MAX3386ECDWR

Overview

The MAX3386ECDWR is a low-power RS-232 transceiver manufactured by Texas Instruments, designed for full-duplex communication. It integrates three drivers and two receivers within a single package. The device operates on a single power supply ranging from 3 V to 5.5 V, supporting both 3.3 V and 5 V logic systems. It achieves data rates up to 250 kb/s while maintaining a typical operating supply current of 1 mA. The component features 15 kV ESD protection on all pins and includes a shutdown mode to minimize power consumption during idle periods. It is housed in a 20-pin SOIC package suitable for surface-mount applications.

Feature Summary

• Integrates three independent drivers and two receivers for multi-channel serial communication
• Provides robust 15 kV electrostatic discharge protection across all signal pins
• Includes a dedicated shutdown pin to significantly reduce quiescent power consumption
• Supports operation with standard single-supply voltages without requiring external negative voltage generation

Applications

• Industrial control systems requiring reliable serial communication interfaces
• Portable battery-powered equipment needing low standby current
• Data acquisition modules utilizing RS-232 connectivity
• Embedded systems interfacing with modems or peripheral devices

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and temperature range. Confirm RoHS compliance status through manufacturer datasheets. Check for obsolescence notices as inventory availability may vary. Ensure the ordering part number matches the required tape-and-reel configuration for automated assembly processes.

Selection Notes

Select this component when designing circuits that require multiple transmit and receive channels within a compact footprint. Consider the 250 kb/s speed limit when evaluating high-speed data requirements. Evaluate the 1 mA active current consumption against total system power budgets. Verify that the 20-pin SOIC package dimensions fit the available PCB space constraints.

Part Context

This device belongs to the MAX3386E series of RS-232 interface integrated circuits. It serves as a complete solution for converting TTL/CMOS levels to RS-232 standards. The family is characterized by its low power consumption and high reliability features. It is commonly used in applications where space savings and energy efficiency are critical design parameters.

Replacement Considerations

The TRS3386EIDWR is a documented parameter-equivalent alternative within the Texas Instruments portfolio. Both components share similar driver and receiver counts with comparable electrical specifications.