MAX233AEPP

Overview

The MAX233AEPP is a +5V-powered, multichannel RS-232 line driver/receiver manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +4.75V to +5.25V supply and features two transmitters and two receivers. The device integrates internal charge-pump circuitry, eliminating the need for external bipolar ±12V supplies or discrete capacitors. It supports data rates up to 120kbps with an operating temperature range of -40°C to +85°C. The component is housed in a 20-pin Plastic DIP package.

Feature Summary

• Integrated charge pump eliminates the need for external capacitors
• Single +5V power supply operation without bipolar rails
• Low-power shutdown mode reduces power dissipation

Applications

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

Procurement Notes

Verify that the ordering suffix 'A' confirms the extended industrial temperature range (-40°C to +85°C) and 'P' indicates the plastic DIP package. Confirm compliance with EIA/TIA-232E standards and ensure the specific revision matches the current datasheet requirements for your design.

Selection Notes

Select this part when board space is critical due to the absence of external charge-pump capacitors. Ensure the application requires only two channels and operates within the specified +5V tolerance. Verify that the 120kbps data rate meets system timing requirements.

Part Context

This component belongs to the MAX220–MAX249 family of +5V-powered RS-232 drivers and receivers. It shares the integrated capacitor architecture with the MAX225, MAX235, and MAX245/MAX246/MAX247 models, designed specifically for applications where printed circuit board space is limited.

Replacement Considerations

Public confirmed substitutes include MAX233EPP and MAX233CPE.