MAX223EWI+

Overview

The MAX223EWI+ is a +5V-powered, multichannel RS-232 transceiver from the MAX220–MAX249 family. It integrates four drivers and five receivers within a single SO-Wide-28 package. The device operates at data rates up to 120 kb/s with a propagation delay of 40 µs. It requires a single +5V supply (4.5V to 5.5V) and draws 15 mA during normal operation. An integrated shutdown mode reduces power consumption to 50 µA maximum. The component supports an industrial temperature range from -40°C to +85°C.

Feature Summary

• Eliminates the need for bipolar ±12V supplies through integrated charge-pump circuitry that enables single-supply operation.
• Includes internal capacitors to minimize printed circuit board space requirements.
• Provides a low-power shutdown mode to reduce overall system power consumption.

Applications

• Interface translation between TTL/CMOS logic and RS-232 standards
• Multidrop RS-232 communication networks
• Portable diagnostics equipment

Procurement Notes

Verify the specific suffix 'EWI+' against official manufacturer documentation to confirm the exact package type and temperature rating. Confirm RoHS compliance status directly with the supplier or manufacturer datasheet before procurement. Ensure the ordering information matches the required electrical specifications for your design.

Selection Notes

Select this component when designing systems requiring multiple RS-232 channels without external voltage inversion components. It is suitable for applications where PCB area is limited due to its integrated capacitor design. Verify that the 120 kb/s data rate meets the communication speed requirements of the target interface.

Part Context

This part belongs to the MAX220–MAX249 family of line drivers and receivers designed for EIA/TIA-232E and V.28/V.24 interfaces. The family offers various channel configurations and packages to accommodate different interface density needs while maintaining compatibility with standard RS-232 signaling levels.

Replacement Considerations

The MAX223CWI+ serves as a commercial-grade alternative within the same family, offering identical functionality but with a restricted operating temperature range of 0°C to +70°C compared to the extended range of the MAX223EWI+.