MAX243CWE+

Overview

The MAX243CWE+T is a +5V-powered, multichannel RS-232 driver and receiver integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a commercial temperature range of 0°C to +70°C and utilizes a 16-pin SOIC-Wide package. The device supports data rates up to 200 kbps with a typical supply current of 10 mA at 5 V. It features two drivers and two receivers without shutdown functionality. Electrical specifications include transmitter output voltage swings of ±5 V to ±8 V and receiver input operating ranges of ±30 V.

Feature Summary

• Integrated charge pump circuitry eliminates the need for external bipolar power supplies
• Enables single-supply operation from a +5V source
• Designed for EIA/TIA-232E and V.28/V.24 communication interfaces

Applications

• Interface translation between TTL/CMOS logic and RS-232 standards
• Multidrop RS-232 network connections
• Portable diagnostics equipment requiring low-power serial communication

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for obsolescence notices as the part may be discontinued. Ensure the ordering suffix matches the required packaging format before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring standard RS-232 signaling without complex power management. Verify that the 200 kbps data rate meets application requirements. Ensure the 16-pin SOIC-Wide footprint aligns with the PCB layout constraints and thermal dissipation capabilities of the target enclosure.

Part Context

This device belongs to the MAX220–MAX249 family of line drivers and receivers. These components are engineered to provide full RS-232 functionality using only a single +5V supply. The family offers various pin counts and feature sets to accommodate different interface complexity levels in embedded systems.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.