MAX3228EBV-T

Overview

The MAX3228EBV-T is a full RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, housed in a 30-UCSP (2.55x3.06mm) surface-mount package. It operates on a single power supply ranging from 2.5V to 5.5V and supports data rates up to 250kbps. The device integrates two drivers and two receivers with a receiver hysteresis of 300mV. It provides robust electrostatic discharge protection rated at ±15kV via IEC 1000-4-2 Air-Gap Discharge, ±8kV Contact Discharge, and ±15kV Human Body Model. The component functions within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrated ±15kV ESD protection on all RS-232 I/O pins for enhanced signal integrity in harsh environments.
• Ultra-small 6x5 chip-scale package design enabling significant board space reduction.
• Low-power auto-shutdown mode achieving 1µA supply current for battery-operated applications.
• Capable of operation down to 2.5V, allowing compatibility with single Li+ cell power sources.

Applications

• Personal Digital Assistants
• Cell Phones and Handheld Devices
• Data Lump Cables
• Set-Top Boxes

Procurement Notes

Verify the specific suffix 'BV' against the manufacturer's official datasheet to confirm the exact package variant and tape-and-reel specifications. Confirm end-of-life status or obsolescence through authorized distributors before finalizing procurement plans. Ensure the ordering part number matches the required temperature grade and packaging format for production integration.

Selection Notes

Select this component when minimizing PCB area is critical due to its UCSP footprint. Choose this model for systems requiring high ESD immunity on serial ports without external protection components. Verify that the 250kbps data rate meets system requirements and that the 2.5V minimum operating voltage aligns with the available power rail.

Part Context

This device belongs to the MAX3228E/AE and MAX3229E/AE family of low-power RS-232 transceivers. These parts are designed for portable electronics where small size and low power consumption are primary constraints. The series offers enhanced ESD protection compared to standard RS-232 interfaces, making them suitable for direct connection to external connectors.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the available documentation. Consult the manufacturer's cross-reference tools for potential alternatives if this obsolete part is no longer available.

FAQ

What is the ESD protection rating for the MAX3228EBV-T?

The device features ±15kV IEC 1000-4-2 Air-Gap Discharge, ±8kV IEC 1000-4-2 Contact Discharge, and ±15kV Human Body Model protection on all transmitter outputs and receiver inputs.

Does the MAX3228EBV-T support operation from a single lithium cell?

Yes, the device is RS-232 compatible down to +2.5V, allowing it to operate from a single Li+ cell.

What is the maximum data rate supported by this transceiver?

The MAX3228EBV-T guarantees a data rate of 250kbps.