MAX3223CDWR

Overview

The MAX3223CDWR is a fully compliant RS-232 transceiver manufactured by Texas Instruments, designed for 3V to 5.5V power supplies. It integrates two drivers and two receivers in a single 20-pin SOIC package. The device supports data rates up to 250kbps with a receiver hysteresis of 500mV. Operating within a commercial temperature range of 0°C to 70°C, it features surface-mount installation. The component complies with RoHS3 standards and carries an EAR99 classification.

Feature Summary

• Integrates dual independent drivers and receivers for full-duplex communication
• Operates directly from single 3V to 5.5V power supply rails
• Includes internal charge pump circuitry for RS-232 voltage generation
• Provides EIA/TIA-232-F protocol compliance

Applications

• Industrial control systems requiring serial communication
• Portable battery-powered equipment utilizing low-voltage operation
• Modem interfaces and data transmission modules
• Point-of-sale terminals and barcode scanners

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure correct packaging and temperature grade. Confirm that the 20-SOIC footprint matches the target PCB layout. Check for any recent Product Change Notifications regarding material or manufacturing site updates before finalizing procurement orders.

Selection Notes

Select this component when a dual-channel RS-232 interface is required in a compact surface-mount form factor. Ensure the application environment remains within the specified 0°C to 70°C operating range. Verify that the 250kbps maximum data rate meets the system's throughput requirements and that the 3V to 5.5V supply voltage aligns with the available power rails.

Part Context

This part belongs to the MAX3223 family of multichannel RS-232 line drivers and receivers. It shares functional similarities with other devices in the series but differs in package type and specific electrical characteristics. The CDWR suffix indicates a specific tape-and-reel packaging configuration suitable for automated assembly processes.

Replacement Considerations

The MAX3223EIDBR is a documented alternative offering extended industrial temperature ratings and higher data speeds in an SSOP-20 package. Verify pin compatibility and thermal performance differences before substitution.