MAX3223EEAP+

Overview

The MAX3223EEAP+ is a true RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It features two drivers and two receivers, supporting full-duplex communication at data rates up to 250kbps. The device operates from a single +3.0V to +5.5V supply and incorporates an AutoShutdown feature that reduces the supply current to 1µA when no valid signal levels are detected on receiver inputs for 30µs. It includes enhanced ESD protection rated at ±15kV (Human Body Model) and ±8kV (IEC 1000-4-2 Contact Discharge). The component is housed in a 20-pin SSOP package and is specified for operation over an extended temperature range of -40°C to +85°C.

Feature Summary

• AutoShutdown technology automatically disables charge pumps and drivers to minimize power consumption during idle periods or cable disconnection.
• Integrated dual charge pump generates internal ±5.5V supplies using only four small external capacitors.
• Robust I/O protection withstands high electrostatic discharge events without latch-up across all operational states.

Applications

• Notebook, subnotebook, and palmtop computers
• Battery-powered handheld equipment and peripherals
• Cellular phones and portable devices

Procurement Notes

Verify the specific suffix 'EAP+' against the manufacturer's official datasheet to confirm the SSOP-20 package and -40°C to +85°C temperature rating. Ensure compatibility with existing BIOS or operating systems as the AutoShutdown feature requires no software modifications. Confirm RoHS compliance status based on the latest manufacturing documentation.

Selection Notes

Select this component for applications requiring low-power standby modes in battery-operated environments. The integrated charge pump eliminates the need for external voltage converters. Verify that the required data rate does not exceed 250kbps and that the system can accommodate the necessary external capacitor values for the charge pump operation.

Part Context

This part belongs to the MAX3221E/MAX3223E/MAX3243E family of 3V-powered RS-232 transceivers. While the MAX3221E offers one driver/receiver pair and the MAX3243E provides three drivers and five receivers, the MAX3223E specifically delivers two drivers and two receivers. All variants share the same core architecture, including AutoShutdown and ESD protection capabilities.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.