MAX232ACUE+

Overview

The MAX232ACUE+ is a dual RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, designed for EIA/TIA-232E and V.28/V.24 communication interfaces. It operates on a single +5V power supply with a minimum voltage of 4.5V and a maximum of 5.5V. The device features two drivers and two receivers supporting full-duplex data transmission at rates up to 200 kb/s. Packaged in a 16-pin SOIC surface-mount format, it functions within a commercial temperature range of 0°C to +70°C. The component draws a typical operating supply current of 10 mA and lacks an integrated shutdown mode or explicit ESD protection specifications.

Feature Summary

• Integrates two independent drivers and two receivers for simultaneous bidirectional communication
• Operates from a single +5V power source without requiring external negative voltage rails
• Supports standard RS-232 protocol compliance for serial interface applications

Applications

• Battery-powered systems requiring simplified power management
• Portable computers and handheld devices
• Low-power modems and interface translation circuits

Procurement Notes

Verify the specific suffix 'ACUE+' against official manufacturer documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for SOIC-16 components. Cross-reference datasheet revisions to validate electrical characteristics against current design requirements before finalizing procurement orders.

Selection Notes

Select this component when a single +5V supply is available and moderate data rates are sufficient. Compare against low-voltage variants if system power constraints require operation below 4.5V. Evaluate thermal performance within the specified commercial temperature range to ensure reliable operation under expected load conditions.

Part Context

This part belongs to the MAX220–MAX249 family of line drivers and receivers. These components were developed to eliminate the need for ±12V power supplies in RS-232 applications. The MAX232 series established a standard for integrating charge pump circuitry directly into the IC, allowing TTL/CMOS logic levels to interface directly with RS-232 standards using minimal external capacitance.

Replacement Considerations

The MAX232CSE serves as a compatible alternative within the same product family. Verify pinout consistency and electrical parameter alignment before substitution.