3-V To 5.5-V Multichannel RS-232 Line Driver/Receiver With +/-15-kV ESD (HBM) Protection

The SN65C3223E and SN75C3223E consist of two Line Drivers two line receivers, and a dual charge-pump circuit with 15-kV ESD protection pin to pin (serial-port connection pins, including GND). These devices meet the requirements of TIA/EIA-232-F and provide 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 3-V to 5.5-V supply. The devices operate at typical data signaling rates up to 1000 kbit/s. By Texas Instruments