MAX3386EIDW

Overview

The MAX3386EIDW is a low-power RS-232 transceiver manufactured by Texas Instruments, housed in a 20-pin SOIC package. It supports full-duplex communication with three drivers and two receivers, operating at data rates up to 250 kb/s. The device functions within a supply voltage range of 3 V to 5.5 V and draws only 1 mA of operating current. It features ±15 kV ESD protection on all pins and includes a shutdown mode for power conservation. The component operates within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrated ESD protection rated at ±15 kV across all RS-232 inputs and outputs.
• Low-power architecture with active current consumption of 1 mA and dedicated shutdown control.
• Supports standard RS-232 protocols including EIA/TIA-232 and V.24/V.28 specifications.

Applications

• Industrial equipment requiring robust serial communication interfaces.
• Portable battery-powered devices utilizing low-voltage logic systems.
• Embedded systems needing isolated serial data transmission channels.

Procurement Notes

Verify the specific suffix 'IDW' to confirm the 20-SOIC package and extended temperature range (-40°C to +85°C). Confirm RoHS compliance status as manufacturing practices may vary by production batch. Check for obsolescence notices from Texas Instruments, as this component family has faced discontinuation risks in favor of newer TRS series equivalents.

Selection Notes

Select this part when a 20-pin surface-mount solution is required for RS-232 interfacing with strict space constraints. Ensure the design accommodates the external charge pump capacitors necessary for voltage generation. Compare against the TRS3386EIDW if split-supply pin requirements or updated packaging formats are preferred for the same functional specification.

Part Context

This component belongs to the MAX3386E family of low-power RS-232 transceivers designed for portable applications. It serves as a legacy interface solution before the transition to the TRS3386 series. The device integrates charge pumps internally, reducing the need for external components compared to older generations while maintaining compatibility with standard RS-232 signal levels.

Replacement Considerations

The TRS3386EIDWR is a documented parameter-equivalent replacement offering similar electrical characteristics. Verify pinout compatibility and capacitor requirements when transitioning between the MAX and TRS series designs.