MAX223CWI+T

Overview

The MAX223CWI+T is a +5V-powered, multichannel RS-232 transceiver designed for EIA/TIA-232E and V.28/V.24 communications interfaces. It integrates four drivers and five receivers within a single SO-Wide-28 package. The device operates on a single +5V supply, utilizing internal charge-pump circuitry to generate the required ±10V levels without external bipolar supplies. Key electrical parameters include a data rate of 120 kb/s, an operating supply voltage range of 4.5V to 5.5V, and a typical operating supply current of 15mA. The component supports a shutdown mode with a maximum current consumption of 50µA at +25°C. It functions reliably across an industrial temperature range from 0°C to +70°C.

Feature Summary

• Integrates dual charge-pump DC-DC voltage converters to eliminate the need for external bipolar power supplies.
• Features integrated capacitors that significantly reduce printed circuit board space requirements.
• Includes a dedicated shutdown control pin to minimize power consumption in standby applications.

Applications

• Interface translation between TTL/CMOS logic and RS-232 standards
• Multidrop RS-232 communication networks
• Portable diagnostic equipment requiring low-power operation

Procurement Notes

Verify the specific suffix 'C' indicates the commercial temperature range (0°C to +70°C) and 'WI' denotes the SO-Wide-28 package. Confirm the '+T' designation corresponds to reel packaging as documented by the manufacturer. Ensure the component meets RoHS compliance standards before finalizing procurement specifications.

Selection Notes

Select this component when designing systems limited to a single +5V supply source. It is suitable for applications requiring multiple serial channels where board space is constrained due to its integrated capacitor design. Verify that the 120 kb/s data rate aligns with system timing requirements and that the commercial temperature range satisfies environmental conditions.

Part Context

This part belongs to the MAX220–MAX249 family of line drivers and receivers manufactured by Analog Devices / Maxim Integrated. The family provides various configurations of drivers and receivers tailored for different channel counts and interface needs while maintaining compatibility with standard RS-232 protocols.

Replacement Considerations

The MAX223CWI is functionally compatible with other members of the MAX220-MAX249 family sharing identical pinouts and electrical characteristics. Verify package dimensions and thermal dissipation capabilities when substituting with alternative packages such as SSOP or DIP variants.