MAX3232ECDB

Overview

The MAX3232ECDB is an automotive-grade RS-232 transceiver manufactured by Texas Instruments. It integrates two line drivers, two line receivers, and a dual charge-pump circuit within a 16-pin SSOP package. The device operates on a single 3V to 5.5V supply and supports data signaling rates up to 250kbit/s with a maximum driver output slew rate of 30V/μs. It provides ±15kV IEC ESD protection on serial-port connection pins, including ground. The typical standby current is 300μA, requiring four external capacitors for the charge pump operation.

Feature Summary

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

Applications

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

Procurement Notes

Verify the specific suffix 'CDB' against the manufacturer's official orderable part list to confirm availability and exact packaging specifications. Ensure the component meets the required automotive reliability standards for the intended application environment before finalizing procurement.

Selection Notes

Select this component when designing interfaces that require robust ESD protection and automotive compliance. Verify that the system power supply falls within the 3V to 5.5V range and that the required data rate does not exceed 250kbit/s. Confirm that the SSOP-16 package dimensions fit the target PCB layout constraints.

Part Context

This device belongs to the MAX3232 family of multichannel RS-232 line drivers and receivers. The 'E' designation indicates extended temperature performance, while the '-Q1' suffix denotes automotive qualification. The 'CDB' suffix specifies the commercial temperature grade variant housed in an SSOP-16 package.

Replacement Considerations

The SNx5C3232 series is identified as a pin-compatible alternative offering higher data rates up to 1Mbit/s. Catalog versions such as the MAX3232E may be considered if automotive qualification is not strictly required.