MAX223CWI+

Overview

The MAX223CWI+ 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 full duplex communication capability. It requires a single +5V supply voltage, drawing 15 mA during normal operation. The component supports a shutdown mode for power reduction and functions reliably across an operating temperature range of 0°C to +70°C.

Feature Summary

• Eliminates the need for bipolar ±12V supplies through integrated charge-pump circuitry
• Features 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 network implementations
• Portable diagnostics equipment requiring compact form factors

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type and temperature grade. Confirm RoHS compliance status directly with the supplier or manufacturer before procurement. Ensure the component matches the required pinout and electrical specifications for the target application design.

Selection Notes

Select this component when designing systems that require multiple RS-232 channels without external charge-pump components. Consider the SO-Wide-28 package dimensions for layout constraints. Evaluate the 120 kb/s data rate limit against application requirements. Verify thermal dissipation capabilities within the specified 0°C to +70°C operating range.

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 configurations of drivers and receivers in different packages. The MAX223 variant specifically provides four drivers and five receivers to support complex serial communication topologies.

Replacement Considerations

The MAX223CWI is a leaded equivalent of the MAX223CWI+. Other family members like the MAX241CWI+ offer similar functionality but may differ in receiver count or control pin configurations.