BUY MAX232CPE+ https://www.utsource.net/itm/p/1909747.html
IC TRANSCEIVER FULL 2/2 16DIP
Manufacturer: Maxim Integrated Description: RS-232 Transceivers Features: +5V-Powered, Multichannel RS-232 Line Drivers/Receivers Low Power Consumption 0.1μF Capacitors True RS-232 Performance ±15kV ESD Protection Meets or Exceeds TIA/EIA-232-F and ITU Recommendation V.28 Available in 8-Pin PDIP, SO, and SSOP Packages Applications: PC Modems Notebook Computers Printers Point-of-Sale Terminals Instrumentation Industrial Control Hand-Held Terminals Robotics Bar Code Scanners (For reference only)