Rtl9210b Datasheet |verified|
: Supports Partial and Slumber power management modes.
The RTL9210B datasheet highlights the following key features:
The RTL9210B is typically housed in a small, thermally enhanced QFN (Quad Flat No-leads) package. This design minimizes the PCB footprint while ensuring efficient heat dissipation. Key Pin Groups
Thermal management is the primary challenge for bridge controllers operating at 20 Gbps. rtl9210b datasheet
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| Specification Category | Technical Details | | :--- | :--- | | | RTL9210B-CG (Standard), RTL9210BPD-CG (with Power Delivery) | | Function | USB to PCI Express / SATA Bridge Controller | | USB Interface | USB 3.2 Gen 2x1 (up to 10 Gbps), backwards compatible with USB 3.0/2.0/1.1 | | Storage Interface | PCIe Gen3 x2 (up to 16 Gbps) & SATA Gen3 (up to 6 Gbps) | | Key Feature | Dual Protocol : Auto-switches between NVMe (PCIe) and SATA M.2 SSDs via the PEDET interface | | Package | 68-pin QFN (8mm x 8mm), Green package | | Clocking | Supports 25MHz crystal clock | | External Memory | Supports up to 32Mbytes External SPI Flash for firmware | | Supported Protocols | UASP (USB Attached SCSI Protocol), BOT (Bulk-Only Transfer), TRIM, AHCI, NVM Express | | Power Management | Built-in switching regulator (5V to 1V) & LDO (5V to 3.3V), ASPM L1, L1 substate, CLKREQ | | Additional Interfaces | UART, GPIOs, eFUSE, I2C, customizable LED control |
The is a high-performance USB bridge that integrates a USB 3.1 Gen2 device with both a PCI Express (PCIe) Gen3 x2 controller and a SATA Gen3 controller. Its primary function is to enable "Dual Protocol" support, allowing a single external enclosure to host either NVMe or SATA M.2 SSDs. Core Technical Specifications : Supports Partial and Slumber power management modes
Automatically switches between USB-to-PCIe (NVMe) and USB-to-SATA modes via the M.2 interface.
Dedicated pins are provided to drive status LEDs, showing solid illumination for power-on and flashing sequences during read/write activities. 5. Firmware, Customization, and Configuration
The RTL9210B datasheet highlights several proprietary technologies that give it an edge over competitors like JMicron or ASMedia: Dual-Protocol Auto-Detection Key Pin Groups Thermal management is the primary
Customizes flashing frequencies, active-low or active-high logic, and idle behaviors.
) is a highly integrated USB to PCI Express and SATA bridge controller. Designed primarily to bridge the gap between high-speed external USB interfaces and internal M.2 storage drives, it has become a staple in modern portable external enclosures and USB-to-M.2 adapters.