MAX3238IPW

Overview

The MAX3238IPW is a multichannel RS-232 line driver and receiver manufactured by Texas Instruments. It operates on a single power supply ranging from 3 V to 5.5 V. The device integrates five drivers and three receivers, supporting full-duplex communication with a data rate of up to 250 kbps. It features integrated charge pumps that require only external 0.1 µF capacitors. The component provides ±15-kV electrostatic discharge (ESD) protection on the RS-232 transceiver lines according to Human Body Model standards. It is housed in a 28-pin TSSOP package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Multichannel architecture providing five independent drivers and three receivers for complex serial communication interfaces.
• Integrated ESD protection rated at ±15 kV on all RS-232 transceiver lines to safeguard against static discharge events.
• Single-supply operation capability allowing compatibility with standard 3-V and 5-V logic systems without requiring negative voltage rails.

Applications

• Industrial control systems requiring robust serial communication interfaces.
• Portable instrumentation and medical devices utilizing battery-powered 3-V or 5-V supplies.
• Data acquisition systems connecting microcontrollers to RS-232 peripherals.

Procurement Notes

Verify the specific suffix 'IPW' corresponds to the 28-TSSOP package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation. Ensure the ordering part number matches the required temperature grade and packaging format for integration into production workflows.

Selection Notes

Select this component when multiple RS-232 channels are needed within a single integrated circuit. It serves as a suitable alternative to discrete solutions or lower-channel-count transceivers. Consider the 250 kbps speed limit and 28-pin footprint constraints during PCB layout planning.

Part Context

This device belongs to the MAX323x family of low-power RS-232 transceivers. It shares functional similarities with the MAX3237 but offers increased channel density. The IPW suffix specifically denotes the plastic thin-shrink small-outline package with wide body dimensions suitable for surface-mount assembly.

Replacement Considerations

The MAX3238EIPWR is a verified equivalent part number representing the same electrical specifications and pinout configuration. Verify package compatibility before substitution.