MAX3223ECPWR

Overview

The MAX3223ECPWR 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 ±15-kV electrostatic discharge (ESD) protection on all RS-232 bus pins. The component includes an automatic shutdown feature that reduces supply current to typically 1 µA when no valid signal is present. It is housed in a TSSOP-20 package designed for surface-mount installation.

Feature Summary

• Integrated ±15-kV ESD protection on RS-232 bus pins for enhanced reliability
• Automatic shutdown mode significantly reduces power consumption during idle periods
• Supports full-duplex data transmission with dual drivers and receivers

Applications

• Portable equipment requiring low-power serial communication
• Industrial control systems utilizing RS-232 interfaces
• Modems and handheld terminals

Procurement Notes

Verify the specific suffix 'CPWR' against the official datasheet to confirm the TSSOP-20 package and commercial temperature grade. Ensure compatibility with existing PCB footprints and reflow soldering profiles. Confirm availability status as product lifecycle stages may affect long-term sourcing.

Selection Notes

Select this component for applications requiring robust ESD protection and low standby power. Compare performance metrics such as data rate and operating voltage range against alternative transceivers. Verify that the TSSOP-20 package dimensions fit the mechanical constraints of the target design.

Part Context

This part belongs to the MAX3223E family of RS-232 transceivers. It shares functional similarities with other devices in the series but differs in packaging and temperature specifications. The 'E' designation indicates extended industrial temperature range capabilities, while 'CPWR' specifies the tape-and-reel TSSOP-20 variant.

Replacement Considerations

Direct pin-to-pin replacements include the MAX3222ECPWR and TRS3223ECPWR. Verify electrical parameters and package compatibility before substitution.