MAX3222EIDWR

Overview

The MAX3222EIDWR is a multichannel RS-232 line driver and receiver manufactured by Texas Instruments. It operates within a supply voltage range of 3 V to 5.5 V, supporting both 3.3 V and 5 V logic systems. The device features two drivers and two receivers for full-duplex communication with a data rate capability of 500 kb/s. It incorporates a shutdown mode that reduces operating supply current to approximately 1 µA. The component provides 15 kV electrostatic discharge (ESD) protection on all RS-232 lines and is housed in a 20-pin TSSOP package suitable for surface-mount installation.

Feature Summary

• Integrated charge pump eliminates the need for external capacitors
• High ESD protection rating on all signal lines
• Low power consumption with dedicated shutdown control

Applications

• Portable equipment requiring RS-232 connectivity
• Industrial control systems with limited power budgets
• Modem and communications interface circuits

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and tape-and-reel configuration. Confirm RoHS compliance status through the manufacturer's latest datasheet or environmental purchase order information. Ensure the ordering part number matches the required temperature grade and packaging format for production integration.

Selection Notes

Select this component when a dual-channel RS-232 transceiver is needed with low quiescent current and high ESD immunity. Compare against the MAX3222EIDW variant if tube packaging is preferred over reel packaging. Consider higher-speed alternatives like the TRSF3232 series if data rates exceeding 500 kb/s are required for the application.

Part Context

This part belongs to the MAX3222E family of multichannel RS-232 transceivers from Texas Instruments. The family shares core electrical characteristics but differs in package options such as SOIC-20 or TSSOP-20. The 'IDWR' suffix specifically denotes the industrial temperature range and the TSSOP-20 tape-and-reel packaging format.

Replacement Considerations

The MAX3222EIDW serves as a direct functional substitute differing only in packaging format. Other compatible devices include the MAX3222ECPE and MAX3222ECPW, which offer alternative pin-compatible packages within the same electrical specification family.