MAX3232ECDR

Overview

The MAX3232ECDR is an automotive-grade, multichannel RS-232 line driver and receiver manufactured by Texas Instruments. It integrates two drivers, two receivers, and a dual charge-pump circuit within a 16-pin TSSOP (PW) package. The device operates on a single 3V to 5.5V supply and supports data signaling rates up to 250kbit/s with a maximum slew rate of 30V/μs. It features ±15kV IEC ESD protection across all pins, including ground. Typical standby current is 300μA, requiring four external 0.1μF capacitors for operation.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards
• Integrated dual charge pump enabling single-supply operation from 3V to 5.5V
• Robust ±15kV IEC electrostatic discharge protection on serial port connection pins

Applications

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

Procurement Notes

Verify the specific ordering suffix against the official TI Package Option Addendum to confirm the exact package type, lead finish, and moisture sensitivity level. Ensure the component status is listed as Active Production before procurement. Confirm that the required operating temperature range aligns with the -40°C to +85°C specification defined for the industrial grade variant.

Selection Notes

Select this component when automotive reliability and high ESD immunity are required for RS-232 interfaces. It serves as a pin-compatible alternative to standard catalog versions but includes enhanced ruggedness. Verify that the system logic inputs can tolerate 5V levels even when powered by a 3.3V supply, as specified in the electrical characteristics.

Part Context

This part belongs to the MAX3232E-Q1 family, which represents the automotive-qualified version of the standard MAX3232 series. While functionally identical to the commercial MAX3232E, it meets stricter automotive quality and reliability standards. It shares the same internal architecture and pinout as other variants in the broader MAX3232 product line.

Replacement Considerations

The SNx5C3232 is documented as a pin-compatible high-speed alternative offering 1Mbit/s data rates. Standard catalog MAX3232E parts may be used if automotive qualification is not strictly required, though ESD protection specifications should be verified.