MAX3222EIDW

Overview

The MAX3222EIDW 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, enabling full-duplex communication at data rates up to 500 kb/s. It incorporates a shutdown mode that reduces operating power consumption to approximately 1 mA. The component provides robust electrostatic discharge protection rated at 15 kV. It is housed in a 20-pin SOIC package and functions reliably across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Integrated charge pump eliminates the need for external capacitors
• Shutdown pin enables low-power standby operation
• High ESD protection ensures signal integrity in harsh environments

Applications

• Industrial control systems requiring serial communication
• Portable battery-powered instrumentation
• Modems and fax machines
• Point-of-sale terminals

Procurement Notes

Verify the specific suffix IDW confirms the SOIC-20 package and industrial temperature grade. Confirm RoHS compliance status through official documentation as manufacturing processes evolve. Check for end-of-life notifications or discontinuance alerts prior to finalizing procurement decisions to ensure long-term supply stability.

Selection Notes

Select this component when dual-channel RS-232 communication is required with low power constraints. Ensure the design accommodates the 20-pin SOIC footprint and thermal requirements for the -40°C to +85°C range. Verify that the 500 kb/s data rate meets system timing specifications and that the 3 V to 5.5 V supply range aligns with available power rails.

Part Context

This part belongs to the MAX3222E family of multichannel RS-232 transceivers. It shares functional similarities with other devices in the series but differs in package type and specific electrical characteristics. The IDW suffix denotes the small-outline integrated circuit package variant suitable for surface-mount assembly techniques.

Replacement Considerations

Consider the MAX3222ECPWR for TSSOP-20 packaging needs or the MAX3222IDW for commercial temperature grade applications. Verify pin compatibility and electrical parameters before substituting.