MAX3222EETP

Overview

The MAX3222EETP is a true RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, designed for full-duplex communication. It operates within a supply voltage range of 3V to 5.5V and supports data rates up to 1Mbps. The device integrates two drivers and two receivers in a 20-TQFN (5x5) package with an exposed pad. Key electrical specifications include a propagation delay of 0.3 microseconds and a receiver hysteresis of 500 mV. It functions reliably across an extended temperature range from -40°C to +85°C.

Feature Summary

• Integrated AutoShutdown feature reduces supply current to 1µA when no valid signal is present
• Provides ±15kV electrostatic discharge protection on all pins using IEC 1000-4-2 standards
• Utilizes internal charge pumps to generate required RS-232 voltage levels from a single supply

Applications

• Portable battery-powered equipment requiring low power consumption
• Industrial control systems needing robust ESD protection
• Modems and portable instruments with RS-232 interfaces

Part Context

This component belongs to the MAX3222E family of true RS-232 transceivers. It shares functional similarities with other members like the MAX3222EEUP+ but differs in packaging. The T suffix indicates tape and reel packaging, while EE denotes the extended temperature grade. It is part of Maxim's line of low-power interface solutions.

Replacement Considerations

Verify pin compatibility with alternatives such as ADM3222ARUZ-REEL7 or MAX3222ECPN+. Note that the ADM3222 variant lacks integrated ESD protection and has different speed characteristics. Ensure the replacement package matches the 20-TQFN form factor or requires adapter design changes.