MAX3232ECSE+T

Overview

The MAX3232ECSE+T is a low-power, true RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It integrates two line drivers and two line receivers with a dual charge-pump circuit, enabling operation from a single 3V to 5.5V supply. The device supports data signaling rates up to 250kbit/s and features ±15kV IEC ESD protection on serial-port connection pins. It requires four external 0.1μF capacitors for the charge pump. The component operates within an extended temperature range of -40°C to +85°C and utilizes a 16-pin SOIC-Narrow (SOIC-16) surface-mount package.

Feature Summary

• Integrated dual charge-pump circuit enables full RS-232 performance using only four small external capacitors
• Provides enhanced electrostatic discharge protection rated at ±15kV IEC standard on all serial-port connection pins
• Accepts 5V logic inputs while operating with a 3.3V supply voltage
• Maintains pin compatibility with industry-standard MAX232 devices

Applications

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

Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm compliance with RoHS directives and lead-free manufacturing standards. Ensure the supplier provides valid traceability documentation for automotive-grade components if applicable. Validate that the received parts match the manufacturer's marking codes and date codes.

Selection Notes

Select this component when designing interfaces requiring robust ESD protection and low standby current in space-constrained applications. It is suitable for systems needing compatibility with legacy MAX232 footprints but requiring improved power efficiency. Consider the 250kbit/s speed limit and 300ns propagation delay for timing-sensitive designs.

Part Context

This part belongs to the MAX3232 family of RS-232 transceivers designed for low-voltage operation. It serves as a bridge between asynchronous communication controllers and serial-port connectors. The device is widely used in embedded systems where reliable serial communication is required under varying electrical noise conditions.

Replacement Considerations

MAX3232EIPWRQ1: Pin-compatible alternative in TSSOP-16 package.