MAX3222ECPW

Overview

The MAX3222ECPW is a dual RS-232 transceiver manufactured by Texas Instruments, designed for full-duplex communication. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 500 kb/s. The device integrates two drivers and two receivers in a single package. Key electrical specifications include a maximum operating current of 1 mA and an ESD protection rating of 15 kV. It functions reliably across an extended temperature range from -40°C to +85°C. The component utilizes a TSSOP-20 surface-mount package and includes a shutdown feature for power management.

Feature Summary

• Integrates dual line drivers and receivers for full-duplex RS-232 communication
• Provides robust electrostatic discharge protection rated at 15 kV
• Features low power consumption with integrated shutdown control

Applications

• Industrial control systems requiring reliable serial communication
• Portable instrumentation and battery-powered devices
• Modems and facsimile machines

Procurement Notes

Verify the specific suffix 'CPW' against the manufacturer's official documentation to confirm the TSSOP-20 package type and commercial/industrial temperature grade. Ensure that the ordering information matches the exact part number required for your design, as suffixes define packaging and performance variations. Cross-reference the datasheet revision date to ensure compliance with current standards.

Selection Notes

Select this component when a dual-channel RS-232 interface is needed with low quiescent current. The 3 V to 5.5 V operating range allows compatibility with both 3.3 V and 5 V logic systems. The 500 kb/s data rate is suitable for most standard serial applications. Consider the TSSOP-20 package dimensions for PCB layout constraints and thermal requirements.

Part Context

This part belongs to the MAX3222E series of multichannel RS-232 line drivers and receivers. The series is characterized by its ability to operate from a single power supply while generating the necessary positive and negative voltages for RS-232 signaling. The 'E' designation typically indicates enhanced features such as higher ESD protection compared to earlier generations.

Replacement Considerations

The MAX3222EIDW is a pin-compatible alternative offering the same functional specifications but housed in a SOIC-20 package. Designers must verify footprint compatibility before substitution. Other members of the MAX3222 family may share similar electrical characteristics but differ in package style or temperature range.