MAX3232ECPWR

Overview

The MAX3232ECPWR is a dual driver and receiver RS-232 transceiver manufactured by Texas Instruments. It operates on a single 3V to 5.5V supply and supports data rates up to 250kbps with a maximum slew rate of 30V/μs. The device integrates a dual charge pump circuit requiring four external capacitors. It features ±15kV IEC ESD protection on serial port connection pins, including ground. The component utilizes a 16-pin TSSOP package (PW) measuring 5mm x 6.4mm. Recommended operating conditions specify a supply voltage range of 3V to 5.5V and an operating temperature range of 0°C to 70°C.

Feature Summary

• Integrates two line drivers and two line receivers for full-duplex communication
• Provides ±15kV IEC electrostatic discharge protection on all serial port connection pins
• Operates from a single 3V to 5.5V power supply using a dual charge pump circuit
• Accepts 5V logic inputs while powered by a 3.3V supply

Applications

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

Procurement Notes

Verify the specific suffix 'CPWR' against the official datasheet to confirm the commercial temperature grade and TSSOP packaging. Ensure the application environment remains within the specified 0°C to 70°C operating range. Confirm that the system design accommodates the required four external capacitors for the internal charge pump circuitry as detailed in the typical application schematics.

Selection Notes

Select this component when a standard RS-232 interface is required for commercial-grade applications. It is suitable for systems needing robust ESD protection without external components. Consider alternative industrial-grade versions if the operating temperature must extend below 0°C or above 70°C. Verify compatibility with the host controller's logic voltage levels before finalizing the design.

Part Context

This part belongs to the MAX3232 family of multichannel RS-232 line drivers and receivers. The 'E' designation indicates enhanced ESD protection capabilities compared to non-E variants. The 'C' suffix denotes the commercial temperature rating, distinguishing it from the 'I' suffix used for industrial temperature ranges. The 'PWR' suffix identifies the specific surface-mount TSSOP package configuration.

Replacement Considerations

The SNx5C3232 series is identified as a pin-compatible high-speed alternative supporting 1Mbit/s data rates. Other catalog versions such as MAX3232EIPWR offer similar functionality but may differ in temperature specifications.