1FEATURES

· Qualified for Automotive Applications

· ESD Protection for RS-232 Bus Pins

– ±15-kV Human Body Model (HBM)

– ±8 kV (IEC61000-4-2, Contact Discharge)

– ±15 kV (IEC61000-4-2, Air-Gap Discharge)

· Meets or Exceeds the Requirements of

TIA/EIA-232-F and ITU v.28 Standards

· Operates With 3-V to 5.5-V VCC Supply

· Operates up to 250 kbit/s

· Two Drivers and Two Receivers

· Low Supply Current: 300 mA (Typ)

· External Capacitors: 4 × 0.1 mF

· Accepts 5-V Logic Input With 3.3-V Supply

· Pin Compatible to Alternative High-Speed

Device (1 Mbit/s): TRSF3232E

DESCRIPTION

The TRS3232E device consists of two line drivers, two line receivers, and a dual charge-pump circuit with

±15-kV IEC 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 3-V to 5.5-V supply. The devices operate at data signaling rates up to 250 kbit/s and a maximum of

30-V/ms driver output slew rate.