Rtl9210b Datasheet 2021 (2025)

Interface (Device): PCI Express Gen 3 x2 (NVMe).

Storage Support:

Flash Memory: Embedded SPI Flash interface for firmware updates.

If you are engineering a PCB or troubleshooting an enclosure, here are the critical hardware notes derived from reference designs:

You may see references to the RTL9210 vs RTL9210B.

The 2021 datasheet provides updated power figures measured at 25°C ambient, with a Samsung PM981a 1TB NVMe SSD:

| State | USB Link | Current (5V) | Power | Temp Rise | | :--- | :--- | :--- | :--- | :--- | | Sleep (ASPM L1.2) | Suspend | 58 mA | 0.29 W | +2°C | | Idle (no trim) | Gen 2 (10G) | 320 mA | 1.6 W | +12°C | | Sequential Write (4KB) | Gen 2 (10G) | 890 mA | 4.45 W | +38°C | | Thermal Throttle (85°C) | Gen 1 (5G) | 610 mA | 3.05 W | N/A |

Critical 2021 Note: The RTL9210B will begin thermal throttling at 85°C junction temperature, reducing PCIe width from x2 to x1. Without a copper pad under the QFN, the chip will hit 105°C and shut down within 90 seconds of continuous writing.

This section is critical for power supply design. According to the 2021 document:

| Parameter | Symbol | Min | Max | Unit | | :--- | :--- | :--- | :--- | :--- | | Core Supply Voltage | VDD_CORE | -0.3 | 1.26 | V | | I/O Supply Voltage | VDD_IO | -0.3 | 3.63 | V | | PCIe Reference Clock | REFCLK | - | 100 | MHz | | Storage Temperature Range | T_STG | -55 | +150 | °C | | Operating Junction Temp | T_J | 0 | +85 | °C | rtl9210b datasheet 2021

2021 Update: The datasheet explicitly warns that absolute maximum ratings for the 1.05V internal regulator should not be exceeded for more than 10 ms during power-on sequencing. Failure to follow this leads to latch-up in the PCIe PHY.

If you are flashing a drive, these are the critical settings to look for:

RTL9210B Datasheet 2021: A Comprehensive Overview

The RTL9210B is a highly integrated, high-performance USB-to-UART (Universal Asynchronous Receiver-Transmitter) bridge controller chip developed by Realtek Semiconductor Corporation. This chip is designed to provide a seamless interface between USB and UART, enabling efficient and reliable data transfer between devices. In this article, we will provide an in-depth analysis of the RTL9210B datasheet 2021, highlighting its key features, specifications, and applications.

Introduction

The RTL9210B is a USB-to-UART bridge controller chip that has gained significant attention in recent years due to its high performance, low power consumption, and compact design. This chip is widely used in various applications, including industrial control, automation, medical devices, and consumer electronics. The RTL9210B datasheet 2021 provides detailed information on the chip's architecture, functionality, and technical specifications, making it an essential resource for engineers, developers, and researchers. Interface (Device): PCI Express Gen 3 x2 (NVMe)

Key Features

The RTL9210B datasheet 2021 highlights several key features that make this chip an attractive solution for USB-to-UART bridging applications. Some of the notable features include:

Technical Specifications

The RTL9210B datasheet 2021 provides detailed technical specifications for the chip, including:

UART Interface Specifications:

Power Consumption:

Applications

The RTL9210B datasheet 2021 highlights various applications for the chip, including: Storage Support:

Conclusion

In conclusion, the RTL9210B datasheet 2021 provides a comprehensive overview of the chip's architecture, functionality, and technical specifications. The RTL9210B is a highly integrated, high-performance USB-to-UART bridge controller chip that is widely used in various applications, including industrial control, medical devices, and consumer electronics. Its high-speed USB interface, low power consumption, and compact design make it an attractive solution for engineers and developers looking to design and develop innovative products.

References

By understanding the RTL9210B datasheet 2021 and its technical specifications, engineers and developers can design and develop innovative products that take advantage of the chip's high-performance capabilities and low power consumption. Whether you're working on industrial control systems, medical devices, or consumer electronics, the RTL9210B datasheet 2021 is an essential resource that can help you get started with your design and development projects.

The chip supports programmable LED output (Pin 35 in many configurations).