MAX3232EEUE+T

Overview

The MAX3232EEUE+T is a low-power, true RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It features two drivers and two receivers operating from a single 3V to 5.5V supply voltage. The device incorporates dual charge-pump circuitry requiring only four external 0.1µF capacitors. It supports data rates up to 250kbit/s with a maximum slew rate of 30V/µs. Supply current is typically 1mA at VCC = 3.3V or 5V. The component provides ±15kV IEC ESD protection on serial-port connection pins and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Integrated dual charge-pump circuitry for generating RS-232 voltages from a single low-voltage supply
• Enhanced electrostatic discharge protection rated at ±15kV IEC standard on interface pins
• Full duplex communication capability with independent driver and receiver channels
• Low standby power consumption suitable for battery-operated systems

Applications

• Industrial PCs and embedded control systems
• Wired networking equipment and data center connections
• Battery-powered portable devices and handheld instruments

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and tape-and-reel specifications. Ensure that the intended application environment falls within the specified electrical limits and thermal ratings defined in the datasheet. Confirm compliance with relevant regional regulatory standards prior to integration into final products.

Selection Notes

Select this component when designing interfaces between microcontrollers and RS-232 ports requiring low power consumption. Verify that the system supply voltage remains within the 3V to 5.5V operational range. Ensure adequate decoupling capacitors are placed near the charge pump pins to maintain signal integrity at high data rates.

Part Context

This device belongs to the MAX3232E series of RS-232 line drivers and receivers. It serves as a bridge between TTL/CMOS logic levels and RS-232 voltage levels. The EE variant specifically denotes an enhanced ESD protection rating compared to standard versions. It is widely used in legacy serial communication interfaces where robustness against static discharge is critical.

Replacement Considerations

The SNx5C3232 is identified as a pin-compatible alternative offering higher speed capabilities. Standard catalog versions such as MAX3232EIPWRQ1 may be considered if automotive qualification is not required.