiplexers/Demultiplexers The MC14051B, MC14052B, and MC14053B analog multiplexers are digitally–controlled analog switches. The MC14051B effectively implements an SP8T solid state switch, the MC14052B a DP4T, and the MC14053B a Triple SPDT. All three devices feature low ON impedance and very low OFF leakage current. Control of analog signals up to the complete supply voltage range can be achieved. http://onsemi.com MARKING DIAGRAMS 16 PDIP–16 P SUFFIX CASE 648 MC140XXBCP AWLYYWW 1 16 SOIC–16 D SUFFIX CASE 751B 1 16 TSSOP–16 DT SUFFIX CASE 948F 1 VDD Vin, Vout DC Supply Voltage (Referenced to VEE, VSS ≥ VEE) Input or Output Voltage Range (DC or Transient) (Referen– ced to VSS for Control Inputs and VEE for Switch I/O) Input Current (DC or T [ ... ]

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