MAX3237EEAI+T

Overview

The MAX3237EEAI+T is a true RS-232 transceiver manufactured by Analog Devices (Maxim Integrated). It operates on a single +3.0V to +5.5V supply and features five drivers and three receivers in a 28-pin SSOP package. The device guarantees data rates up to 250kbps in normal mode and 1Mbps in MegaBaud mode. It includes an internal dual charge pump requiring only four 0.1µF capacitors. ESD protection reaches ±15kV for all pins, and shutdown current drops to 10nA.

Feature Summary

• Features a proprietary low-dropout transmitter output stage delivering true RS-232 performance from a single +3.0V to +5.5V supply.
• Includes enhanced electrostatic-discharge protection rated at ±15kV for all transmitter outputs, receiver inputs, and logic I/O pins.
• Provides a dedicated shutdown control pin that reduces supply current to 10nA while keeping all receivers active for external monitoring.
• Supports high-speed serial communications via the MegaBaud operating mode, enabling transmission rates up to 1Mbps.

Applications

• Peripheral applications requiring fast data transfer
• Battery-powered equipment
• Cell-phone data cables

Procurement Notes

Verify the component against official datasheets to confirm the specific EE suffix indicates the extended temperature range of -40°C to +85°C. Ensure the ordering suffix matches the required lead-free and RoHS compliance status. Cross-reference the manufacturer's part number with authorized distributors to validate authenticity and production status before procurement.

Selection Notes

Select this component when designing systems that require five drivers and three receivers within a space-constrained 28-pin SSOP footprint. It is suitable for applications needing ultra-low power consumption during standby, specifically where shutdown currents below 1µA are critical. Verify that the system voltage falls within the +3.0V to +5.5V range and that the interface requirements align with EIA/TIA-232 standards.

Part Context

This device belongs to the MAX3237E series of low-power, true RS-232 transceivers. It shares architectural similarities with the MAX3222E, MAX3232E, and MAX3241E but is distinct due to its specific configuration of five drivers and three receivers. This configuration makes it uniquely suited for peripheral interfaces compared to the standard two-driver variants found in the same family.

Replacement Considerations

Direct functional replacements within the same family include the MAX3237EAI+ or MAX3237EAI-T. For broader compatibility, verify if the MAX3241E meets the driver/receiver count requirements, though pinouts may differ. Always consult the latest manufacturer documentation to ensure electrical characteristics match the original design specifications.