MAX220 to MAX249 Family RS232 Receiver / Driver
Operated from 5V, they use Charge Pump Capacitors to derive the +-12V for true RS232 Level
Available in many different Varieties.

Here you may find Circuit , Datasheet and the Pinout of the component MAX232

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Maxim (c) Maxim Integrated products (http://www.maxim-ic.com) Used by permission

pdfserv.maxim-ic.com/en/ds/MAX220-MAX249.pdf

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