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General ics
A-D and D-A converters
Analog ICs
Central Processing Units and Microcontrollers
Drivers and level shifters
MAX232, MAX232A
5V RS232 transceiver.To operate, connect two capacitors to the C1 and C2 pins, one between the V- and GND, and one between V+ and GND. For the MAX232, capacitors should be 10uF, for the MAX232A 100nF is enough.