MAX3232IPWR

Overview

The MAX3232IPWR is a dual driver and dual receiver RS-232 transceiver manufactured by Texas Instruments. It operates on a single 3 V to 5.5 V power supply and supports data rates up to 250 kb/s. The device features full-duplex communication within a 16-pin TSSOP package. Key electrical specifications include a typical operating supply current of 1 mA, an ESD protection rating of 15 kV, and an operating temperature range from -40°C to +85°C. It utilizes internal charge pumps requiring four external 0.1 μF capacitors.

Feature Summary

• Integrates two drivers and two receivers for full-duplex serial communication
• Provides ±15 kV electrostatic discharge (ESD) protection on RS-232 bus terminals
• Operates with a single 3 V to 5.5 V power supply
• Includes internal charge pumps to generate required voltage levels

Applications

• Industrial control systems requiring reliable serial communication
• Portable battery-powered instruments and devices
• Modems and fax machines
• Printers and peripheral equipment

Procurement Notes

Verify the specific suffix IPWR confirms the TSSOP-16 surface-mount package and industrial temperature grade (-40°C to +85°C). Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets prior to procurement. Ensure component authenticity by sourcing from authorized channels to avoid counterfeit risks associated with high-volume interface ICs.

Selection Notes

Select this component when a standard 250 kb/s RS-232 interface is sufficient for the application. It is suitable for designs requiring robust ESD protection without the need for shutdown modes found in other variants. Consider alternative packages like SOIC if board space constraints differ. Verify that the 300 μA standby current meets low-power requirements if applicable.

Part Context

This part belongs to the MAX3232 family of RS-232 transceivers designed for PC and handheld communications. The 'E' suffix variant typically offers enhanced ESD protection compared to the base model. The IPWR designation specifically indicates the TSSOP-16 packaging format. This series serves as a standard solution for converting TTL/CMOS logic levels to RS-232 voltages.

Replacement Considerations

The SN65C3232E is a documented higher-speed alternative supporting 1 Mbps. For pin-compatible replacements within the same family, verify package integrity and ESD ratings. Check for automotive-grade versions like the MAX3232EIPWRQ1 if AEC-Q100 certification is required.