The TRS202E device consists of two line drivers, two line receivers, and a dual
charge-pump circuit. TRS202E has IEC61000-4-2 (Level 4) ESD protection pin-to-pin (serial-port
connection pins, including GND). The device meets the requirements of TIA/EIA-232-F and provides
the electrical interface between an asynchronous communication controller and the serial-port
connector. The charge pump and four small external capacitors allow operation from a single 5-V
supply. The device operates at data signaling rates up to 120 kbit/s and a maximum of
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30-V/µs driver output slew rate.