±15kV ESD-Protected, 3.0V to 5.5V, Low-Power, Up to 250kbps, True RS-232 Transceiver

The MAX3384E is a 3V-powered EIA/TIA-232 and V.28/V.24 communications interface with low power requirements, high data-rate capabilities, and enhanced electrostatic discharge (ESD) protection. All transmitter outputs and receiver inputs are protected to ±15kV using IEC 1000-4-2 Air-Gap Discharge, ±8kV using IEC 1000-4-2 Contact Discharge, and ±15kV using the Human Body Model.

The transceiver has a proprietary low-dropout transmitter output stage, delivering true RS-232 performance from a +3.0V to +5.5V supply with a dual charge pump. The charge pump requires only four small 0.1µF capacitors for operation from a +3.3V supply. Each device is guaranteed to run at data rates of 250kbps while maintaining RS-232 output levels.

The MAX3384E has two receivers and two drivers. It features a 1µA shutdown mode that reduces power consumption and extends battery life in portable systems.

The MAX3384E is available in a space-saving SSOP package in either the commercial (0°C to +70°C) or extended temperature (-40°C to +85°C) range.

Applications

* Battery-Powered Applications * Handheld Equipment * PDAs * Peripherals * Printers

* ESD Protection for RS-232 I/O Pins

* ±15kV—Human Body Model

* ±8kV—IEC 1000-4-2, Contact Discharge

* ±15kV—IEC 1000-4-2, Air-Gap Discharge

* Latchup Free

* 300µA Supply Current

* 1µA Low-Power Shutdown

* 250kbps Guaranteed Data Rate

* 250µs Time to Exit Shutdown with 3kΩ Load on V+

* 6V/µs Guaranteed Slew Rate

* Transmitter and Receiver Outputs High Impedance in Shutdown

* Meets EIA/TIA-232 Specifications Down to 3.0V