MAX3223CDBR

Overview

The MAX3223CDBR is a multichannel RS-232 line driver and receiver manufactured by Texas Instruments. It operates from a single 3 V to 5.5 V power supply and features two drivers and two receivers for full-duplex communication. The device supports data rates up to 250 kb/s with a typical operating supply current of 1 mA. It utilizes SSOP-16 surface-mount packaging and includes integrated charge pumps requiring only external 0.1 µF capacitors. The component provides ±15 kV electrostatic discharge (ESD) protection on RS-232 lines, ensuring robust signal integrity in industrial environments.

Feature Summary

• Multichannel architecture supporting simultaneous transmission and reception
• Integrated charge pump minimizing external component count
• High ESD tolerance protecting connected serial ports
• Low-power operation suitable for battery-driven systems

Applications

• Industrial control systems requiring reliable serial communication
• Portable equipment utilizing battery-powered microcontrollers
• Modems and fax machines needing standard RS-232 interfacing
• Point-of-sale terminals and barcode scanners

Procurement Notes

Verify the specific suffix 'CDBR' against the manufacturer's official datasheet to confirm package type and temperature range. Ensure compatibility with existing PCB footprints for SSOP-16 components. Cross-reference RoHS compliance status with current regulatory requirements before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring dual-channel RS-232 connectivity within a compact footprint. Consider the 250 kb/s speed limit for applications not demanding higher baud rates. Evaluate the 3 V to 5.5 V input voltage range to ensure alignment with the system's primary power rail without additional regulation.

Part Context

This part belongs to the MAX3223 family of multichannel RS-232 transceivers designed for low-voltage applications. It serves as a bridge between TTL/CMOS logic levels and RS-232 voltage standards. The device simplifies interface design by integrating necessary voltage conversion circuitry internally.

Replacement Considerations

The MAX3223IDBR is an industrial-grade alternative offering extended temperature ranges. Verify pinout compatibility and electrical specifications before substituting. Consult official replacement guides to ensure functional equivalence in critical designs.