MAX222CDW

Overview

The MAX222CDW is a dual RS-232 transceiver manufactured by Texas Instruments, designed for low-power applications. It features two drivers and two receivers, supporting data rates up to 120 kbps. The device operates from a single +5 V supply and includes internal charge pumps that generate the required positive and negative voltages for RS-232 communication without external components. It is housed in a 16-pin SOIC wide package.

Feature Summary

• Integrated charge pump eliminates need for external capacitors
• Single +5 V supply operation reduces system complexity
• Low power consumption suitable for battery-powered devices

Applications

• Portable computers and laptops
• Battery-operated instruments
• Modems and fax machines

Procurement Notes

Verify the specific suffix 'CDW' corresponds to the 16-pin SOIC wide package and commercial temperature range (-40°C to +85°C). Confirm manufacturer documentation for pinout compatibility with existing designs. Ensure sourcing channels provide genuine Texas Instruments products to avoid counterfeit risks.

Selection Notes

Select this component when designing systems requiring dual RS-232 channels with minimal external passive components. Consider the 120 kbps speed limit and single-supply constraint. Evaluate thermal performance within the specified operating temperature range for the chosen application environment.

Part Context

This part belongs to the MAX22x family of RS-232 transceivers. It offers a compact solution compared to older multi-supply designs. The CDW variant specifically denotes the plastic small-outline integrated circuit package suitable for surface-mount assembly processes.

Replacement Considerations

Compatible substitutes include the MAX222CPE or MAX222EPE variants, which share identical electrical characteristics but differ in package type or temperature grade. Verify pin compatibility before substitution.