MAX3232ECDWR

Overview

The MAX3232ECDWR is an automotive-grade RS-232 transceiver manufactured by Texas Instruments. It operates on a single 3V to 5.5V supply and supports data rates up to 250kbit/s with a maximum slew rate of 30V/µs. The device integrates two drivers and two receivers, featuring ±15kV IEC ESD protection across all serial port pins including ground. It requires four external capacitors for the dual charge pump circuit. Designed for industrial environments, it functions within a temperature range of -40°C to +85°C and utilizes a TSSOP-16 (PW) package.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards
• Integrated ±15kV IEC ESD protection on all RS-232 lines
• Low standby current consumption typical of 300μA
• Compatible with 5V logic inputs while operating from a 3.3V supply

Applications

• Industrial PCs
• Wired networking equipment
• Data center and enterprise computing systems
• Battery-powered portable devices

Procurement Notes

Verify that the specific ordering suffix matches the required automotive grade and packaging configuration. Confirm the component meets AEC-Q100 reliability requirements for your target application environment. Ensure the supplier provides traceability documentation consistent with automotive quality management standards.

Selection Notes

Select this component when automotive reliability and robust ESD protection are critical. It serves as a direct replacement for standard commercial RS-232 transceivers in harsh industrial settings. Consider the SNx5C3232 if higher data rates exceeding 250kbit/s are required while maintaining pin compatibility.

Part Context

This part belongs to the MAX3232 family of multichannel RS-232 line drivers and receivers. The 'E' designation indicates an extended industrial temperature range (-40°C to +85°C). The 'Q1' suffix denotes automotive qualification status, distinguishing it from standard commercial variants within the same functional family.

Replacement Considerations

The SNx5C3232 is a confirmed high-speed pin-compatible alternative offering 1Mbit/s operation. Standard catalog versions like MAX3232IDWR provide identical electrical performance but lack the specific automotive qualification certification.