AZRS6534

Drivers, Receivers, Transceivers Overview

The AZRS6534 is a half-duplex RS-485 transceiver designed for 5V power supply applications, compliant with EIA/TIA-485 standards. It integrates one transmitter and one receiver with a maximum data rate of 8 Mbps. The device features built-in transient voltage suppression, supporting ±30 kV IEC 61000-4-2 contact/air discharge, ±4.4 kV IEC 61000-4-4 EFT, and ±30 A IEC 61000-4-5 surge protection on bus terminals. It includes true fail-safe receivers, hot-swap glitch-free protection, and thermal shutdown. Operating within -40°C to +85°C, it utilizes an SO-8 package.

Drivers, Receivers, Transceivers Feature Summary

• Integrated Transient Voltage Suppressor (TVS) providing high immunity against electrostatic discharge, fast electrical transients, and surge events without external components.
• True Fail-Safe Receiver guarantees a logic-high output state when receiver inputs are open, shorted, or idle, eliminating the need for external pull-up or pull-down resistors.
• Hot-Swap Glitch-Free Protection ensures transmitter and receiver outputs remain in a high-impedance state during power-up, preventing bus contention and system glitches.
• High Node Capacity supports up to 256 transceivers on the bus due to low input impedance, facilitating extensive distributed control networks.

Drivers, Receivers, Transceivers Applications

• Motor Control Systems
• Industrial Control Networks
• Telecommunications Equipment
• Security System Infrastructure
• Building Automation Networks

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix, such as .RDG, which indicates green material type and tape-and-reel packaging configuration. Confirm that the required quantity aligns with standard reel sizes, typically 2,500 units per reel. Ensure compatibility with 5V logic levels and check for any regional compliance certifications required for the target market deployment.

Drivers, Receivers, Transceivers Selection Notes

Select this component for 5V RS-485 applications requiring robust internal protection against harsh electrical environments. It is suitable where minimizing external TVS components reduces board space and cost. Verify that the 8 Mbps data rate meets system requirements and that the SO-8 package fits the available footprint constraints.

Drivers, Receivers, Transceivers Part Context

This device belongs to the Amazing Micro RS-485 transceiver family, specifically engineered for industrial reliability. It addresses common field issues like ESD and surge damage by integrating protection directly into the silicon. The design focuses on simplifying system architecture by removing the need for discrete protection diodes and biasing resistors.

Drivers, Receivers, Transceivers Replacement Considerations

Direct pin-to-pin replacements should be verified against datasheet parameters, specifically focusing on integrated TVS ratings and operating temperature ranges. Ensure substitute devices support the same 5V supply voltage and 8 Mbps data rate while maintaining comparable ESD and surge immunity specifications.

Drivers, Receivers, Transceivers FAQ

How does the AZRS6534 handle bus faults without external components?

It incorporates a True Fail-Safe Receiver that forces the output high if inputs are open, shorted, or idle. Additionally, it features current limitation and thermal shutdown to protect against short circuits and overheating.

What is the maximum surge protection capability of the bus pins?

The integrated TVS allows the AZRS6534 to withstand ±30 A surge currents according to the IEC 61000-4-5 standard (8/20µs waveform).

Does the device support hot-swapping without causing bus glitches?

Yes, it includes Hot-Swap Glitch-Free Protection that keeps both transmitter and receiver outputs in a high-impedance state until the power supply stabilizes, preventing signal interference during insertion.