MAX3223EIPWR

Overview

The MAX3223EIPWR 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 and supports data rates up to 500 kb/s. The device features two drivers and two receivers, providing full-duplex communication capabilities. It incorporates ±15-kV electrostatic discharge (ESD) protection on all RS-232 lines. The component utilizes small external 0.1-F capacitors for charge pump functionality. It is housed in a TSSOP-20 package and includes an automatic shutdown feature to minimize power consumption during idle periods.

Feature Summary

• Integrated ±15-kV ESD protection on all RS-232 transceiver lines
• Automatic shutdown mode reduces quiescent current to less than 1 µA
• Requires only four small 0.1-F external capacitors for operation
• Supports standard RS-232 signaling with full-duplex transmission

Applications

• Portable equipment requiring low-power serial communication
• Industrial control systems with harsh electrical environments
• Modems and handheld terminals
• Point-of-sale (POS) systems and barcode scanners

Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with existing PCB footprint designs for the TSSOP-20 configuration. Cross-reference the revision level to guarantee functional equivalence with current production units.

Selection Notes

Select this component when designing systems that require robust ESD protection alongside low standby power consumption. It is suitable for applications powered by single 3-V or 5-V supplies where space constraints limit capacitor size. Consider the 500-kb/s data rate limit when evaluating high-speed serial interface requirements.

Part Context

This part belongs to the MAX3223E family of multichannel RS-232 transceivers. It shares architectural similarities with other devices in the series but is distinguished by its specific pinout and packaging options. The IPWR suffix indicates a specific reel-based packaging variant intended for automated surface-mount assembly processes.

Replacement Considerations

Direct substitutes include the MAX3223EIDBR and MAX3223EIDW from Texas Instruments, which offer identical electrical characteristics in SSOP-20 packages. Verify pin-to-pin compatibility before replacing the TSSOP-20 package with alternative form factors.