MAX3228EBV

Overview

The MAX3228EBV is a low-power, full RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It integrates two drivers and two receivers within a compact 30-UCSP (2.55mm x 3.06mm) surface-mount package. The device operates on a single power supply ranging from 2.5V to 5.5V and supports data rates up to 250kbps. Key electrical specifications include ±15kV ESD protection on I/O pins per the Human Body Model, a typical quiescent current of 1µA in shutdown mode, and receiver hysteresis of 300mV. It functions reliably across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrated ±15kV electrostatic discharge protection on all RS-232 transmitter outputs and receiver inputs.
• Ultra-low power consumption with 1µA auto-shutdown mode for battery-operated applications.
• Compact chip-scale packaging designed to minimize printed circuit board area requirements.
• Compatible with single-cell lithium battery operation down to 2.5V supply voltage.

Applications

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

Procurement Notes

Verify component authenticity through authorized distribution channels due to potential availability constraints. Confirm that the specific ordering suffix corresponds to the required tape-and-reel packaging format. Ensure compliance with RoHS directives and check for any relevant product change notices or end-of-life declarations prior to finalizing procurement orders.

Selection Notes

Select this component when space-constrained designs require full RS-232 functionality without external charge pumps. It is suitable for systems needing robust ESD immunity on serial ports. Compare against standard DIP packages if board real estate permits larger footprints. Verify that the 250kbps speed meets system timing requirements.

Part Context

This part belongs to the Maxim Integrated MAX3228E/MAX3229E family of low-power RS-232 transceivers. These devices are engineered for portable electronics requiring minimal external capacitance and reduced power dissipation. The UCSP package variant specifically targets high-density PCB layouts where traditional small-outline packages exceed available space.

Replacement Considerations

MAX3228EEBV-T

FAQ

What is the maximum data rate supported by the MAX3228EBV?

The device guarantees a data rate of up to 250kbps.

Does the MAX3228EBV require external capacitors?

Yes, it requires four small 0.1µF capacitors for operation.

What is the ESD protection rating for the I/O pins?

The I/O pins are protected to ±15kV using the Human Body Model.