MAX3232EIDW

Overview

The MAX3232EIDW is a dual RS-232 transceiver manufactured by Texas Instruments, designed for single-supply operation between 3V and 5.5V. It integrates two line drivers and two line receivers with an internal dual charge-pump circuit requiring only four external capacitors. The device supports data signaling rates up to 250kbit/s and features ±15kV IEC ESD protection on serial-port connection pins. It operates within a temperature range of -40°C to +85°C and is housed in a 16-pin SOIC (DW) package.

Feature Summary

• Integrated dual charge-pump circuit enabling operation from a single 3V to 5.5V supply without external negative voltage generation.
• Provides ±15kV IEC electrostatic discharge (ESD) protection on all serial-port connection pins, including ground.
• Meets or exceeds TIA/EIA-232-F and ITU V.28 standards for electrical interface requirements.
• Accepts 5V logic inputs while operating from a 3.3V supply, ensuring compatibility with various logic families.

Applications

• Industrial PCs
• Wired networking equipment
• Data center and enterprise computing systems

Procurement Notes

Verify the specific suffix 'DW' corresponds to the SOIC-16 package variant required for your design. Confirm that the component meets the -40°C to +85°C industrial temperature grade specifications. Ensure the ordering documentation aligns with the automotive qualification status if applicable to your system requirements.

Selection Notes

Select this component when a dual-channel RS-232 interface is needed with robust ESD protection and low standby current. It serves as a direct replacement for standard catalog versions where industrial temperature ranges are mandatory. Consider pin-compatible alternatives like the SNx5C3232 series if higher data rates up to 1Mbit/s are required for future scalability.

Part Context

This part belongs to the MAX3232 family of multichannel RS-232 line drivers and receivers. The 'E' designation indicates the extended temperature range (-40°C to +85°C), distinguishing it from commercial variants. The 'DW' suffix specifies the wide SOIC surface-mount package, facilitating automated assembly and compact PCB layouts.

Replacement Considerations

The SNx5C3232 series offers pin-compatible high-speed alternatives supporting 1Mbit/s data rates. Catalog versions such as MAX3232CDW provide similar functionality but may differ in temperature ratings or ESD protection levels depending on the specific suffix.