MAX3232ECTE+T

Overview

The MAX3232ECTE+T is a multichannel RS-232 line driver and receiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single 3V to 5.5V supply and supports data rates up to 250kbit/s. The device integrates two drivers and two receivers with a dual charge-pump circuit requiring four external 0.1µF capacitors. It features ±15kV IEC ESD protection on serial-port connection pins, including ground. The component meets TIA/EIA-232-F and ITU v.28 standards and accepts 5V logic inputs while powered by a 3.3V supply.

Feature Summary

• Dual charge-pump circuit enables true RS-232 performance using only four small external capacitors
• Integrated ±15kV IEC electrostatic discharge protection on all serial-port connection pins
• Low standby current consumption of 300µA typical for battery-powered applications
• Pin-compatible with alternative high-speed pin-compatible devices

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type, temperature range, and tape-and-reel specifications. Confirm RoHS compliance status and lead finish details directly from the latest datasheet revision or packaging addendum provided by the supplier.

Selection Notes

Select this component when designing systems requiring robust RS-232 communication with integrated ESD protection. Ensure the application voltage falls within the 3V to 5.5V range and that the PCB layout accommodates the required four external capacitors for the charge pump circuit. Verify thermal requirements for the TSSOP-16 package in enclosed environments.

Part Context

This part belongs to the MAX3232 family of low-power RS-232 transceivers. It is functionally similar to the standard MAX3232 but includes automotive qualification (MAX3232E-Q1) and enhanced ESD protection. It serves as a bridge between microcontrollers and serial connectors in industrial and commercial environments.

Replacement Considerations

The SNx5C3232 is an alternative high-speed pin-compatible device supporting 1Mbit/s. Standard catalog versions like MAX3232E may be considered if automotive qualification is not required.