MAX233ACWP

Overview

The MAX233ACWP is a +5V-powered, multichannel RS-232 driver and receiver integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a temperature range of 0°C to +70°C and utilizes a 16-pin Wide SO package. The device features an internal dual charge-pump DC-DC voltage converter that generates ±10V from a single +5V supply, eliminating the need for external bipolar supplies. Electrical specifications include a typical VCC supply current of 10mA under no-load conditions and a maximum data rate of 116kbps. Transmitter output voltage swing reaches ±8V with a 3kΩ load, while receivers provide an input operating range of ±30V.

Feature Summary

• Integrated charge pump circuitry eliminates the need for external components or bipolar ±12V supplies
• Enables single +5V supply operation for applications where board space is critical
• Provides low-power shutdown mode reducing power dissipation to less than 5μW

Applications

• Interface Translation
• Multidrop RS-232 Networks
• Portable Diagnostics Equipment

Procurement Notes

Verify the specific suffix 'ACWP' against official manufacturer documentation to confirm the exact package type (Wide SO) and commercial temperature rating (0°C to +70°C). Ensure compatibility with existing PCB footprints for 16-pin Wide SOIC configurations before procurement.

Selection Notes

Select this component when designing systems requiring RS-232 communication without external charge pump capacitors. Verify that the required data rate does not exceed 116kbps and that the operating environment remains within the 0°C to +70°C commercial temperature range specified for the AC suffix.

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 MAX233 variant specifically integrates the charge pump capacitors internally, distinguishing it from parts like the MAX232 which require external capacitors.

Replacement Considerations

Direct replacements within the same family include the MAX232A, though it requires external capacitors. Other compatible variants in the series include the MAX220 and MAX235, depending on the specific pinout and capacitor integration requirements.