AZRS3080E

Drivers, Receivers, Transceivers Overview

The AZRS3080E is a half-duplex RS-485 transceiver IC manufactured by Amazing Micro. It operates on a single 5V power supply and supports data rates up to 10Mbps. The device integrates an internal transient voltage suppressor (TVS) providing ±15kV IEC 61000-4-2 contact discharge protection on bus terminals A and B. It features true fail-safe receiver circuitry, hot-swap glitch-free protection, and thermal shutdown. The receiver input impedance is 96 kΩ (1/8 unit load), allowing up to 256 devices on the bus. Supply current ranges from 300μA to 900μA depending on control states.

Drivers, Receivers, Transceivers Feature Summary

• Integrated TVS for ±15kV IEC 61000-4-2 contact discharge protection on bus pins
• True fail-safe receiver guarantees logic-high output when inputs are open, shorted, or idle
• Hot-swap glitch-free design prevents false transitions during power-up
• High driving ability with VOD2 up to 2.3V under loaded conditions

Drivers, Receivers, Transceivers Applications

• Motor Control systems
• Industrial Control networks
• Security System communication
• Building Automation Networks

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm packaging type and material compliance. The datasheet lists AZRS3080E.RDG as a green part in tape and reel format. Confirm that the received component matches the marking code RS3080E WWXXG to ensure authenticity and correct revision status before integration into production.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring robust system-level ESD protection without external TVS diodes. The 1/8 unit load specification enables high node density on the RS-485 bus. Ensure the application environment stays within the -40°C to +85°C operating temperature range. Verify that the 5V supply voltage aligns with the system power architecture and that the half-duplex interface meets the communication protocol requirements.

Drivers, Receivers, Transceivers Part Context

The AZRS3080E belongs to the AZRS series of RS-485 transceivers produced by Amazing Microelectronic Corp. This series focuses on integrating electrostatic discharge protection directly into the transceiver die. The device is designed to meet EIA/TIA-485 standards while offering enhanced noise immunity and fault tolerance for industrial environments.

Drivers, Receivers, Transceivers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Cross-referencing should be performed using electrical parameters such as 10Mbps data rate, 5V supply, SO-8 package, and ±15kV IEC ESD protection levels.

Drivers, Receivers, Transceivers FAQ

What constitutes 'true fail-safe' in the AZRS3080E?

True fail-safe means the receiver output is guaranteed to be logic-high when the differential inputs (A and B) are open, shorted, or idle, unlike traditional designs that only handle open circuits.

How many devices can be connected on the bus?

Due to its 96 kΩ receiver input impedance (1/8 unit load), the AZRS3080E allows up to 256 transceivers to be connected in parallel on the RS-485 bus.

What is the ESD protection level for the bus pins?

The integrated TVS provides ±15kV IEC 61000-4-2 contact discharge protection and ±18kV air-gap discharge protection on the A and B bus terminals.