MAX243CWE

Overview

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

Feature Summary

• Integrates dual charge-pump circuits to generate internal ±10V supplies from a single +5V source
• Eliminates the requirement for external bipolar power supplies in standard RS-232 applications
• Provides full EIA/TIA-232E compliance for serial communication interfaces

Applications

• Interface translation between TTL/CMOS logic and RS-232 standards
• Multidrop RS-232 network connections
• Portable diagnostic equipment requiring compact serial connectivity

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required package and temperature grade. Request original datasheets and material declarations to ensure regulatory compliance before finalizing acquisition.

Selection Notes

Select this component when designing systems limited to a single +5V power rail. Ensure the application does not require low-power shutdown modes, as this variant lacks control pins. Verify that the 200 kbps speed meets the system's baud rate requirements.

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 communications. The family offers various channel counts and package options to accommodate different board space constraints and interface complexity levels.

Replacement Considerations

Consider the MAX232CWE for equivalent performance in standard RS-232 applications. Evaluate the MAX243CWE+ for lead-free RoHS compliance if environmental regulations apply.