MAX3223CPWR

Overview

The MAX3223CPWR is a dual transmitter and receiver RS-232 interface integrated circuit manufactured by Texas Instruments. It operates from a single 3 V to 5.5 V power supply and supports data rates up to 500 kb/s in full-duplex mode. The device features two drivers and two receivers with a propagation delay of 150 ns. It includes shutdown functionality, reducing operating current to 1 mA and quiescent current to 50 nA. ESD protection is rated at 15 kV. The component is housed in a TSSOP-20 package suitable for surface mount installation.

Feature Summary

• Provides reliable RS-232 signal conversion between TTL/CMOS logic levels and serial port signals
• Integrates ±15 kV electrostatic discharge protection on all RS-232 lines for enhanced durability
• Supports low-power operation through dedicated shutdown control pins

Applications

• Industrial equipment serial communication interfaces
• Embedded system modem connections
• Portable battery-powered devices requiring low standby current

Procurement Notes

Verify the specific suffix 'PWR' against the manufacturer's official documentation to confirm the exact tape-and-reel packaging configuration and pinout compatibility. Ensure that the procurement source provides traceability for the Texas Instruments brand, as counterfeit components may exhibit incorrect voltage tolerances or missing ESD protection structures.

Selection Notes

Select this component when a dual-channel RS-232 transceiver is required for systems operating within the 3 V to 5.5 V range. The TSSOP-20 package is appropriate for applications needing compact surface-mount solutions. Consider the 500 kb/s data rate limit and ensure it meets the timing requirements of the target serial protocol before finalizing the design.

Part Context

This part belongs to the MAX3223 family of multichannel RS-232 line drivers and receivers. It is functionally compatible with other industry-standard dual transceivers but differs in package type and specific electrical characteristics. The 'CPWR' designation indicates a commercial temperature range variant in a plastic wave leadframe package.

Replacement Considerations

Publicly confirmed substitute part numbers include TRS3223ECPWR. Verify pin-to-pin compatibility and electrical specifications before substitution.