MAX3223CDW

Overview

The MAX3223CDWR is a multichannel RS-232 line driver and receiver manufactured by Texas Instruments. It operates from a single 3V to 5.5V supply and supports data rates up to 250kbps. The device integrates two drivers and two receivers in a full-duplex configuration within a 20-SOIC package. It features ±15kV electrostatic discharge (ESD) protection on all RS-232 lines, ensuring robust performance in industrial environments. The component includes an AutoShutdown feature that reduces power consumption during idle periods.

Feature Summary

• Integrated ±15kV ESD protection on all RS-232 transceiver lines for enhanced reliability
• AutoShutdown function automatically powers down the device when no valid signal is present
• Single-supply operation compatible with 3V and 5V logic systems

Applications

• Industrial communication equipment requiring reliable serial data transmission
• Portable battery-powered devices utilizing low-power RS-232 interfaces
• Modems and fax machines needing full-duplex serial connectivity

Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm package type and temperature range. Ensure the ordering part number matches the required RoHS compliance status. Confirm availability through authorized distributors as lead times may vary based on manufacturing schedules.

Selection Notes

Select this component for applications requiring full-duplex RS-232 communication with integrated ESD protection. Compare the 250kbps data rate limit against system requirements. Verify that the 20-SOIC package dimensions fit the PCB layout constraints. Consider the operating temperature range of 0°C to 70°C for environmental suitability.

Part Context

This part belongs to the MAX3223 family of multichannel RS-232 transceivers. It shares functional similarities with other members like the MAX3222 but differs in channel count and pinout. The CDWR suffix indicates a commercial temperature range and tape-and-reel packaging format.

Replacement Considerations

MAX3223EIDBR is listed as a substitute option.