MAX232 is a communication IC. It is used to convert TTL Signals to RS232 Signal and vice versa. MAX232 provides RS-232 voltage level outputs (approx. ± 7.5 V) from a single + 5 V supply via on-chip charge pumps and external capacitors. This makes it useful for implementing RS-232 in devices that otherwise do not need any voltages outside the 0 V to + 5 V range, as power supply design does not need to be made more complicated just for driving the RS-232 in this case.

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  • Operate from Single +5V Power Supply (+5V and +12V—MAX231/MAX239)
  • Low-Power Receive Mode in Shutdown (MAX223/MAX242)
  • Meet All EIA/TIA-232E and V.28 Specifications
  • Multiple Drivers and Receivers
  • 3-State Driver and Receiver Outputs


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