MAX3222EEAP+

Overview

The MAX3222EEAP+ is a true RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +3.0V to +5.5V supply and features two drivers and two receivers for full-duplex communication. The device guarantees data rates up to 250kbps, with specific configurations supporting up to 1Mbps. It incorporates an internal dual charge pump requiring only four 0.1μF capacitors. ESD protection is rated at ±15kV (Human Body Model) and ±8kV (IEC Contact Discharge). The part utilizes a 20-pin SSOP package and supports an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrated dual charge pump enables operation from a single low-voltage supply without external inverting regulators.
• Enhanced electrostatic discharge protection safeguards transmitter outputs and receiver inputs against high-voltage static events.
• Low-power shutdown mode significantly reduces supply current while maintaining receiver activity for external device monitoring.

Applications

• Battery-powered portable equipment
• Cell phone and smartphone data cables
• Notebook and subnotebook computers

Procurement Notes

Verify the component status as production active or obsolete through official manufacturer channels before procurement. Confirm that the ordering suffix corresponds to the required lead-free/RoHS-compliant packaging. Ensure the selected package variant matches the intended PCB layout constraints and thermal requirements.

Selection Notes

Select this component when designing systems requiring compatibility with industry-standard MAX232 interfaces but needing improved power efficiency. The device is suitable for applications where space is limited due to its small capacitor requirements. Consider the shutdown functionality if battery life extension is a primary design constraint.

Part Context

This device belongs to the MAX3222E family of RS-232 transceivers designed for low-voltage operation. It serves as a direct replacement for legacy MAX232 solutions in modern portable electronics. The EE suffix indicates the extended industrial temperature range variant within the broader product line.

Replacement Considerations

The MAX3222EEAP+ is functionally compatible with the MAX232. Verify pinout alignment and voltage level compatibility when substituting older components in existing designs.