General Description

The MAX3110E/MAX3111E combine a full-featured uni versal asynchronous receiver/transmitter (UART) with

±15kV ESD-protected RS-232 transceivers and integrated charge-pump capacitors into a single 28-pin package for use in space-, cost-, and power-constrained applications. The MAX3110E/MAX3111E also feature an SPI™/QSPI™/MICROWIRE™-compatible serial interface to save additional board space and microcontroller (µC) I/O pins.

Features

♦Integrated RS-232 Transceiver and UART in a Single 28-Pin Package

♦SPI/QSPI/MICROWIRE-Compatible µC Interface

♦Internal Charge-Pump Capacitors—No External Components Required!

♦True RS-232 Operation Down to VCC= +3V (MAX3111E)

♦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

♦Single-Supply Operation

+5V (MAX3110E)

+3.3V (MAX3111E)

♦Low Power

600µA Supply Current

10µA Shutdown Supply Current with Receiver Interrupt Active

♦Guaranteed 230kbps Data Rate

♦Hardware/Software-Compatible with MAX3100 and MAX3222E