MAX3284EAUT+T

Overview

The MAX3284EAUT+T is a single RS-485/RS-422 receiver in a 6-pin SOT23 package. It supports data rates up to 52Mbps with a 3V to 5.5V supply voltage and operates from -40°C to +125°C. The device features true fail-safe circuitry, ±15kV HBM ESD protection, and a user-defined VL pin (1.65V to VCC) for low-voltage logic compatibility. Supply current is typically 15mA at no load.

Feature Summary

• User-configurable VL pin enables direct interface with low-voltage digital logic such as FPGAs and ASICs.
• True fail-safe architecture guarantees a high output state when inputs are open or shorted.
• High input impedance allows connection of up to 128 receivers on a single bus.
• Integrated thermal protection limits power dissipation during output short circuits.

Applications

• Multidrop clock distribution networks
• Telecom rack equipment
• Industrial control systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm lead-free status and tape-and-reel packaging configuration. Confirm that the component meets RoHS compliance requirements for your target assembly process before finalizing procurement orders.

Selection Notes

Select this part when interfacing with low-voltage logic families like FPGAs using the VL pin. Ensure the required data rate does not exceed 20Mbps if VL is set below 3.3V. Verify that the 6-pin SOT23 footprint fits the design constraints compared to the 5-pin variant.

Part Context

This component belongs to the MAX3280E family of single receivers designed for RS-485 and RS-422 communication. Unlike other members of the series, it utilizes a VL pin instead of an enable pin to manage logic levels. It shares common electrical characteristics such as propagation delay and ESD protection ratings with its siblings.

Replacement Considerations

MAX3280EAUK+T

FAQ

How does the VL pin affect the maximum data rate?

Setting VL to 1.65V limits the maximum data rate to 20Mbps. Setting VL to 3.3V or higher allows operation at the full 52Mbps speed.

What is the function of the fail-safe feature?

It guarantees a logic-high receiver output when the receiver inputs are opened, shorted, or connected to a terminated bus with all drivers disabled.