MAX3245ECWI+T

Overview

The MAX3245ECWI+T is a single-supply RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It features three drivers and five receivers, supporting full-duplex communication at data rates up to 1Mbps. The device operates from a +3.0V to +5.5V supply with a typical shutdown supply current of 1µA. It utilizes AutoShutdown Plus technology to automatically enter low-power mode when inputs are inactive for over 30 seconds. The component is housed in a 28-pin SO-Wide package and supports an operating temperature range of -40°C to +85°C.

Feature Summary

• AutoShutdown Plus functionality enables automatic power-down and wake-up based on input activity.
• MegaBaud operation guarantees high-speed data transmission up to 1Mbps.
• Integrated dual charge pump generates required voltage levels using only four small capacitors.
• Dedicated R2OUTB output allows continuous monitoring of receiver activity during shutdown.

Applications

• Notebook, subnotebook, and palmtop computers
• Cellular phones and handheld equipment
• Battery-powered peripherals and printers

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature rating. Confirm RoHS compliance status through manufacturer datasheets or certificates of conformity. Ensure the component source is authorized to avoid counterfeit parts.

Selection Notes

Select this model for applications requiring high-speed RS-232 communication with minimal power consumption. The 1Mbps rate suits ISDN modem connections. Verify that the system design accommodates the 28-pin SO-Wide footprint and external capacitor requirements for the charge pump circuit.

Part Context

This part belongs to the MAX32xx series of EIA/TIA-232 interface devices. It shares architectural similarities with the MAX3224–MAX3227 and MAX3244 models, differing primarily in driver/receiver counts and guaranteed data rates. The 'E' suffix indicates industrial temperature range availability.

Replacement Considerations

The MAX3245EEUI+T serves as a pin-compatible alternative in a TSSOP package. Other family members like the MAX3244 offer similar functionality but are limited to 250kbps data rates.