MAX3232EIDR

Overview

The MAX3232EIDR is a Texas Instruments RS-232 transceiver featuring two drivers and two receivers. It operates on a single 3V to 5.5V supply with typical standby current of 300µA. The device supports data rates up to 250kbit/s and includes ±15kV IEC ESD protection. It utilizes four external 0.1µF capacitors for its dual charge pump circuit. The component is housed in a 16-pin SOIC package and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Dual charge pump architecture enabling operation from a single low-voltage supply
• Integrated electrostatic discharge protection exceeding standard serial port requirements
• Logic input compatibility allowing 5V signaling with 3.3V power supplies

Applications

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

Procurement Notes

Verify the specific suffix 'IDR' against official documentation to confirm the industrial temperature grade (-40°C to +85°C) and SOIC-16 surface mount packaging. Ensure the ordering part number matches the exact manufacturer designation to avoid confusion with automotive or extended temperature variants.

Selection Notes

Select this component when designing asynchronous communication interfaces requiring full-duplex RS-232 signaling. It is suitable for applications needing robust ESD protection and low power consumption. Verify that the system logic levels align with the specified input voltage thresholds for both 3.3V and 5V configurations.

Part Context

This device belongs to the MAX3232 family of multichannel RS-232 line drivers and receivers. It provides electrical interfacing between asynchronous controllers and serial connectors. The series is characterized by low supply current and minimal external component requirements, facilitating compact PCB layouts.

Replacement Considerations

The SNx5C3232 is documented as a pin-compatible alternative offering higher speed capabilities.