This part is a kind of semiconductor called SP232E.

Function of this product has High-Performance RS-232 Line Drivers/Receivers.

Manufacturers : Sipex

Image and pinout :

Some of the text within the PDF file :

® SP202E/232E/233E/310E/312E High-Performance RS-232 Line Drivers/Receivers ■ Operates from Single +5V Power Supply ■ Meets All RS-232D and ITU V.28 Specifications ■ Operates with 0.1µF to 10µF Capacitors ■ High Data Rate – 120Kbps Under Load ■ Low Power Shutdown ≤1µA (Typical) ■ 3-State TTL/CMOS Receiver Outputs ■ Low Power CMOS – 3mA Operation ■ Improved ESD Specifications: ±15kV Human Body Model ±15kV IEC1000-4-2 Air Discharge ±8kV IEC1000-4-2 Contact Discharge C 1+ V+ C1C 2+ C2VT2OUT R2IN 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC GND T1OUT R1IN R1OUT T1IN T2IN R2OUT Now Available in Lead Free Packaging The SP202E/232E/233E/310E/312E devices are a family of line driver and receiver pairs that meet the specifications of RS-232 and V.28 serial protoco [ ... ]

SP232E PDF Datasheet Download