MAX3222EEUP-T

Overview

The MAX3222EEUP-T is a dual driver/receiver RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single 3.0V to 5.5V supply and supports data rates up to 1Mbps. The device features ±15kV ESD protection on all inputs and outputs, ensuring robust performance in harsh environments. It utilizes a TSSOP-20 package for surface-mount installation. Key electrical parameters include a maximum propagation delay of 0.3µs, a typical operating supply current of 1mA, and an extended industrial temperature range from -40°C to +85°C. The component includes shutdown functionality for power conservation.

Feature Summary

• Integrated ±15kV ESD protection on RS-232 drivers and receivers
• Low-power operation with shutdown mode capability
• True RS-232 compliance with full-duplex communication
• Single-supply voltage operation from 3.0V to 5.5V

Applications

• Industrial control systems requiring reliable serial communication
• Portable battery-powered equipment due to low power consumption
• Modems and fax machines utilizing standard RS-232 interfaces
• Point-of-sale (POS) terminals and handheld devices

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributors. Ensure the ordering part number matches the exact pinout and thermal requirements for the target PCB design. Cross-reference with the latest datasheet revision to confirm any manufacturing changes.

Selection Notes

Select this component for applications requiring high ESD immunity and low standby current. The TSSOP-20 package is suitable for space-constrained designs. Compare against the MAX3222EUP variant if tube packaging is preferred over reel. Consider the MAX3322E series if multidrop bus capabilities are required instead of point-to-point connections.

Part Context

This part belongs to the Maxim Integrated MAX3222E family of true RS-232 transceivers. The family includes variants with different packaging options such as TSSOP and QFN, and varying data rate capabilities. The EE designation typically denotes enhanced ESD protection features compared to standard versions. This specific model represents the industry-standard interface solution for legacy serial communications.

Replacement Considerations

The MAX3222EUP+ is a compatible lead-free alternative in tube packaging. For multidrop applications, the MAX3322EEUP+ offers similar electrical characteristics with added bus termination control. Verify pin compatibility before substituting with generic RS-232 transceivers.