The LMS202E features two transmitters and two receivers for RS-232 communication. It has
a DC-to-DC converter that permits the device to operate with only a single +5V power supply. The
on-chip DC-to-DC converter which utilizes four external 0.1μF capacitors to generate dual internal
power supplies for RS-232 compatible output levels.
The device meet EIA/TIA-232E and CCITT V.28 specifications up to 230kbits/sec. The
LMS202E is available in a 16 pin narrow and wide SOIC package.
The transmitter outputs and receiver inputs have ±15kV electrostatic discharge (ESD)
protection. The LMS202E survives a ± 15kV ESD event to the RS-232 input and output pins when
subjected according to Human Body Model or IEC 1000-4-2 (EN61000-4-2), air-gap specification. It
survives a ±8kV discharge when subjected to IEC 1000-4-2 (EN61000-4-2), contact specification. This
device is designed for use in harsh environments where ESD is a concern.
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