MAX3212EAI+

Overview

The MAX3212EAI+ is a true RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, designed for 2.7V to 3.6V-powered serial interfaces. It features three drivers and five receivers with a guaranteed data rate of 235kbps. The device incorporates an AutoShutdown mode that reduces supply current to 1µA when no valid signal is detected. It operates within a temperature range of -40°C to +85°C and is housed in a 28-pin SSOP package.

Feature Summary

• Proprietary AutoShutdown circuitry reduces supply current to 1µA upon detecting invalid receiver input levels
• Integrated switch-mode power supply generates ±6.5V from a single low-voltage source using minimal external components
• Complementary receiver output remains active during shutdown to monitor incoming RS-32 activity without biasing other devices
• Guaranteed mouse driveability ensures compatibility with serial mice across the specified operating voltage range

Applications

• Notebook and Palmtop Computers
• Battery-Powered Equipment
• Peripherals
• Instruments

Procurement Notes

Verify the specific suffix EAI+ corresponds to the extended temperature range (-40°C to +85°C) and SSOP package configuration. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the ordering information matches the required pinout and electrical specifications for the target design.

Selection Notes

Select this component for applications requiring low-voltage operation between 2.7V and 3.6V with strict power consumption constraints. The integrated charge pump eliminates the need for external dual supplies. Verify that the 235kbps data rate meets system requirements and that the 28-pin SSOP footprint fits the PCB layout constraints.

Part Context

The MAX3212 belongs to the Maxim Integrated RS-232 transceiver family, specifically engineered for portable electronics. It distinguishes itself through the inclusion of AutoShutdown technology and complementary receiver outputs, addressing power management challenges in battery-operated systems compared to standard bipolar transceivers.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's datasheet or authorized distributor databases for cross-reference recommendations based on specific interface and package requirements.