Description

   The AT3232E 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/µs driver output slew rate.

Features

• ESD Protection for RS-232 Bus Pins

• ±15 kV (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 µA Typ

• External Capacitors . . . 4×0.1 µF

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

• Pin Compatible to Alternative High-Speed

• Device(1Mbit/s)SNx5C3232

Applications

• Battery-Powered Systems

• PDAs

• Notebooks

• Laptops

• Palmtop PCs

• Hand-Held Equipment

• Application Information