MAX222CDWR

Overview

The MAX222CDWR is a dual RS-232 line driver and receiver manufactured by Texas Instruments, designed for serial communication applications. It operates within a supply voltage range of 4.5 V to 5.5 V and supports data rates up to 120 kbps. The device features two drivers and two receivers, providing full-duplex communication capabilities. It incorporates ±15-kV ESD protection on all pins to enhance reliability in harsh environments. The component is housed in a 16-pin SOIC package and functions reliably across an operating temperature range of 0°C to +70°C.

Feature Summary

• Integrated ±15-kV ESD protection on all pins for enhanced robustness
• Dual driver and receiver configuration supporting full-duplex communication
• Single 5-V power supply operation with integrated charge pump

Applications

• Industrial control systems requiring reliable serial communication
• Modem interfaces and portable instruments
• Point-of-sale (POS) terminals and barcode scanners

Procurement Notes

Verify the specific suffix 'CDWR' corresponds to the commercial temperature grade and tape-and-reel packaging format. Confirm RoHS compliance status as per the latest manufacturer documentation. Ensure the ordering part number matches the required package type and lead finish specifications before finalizing procurement orders.

Selection Notes

Select this component when a dual-channel RS-232 transceiver with high ESD immunity is required. It is suitable for designs needing single-supply operation without external inductors. Compare against similar devices like the MAX202 if different pin configurations or higher data rate requirements are necessary for the specific application design.

Part Context

This part belongs to the MAX2xx series of multichannel RS-232 drivers and receivers from Texas Instruments. These components are widely used in legacy serial communication interfaces. The CDWR designation indicates a specific package variant and manufacturing lot code within the broader MAX222 product family.

Replacement Considerations

The MAX202CDWR is a direct functional substitute within the same series. Verify pin compatibility and electrical specifications before substitution. Other compatible alternatives include the TRS202CDWR, provided interface standards and performance metrics align with the original design requirements.