Description
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.
The receivers reduce RS232 inputs (which may be as high as ± 25 V), to standard 5 V TTL levels. These receivers have a typical threshold of 1.3 V, and a typical hysteresis of 0.5 V.
Features
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
Applications
Portable Computers
Low-Power Modems
Interface Translation
Battery-Powered RS-232 Systems
Multidrop RS232 Networks
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