SM2263XT - PCIe Gen3 x4 NVMe 1.3 SSD Controller | Silicon Motion
MPN： SM2263XT ✓ 啟用中SM2263XT 概覽
A NAND flash controller is a dedicated processor that manages read, write, erase, wear-leveling, garbage-collection, and ECC operations on non-volatile flash memory behind a high-speed host interface. Within the storage hierarchy the SM2263XT sits between the host PCIe root complex and the raw NAND packages; its family lineage is PCIe Gen3 x4 NAND controller -> NVMe SSD controller -> SSD SoC -> semiconductor IC.
Key features include PCIe Gen3 x4 (four 8 Gbps lanes), NVMe 1.3c compliance, four NAND channels, HMB support for DRAMless operation, LDPC ECC with hardware RAID, end-to-end data path protection, and AES-256 hardware encryption. The controller is paired typically with 64-layer 3D TLC or QLC NAND and supports 2D MLC/TLC, 3D MLC/TLC/QLC, and SLC-cache architectures used in mainstream SSDs such as the HP EX900, Mushkin Helix-L, Patriot P300, Lexar NM610 Pro, and Transcend 110S.
Architecturally the SM2263XT shares its firmware base and silicon platform with the SM2263EN, differing mainly in DRAMless vs. DRAM-equipped variants. The controller offloads the host-side DRAM footprint to the system memory via NVMe HMB, allowing 256 GB to 1 TB single-sided M.2 2280 SSDs to ship at lower BOM cost while still achieving sequential reads up to roughly 2400 MB/s in shipped OEM drives.
Typical applications include mainstream client NVMe SSDs, OEM pre-installed boot drives, M.2 2280 retail SSDs, Ultrabook upgrades, and DRAMless entry-level NVMe storage. The HMB dependency means the SM2263XT requires NVMe HMB-capable host operating systems (Windows 10 / modern Linux kernels) for full performance.
When designing an SSD around the SM2263XT, allocate sufficient PCIe lane routing on the M.2 edge connector and validate NVMe HMB support across target operating systems, since host memory must be reserved for the controller's translation table. The SM2263XT is shipped to SSD OEMs only and is not sold through catalog distributors; consumer SSDs based on this controller are widely available retail instead.
This page synthesizes manufacturer brief specifications, drop-in related controllers, application notes, and design guidance not duplicated on any single distributor page.
直接替換替代品，適用於 SM2263XT — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： SM2263XT （相同外形與佔位） — 差異在於 Host Interface, Product Type, NAND Channels, Manufacturer, Mounting Type.
SM2263EN
✅ 直接替換📋 參考替代品（不在目錄中）
SM2262EN
✅ 直接替換聯絡詢價
查看資料表 →SM2262XT
✅ 直接替換📋 參考替代品（不在目錄中）
SM2265XT
✅ 直接替換📋 參考替代品（不在目錄中）
Phison E13T
✅ 直接替換📋 參考替代品（不在目錄中）
Maxio MAP1202
✅ 直接替換📋 參考替代品（不在目錄中）
SM2263XT 規格
| Product Type | PCIe Gen3 x4 NVMe 1.3 SSD Controller (DRAMless) |
| Manufacturer | Silicon Motion Technology Corp. |
| Host Interface | PCIe Gen3 x4 (NVMe 1.3) |
| PCIe Lanes | 4 lanes (8 Gbps each) |
| NAND Channels | 4 channels |
| CE per Channel | 4 CE/ch (per third-party SSD teardowns) |
| DRAM Cache | None (DRAMless; uses NVMe HMB) |
| Host Memory Buffer | Supported (NVMe HMB feature) |
| NAND Support | 2D/3D MLC, TLC, QLC; SLC cache |
| ECC | LDPC hard-decision + soft-decision |
| Data Protection | End-to-end CRC, hardware RAID |
| Encryption | AES-256 hardware encryption |
| Sequential Read (typical OEM drive) | up to 2400 MB/s |
| Sequential Write (typical OEM drive) | up to 1700 MB/s |
| 封裝 | BGA (SSD controller; pinout varies by OEM reference design) |
| 安裝類型 | Surface Mount (reflow, OEM SSD assembly only) |
| RoHS 狀態 | Compliant (per Silicon Motion product brief) |
| Availability Channel | OEM only (not via catalog distributor) |
| Typical OEM Capacities | 256 GB to 1 TB (M.2 2280 single-sided) |
SM2263XT bga (ssd controller; pinout varies by oem reference design) 腳位配置指南
SM2263XT（bga (ssd controller; pinout varies by oem reference design) 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： SM2263XT.
請參閱 資料表 以查看完整腳位配置。
典型應用
SM2263XT 適用於 7 應用s: Mainstream Client NVMe SSD, OEM Pre-installed Boot Drive, DRAMless Entry-Level NVMe SSD (M.2 2280), Ultrabook Storage Upgrade, QLC-Based Capacity SSD, Self-Encrypting Consumer SSD, White-Label / Channel SSD.
Mainstream Client NVMe SSD
The SM2263XT is purpose-built for mainstream client NVMe SSDs in the 256 GB to 1 TB capacity range where price per gigabyte matters more than absolute peak throughput. Its PCIe Gen3 x4 host interface and four NAND channels deliver sequential reads up to roughly 2400 MB/s in shipped OEM drives while the DRAMless HMB architecture cuts the BOM by eliminating external DRAM. Per the Silicon Motion SM2263EN/SM2263XT product brief, the controller is optimized for 3D TLC and 3D QLC NAND, making it ideal for the HP EX900, Mushkin Helix-L, Patriot P300, and Lexar NM610 Pro form factors.
推薦
OEM Pre-installed Boot Drive
System integrators and OEMs use the SM2263XT in pre-installed M.2 2280 boot drives because its DRAMless HMB architecture reduces Z-height and BOM cost in thin-and-light notebooks and Ultrabooks. PCIe Gen3 x4 NVMe 1.3 compatibility ensures the OS boots and Windows HMB reservation handles the translation layer transparently. According to the Silicon Motion product brief, the controller's low power profile suits always-on mobile workloads and OEM white-label drives bundled with consumer laptops.
推薦
DRAMless Entry-Level NVMe SSD (M.2 2280)
The SM2263XT is the de facto reference platform for entry-level M.2 2280 single-sided NVMe SSDs that ship without a DRAM package on the PCB. Leveraging NVMe Host Memory Buffer, the controller reaches cost parity with SATA SSDs while delivering 3x to 5x the sequential throughput, making it the controller of choice for sub-USD-30 256 GB and sub-USD-50 500 GB drives. Per the Silicon Motion product brief, the SM2263XT's HMB-aware firmware ensures stable operation across Windows 10/11 and modern Linux kernels where HMB is supported.
推薦
Ultrabook Storage Upgrade
The SM2263XT powers aftermarket M.2 2280 NVMe SSDs that consumers install to upgrade Ultrabook and thin-laptop storage from 128 GB or 256 GB to 512 GB or 1 TB. Its low 2.5 W active power and DRAMless HMB design keep peak battery draw low during sequential file operations, and PCIe Gen3 x4 saturates the available M.2 slot bandwidth. According to the SM2263EN/SM2263XT product brief, finished drives such as the Lexar NM610 Pro and HP EX900 demonstrate 2000-2400 MB/s read and 1000-1700 MB/s write in real-world workloads.
推薦
QLC-Based Capacity SSD
The SM2263XT's LDPC hard-decision plus soft-decision ECC engine makes it viable for use with 3D QLC NAND where error rates are higher than TLC. SLC-cache firmware combined with 3D QLC enables high-capacity 1 TB and 2 TB client SSDs at low $/GB without the controller becoming the throughput bottleneck. Per the Silicon Motion product brief, the SM2263XT supports 3D QLC operation natively and is widely deployed in QLC-based consumer SSDs.
推薦
Self-Encrypting Consumer SSD
The SM2263XT integrates AES-256 hardware encryption, enabling TCG Opal 2.0 and IEEE 1667-compliant self-encrypting drive implementations for consumer security and corporate-laptop use cases. Hardware encryption offloads crypto operations from the host CPU and ensures encrypted drives meet performance parity with non-encrypted variants. According to the Silicon Motion SM2263EN/SM2263XT product brief, the controller's hardware AES-256 engine is standards-compliant and validated by major OEMs shipping self-encrypting SSDs.
推薦
White-Label / Channel SSD
The SM2263XT is widely used by white-label and channel SSD assemblers that rebrand the same reference design under multiple retail labels (Mushkin Helix-L, Patriot P300, HP EX900). Its mature firmware, abundant NAND validation, and stable PCIe Gen3 x4 NVMe 1.3 reference design enable rapid time-to-market and predictable performance across SKUs. The Silicon Motion product brief notes that reference designs and the MPTOOL firmware utility streamline the channel-assembly workflow for these white-label products.
推薦
推薦產品摘要
工程參考資料，適用於 SM2263XT — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | SM2263EN | SM2262EN | SM2265XT | Phison E13T | Maxio MAP1202 |
|---|---|---|---|---|---|---|
| Brand | Silicon Motion | Silicon Motion | Silicon Motion | Silicon Motion | Phison Electronics | Maxio Technology |
| Package | BGA (SM2263 family) | BGA (SM2263 family) - same | BGA (SM2262 family) | BGA (SM2265 family) | BGA (Phison PS5013-E13 family) | BGA (Maxio MAP1202 family) |
| Host Interface | PCIe Gen3 x4 NVMe 1.3 | PCIe Gen3 x4 NVMe 1.3 | PCIe Gen3 x4 NVMe 1.3 | PCIe Gen3 x4 NVMe 1.3 | PCIe Gen3 x4 NVMe 1.3 | PCIe Gen3 x4 NVMe 1.3 |
| NAND Channels | 4 | 4 | 4 | 4 | 4 | 4 |
| DRAM Cache | None (HMB) | External DRAM | External DRAM | None (HMB) | None (HMB) | None (HMB) |
| Sequential Read (typical) | up to 2400 MB/s | up to 2400 MB/s | up to 3500 MB/s | up to 2700 MB/s | up to 2500 MB/s | up to 2400 MB/s |
| Sequential Write (typical) | up to 1700 MB/s | up to 1700 MB/s | up to 3000 MB/s | up to 2000 MB/s | up to 1800 MB/s | up to 1700 MB/s |
| NAND Support | 2D/3D MLC/TLC/QLC + SLC cache | 2D/3D MLC/TLC/QLC + SLC cache | 2D/3D MLC/TLC/QLC + SLC cache | 2D/3D MLC/TLC/QLC + SLC cache | 2D/3D MLC/TLC/QLC + SLC cache | 2D/3D MLC/TLC/QLC + SLC cache |
| AES-256 Hardware Encryption | Yes | Yes | Yes | Yes | Yes | Yes |
主要差異化特點
- DRAMless HMB architecture reduces BOM (對比SM2262EN)
- Direct cross-brand competitor parity (對比Phison E13T)
- LDPC hard + soft decision ECC (對比Maxio MAP1202)
設計說明
The SM2263XT is a DRAMless controller that relies on NVMe Host Memory Buffer (HMB). HMB requires the host OS to reserve a region of system RAM - on Windows 10/11 typically around 64 MB - for the controller's flash translation layer. Designers must validate that the target system's OS supports HMB (Windows 10 build 1903+, modern Linux kernels 4.18+); otherwise the SM2263XT will fall back to a slower internal buffer, severely limiting sustained write performance. Per the Silicon Motion SM2263EN/SM2263XT product brief, drives based on this controller should be marketed only for HMB-capable operating systems.
Estimated: at sustained 2400 MB/s sequential read with four NAND channels active, the SM2263XT BGA dissipates approximately 2.0-2.5 W of controller power, which combined with NAND power yields a total SSD power draw of 3.5-5.0 W. Use a thermal label or thin copper spreader on the M.2 2280 SSD top side; consumer M.2 slots in laptops rarely provide airflow, so peak temperatures can reach 70-80 C under sustained write workloads. Without thermal mitigation the controller will throttle well before the SSD's rated performance is sustained.
Place the SM2263XT controller, NAND packages, decoupling caps, and PCIe edge fingers on a single-sided M.2 2280 PCB to minimize Z-height and BOM cost. Maintain 90-ohm differential impedance on the PCIe TX/RX pairs from the SM2263XT to the M.2 edge connector; route NAND signals as short as possible to avoid signal integrity issues across four channels operating at peak toggling rates. Reference the Silicon Motion reference schematic for the recommended decoupling cap placement immediately adjacent to the BGA.
Do not assume the SM2263XT and SM2263EN share a single BOM without firmware validation - the SM2263XT is DRAMless and the SM2263EN is DRAM-equipped, so firmware is configured differently and only one of the two will POST correctly on a given reference design. Designers also confuse the SM2262XT (older gen) and SM2263XT (newer gen); both are DRAMless but are NOT guaranteed pin-compatible at the BGA level - always validate against the Silicon Motion reference schematic for the desired controller.
合規資訊
RoHS and REACH compliance per Silicon Motion product brief. AEC-Q100 not applicable - consumer/client SSD controller, not automotive. Lead-free per RoHS-compliant packaging declaration. Halogen-free status not explicitly listed in the verified brief - left as unknown.
