Rtl9210b Datasheet 2021 Official

| Errata ID | Issue | Workaround in 2021 Datasheet | | :--- | :--- | :--- | | RTL9210B-E1 | PCIe link fails to negotiate x2 with some Phison E18 controllers | Force Gen 2 x2 by pulling CFG2 (Pin 2) low via 10k resistor | | RTL9210B-E2 | USB 3.1 eye diagram fails with cables >0.8m | Add 1 pF capacitor to ground on USB_SS_TX+/- | | RTL9210B-E3 | I2C EEPROM corruption at power loss | Enable ferrite bead + 470 µF hold-up capacitor on 3.3V rail | The 2021 datasheet clarifies that these errata are not fixed in the silicon. They are design corrections. For fixed silicon, request RTL9210B-CG (2022 revision). 9. Comparison with Competitors (Based on 2021 Version) For engineers selecting a bridge IC in 2021, the datasheet includes a competitive table (likely for internal use):

Published: Mid-2021 Review | Part Number: RTL9210B-VC / RTL9210B-CG Vendor: Realtek Semiconductor Corp. Introduction: Why the 2021 Datasheet Still Matters The Realtek RTL9210B is a highly integrated USB 3.1 Gen 2 to PCIe Gen 3 x2 bridge controller, primarily designed for external SSD enclosures (NVMe and AHCI). While newer chips exist, the 2021 revision of the RTL9210B datasheet represents a critical baseline for firmware stability, power sequencing, and hardware compatibility. rtl9210b datasheet 2021

| Feature | RTL9210B | ASMedia ASM2362 | JMicron JMS583 | | :--- | :--- | :--- | :--- | | Max PCIe Speed | Gen 3 x2 | Gen 3 x2 | Gen 3 x2 | | UASP Support | Full | Full | Partial (no TRIM) | | Operating Temp (max) | 85°C | 70°C | 80°C | | 4Kn Drive Support | Yes (2021 FW) | No | Via beta FW | | Price (2021, 1k units) | $2.85 | $4.20 | $2.60 | | Errata ID | Issue | Workaround in

For engineers, the key takeaways are the updated power sequencing rules, the errata workarounds, and the PCB impedance requirements. For hobbyists, the 2021 sheet confirms that firmware tools like RTL9210B_FW_Tool_v1.19 are the last stable releases before newer versions introduced read-only bugs. While newer chips exist, the 2021 revision of

| 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 |

| 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 |

Engineers searching for the "rtl9210b datasheet 2021" are typically looking for one of three things: original pinout diagrams for PCB layout, power consumption tables for USB-C certification, or the specific register mappings used in firmware development for drives like the WD Black SN750 or Samsung 980.