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Silicon Motion Technology Corp.

SM2508 - PCIe 5.0 NVMe SSD Controller | Silicon Motion

Teilenummer: SM2508 ✓ Aktiv
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SM2508 Übersicht

The Silicon Motion SM2508 is a high-performance, low-power PCIe Gen5 x4 NVMe 2.0 SSD controller solution designed for AI-capable PC notebooks, manufactured on TSMC's 6 nm process. It delivers an eight-channel PCIe 5.0 x4 storage-controller architecture and is positioned for high-density, high-performance, lower-power storage systems. The SM2508 is a controller semiconductor, not a complete SSD; its performance depends on the selected NAND packages, DRAM configuration, firmware, PCB design and thermal implementation.

A PCIe SSD controller is the system-level component that connects NAND flash to a host computer through the PCI Express interface. The SM2508 belongs to the broader hierarchy of PCIe storage controller, NVMe controller, solid-state drive controller, memory controller and semiconductor. PCIe 5.0 x4 provides a high-bandwidth host interface, while NVMe 2.0 defines the storage protocol used by compatible SSDs. This combination is suited to AI notebooks and other systems that need faster storage response for large datasets and compute workflows.

Verified source material identifies the SM2508 as an eight-channel PCIe 5.0 x4 NVMe controller released in 2024. Silicon Motion describes it as a high-performance, low-power solution intended to improve storage density and efficiency. One manufacturer-published result states up to 70% better efficiency compared with competitors, while another describes an example in terms of approximately 2,200 MB per watt versus a competitor value of 1,273 MB per watt. These efficiency claims are manufacturer or presentation claims and should be validated in the intended SSD design.

The controller is manufactured using TSMC's 6 nm process, a meaningful implementation detail for a high-speed storage controller because the process can influence switching performance, power consumption and thermal characteristics. Reported engineering-sample SSD configurations use the M.2 2280 form factor and capacities from 1 TB to 2 TB. Published sample specifications also report PCIe 5.0 x4, NVMe 2.0, up to 2,000,000 random-read IOPS and up to 14,000 MB/s sequential read performance. These are system-level SSD figures, not guaranteed SM2508 controller specifications.

Typical implementations include AI-capable notebooks, performance-oriented desktop PCs, gaming PCs, content-creation workstations and other systems requiring PCIe Gen5 storage. Controller selection must be coordinated with NAND interface requirements, PCIe lane configuration, power delivery, thermal design, firmware validation and SSD qualification. Published sample performance should not be treated as a production guarantee without validation of the exact NAND, firmware and thermal configuration.

Drop-in-Alternativen für SM2508 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.

Varianten dieser Serie

Modelle derselben Serie, die drop-in-kompatibel sind mit SM2508 (gleiche Bauform und Footprint) – abweichend in Product Type, Host Interface, Process Technology.

InnoGrit
Product Type: PCIe Gen5 x4 NVMe 2.0 SSD controller
Host Interface: PCI Express Gen5 x4
Process Technology: 12 nm FinFET CMOS
Vergleichen mit SM2508 →
NI
Product Type: Client-grade PCIe 5.0 x4 NVMe SSD controller
Process Technology: TSMC 6 nm
Vergleichen mit SM2508 →

Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:

PS5026-E26

✅ Drop-In
NI
📦 [DATA_NEEDED: verified package]
Client-grade PCIe 5.0 x4 NVMe SSD controller · PCIe 5.0 · x4 · 14 GB/s · 14 GB/s · 12 GB/s · 1,500K · 2,000K

✓ Auf Lager

Preis auf Anfrage

Datenblatt ansehen →

IG5666

✅ Drop-In
InnoGrit
📦 [DATA_NEEDED: verified package]
PCIe Gen5 x4 NVMe 2.0 SSD controller · InnoGrit · 12 nm FinFET CMOS · PCI Express Gen5 x4 · NVMe 2.0 · Up to 32 TB · Product Revision Level 1.0 · M.2 2280 SSD example

✓ Auf Lager

Preis auf Anfrage

Datenblatt ansehen →

E28

✅ Drop-In
📦 [DATA_NEEDED: verified package]
Same PCIe Gen5 controller category, but package, pinout and SM2508-specific interface compatibility are not verified

📋 Referenzalternative (nicht im Katalog)

E31T

✅ Drop-In
📦 [DATA_NEEDED: verified package]
Same PCIe Gen5 storage-controller category, but package, pinout and SM2508-specific interface compatibility are not verified

📋 Referenzalternative (nicht im Katalog)

[DATA_NEEDED: additional verified drop-in MPN]

✅ Drop-In
📦 [DATA_NEEDED: verified package]
No additional verified same-package, pin-compatible SM2508 alternative is present in the supplied data

📋 Referenzalternative (nicht im Katalog)

SM2508 Grenzwerte & elektrische Eigenschaften

Product Type PCIe Gen5 x4 NVMe SSD controller
Host Interface PCI Express 5.0 x4
Storage Protocol NVMe 2.0
NAND Channel Count 8 channels
Manufacturing Process TSMC 6 nm process
Target Application AI-capable PC notebooks
Controller Positioning High-performance, low-power SSD controller
Reported Efficiency Improvement Up to 70% versus competitors, manufacturer claim
Example Sequential Read Performance Up to 14,000 MB/s, engineering-sample SSD claim
Example Random Read Performance 2,000,000 IOPS, engineering-sample SSD claim
Example SSD Form Factor M.2 2280
Example SSD Capacity Range 1 TB to 2 TB
Example Active Efficiency Approximately 2,200 MB/W, manufacturer presentation claim
Competitor Example Efficiency 1,273 MB/W, manufacturer presentation claim

SM2508 standard Pinbelegungsleitfaden

Pinbelegung für SM2508 (standard-Gehäuse). Dieser digitale IC umfasst GPIO, Kommunikationsschnittstellen (UART, SPI, I2C) und Versorgungspins. Alternative Pin-Funktionen und Konfigurationsoptionen entnehmen Sie dem Herstellerdatenblatt. Unverzichtbar für Embedded-System-Design und PCB-Layout.

Pinbelegungsdiagramm für SM2508 im standard-Gehäuse

Keine detaillierten Pinbelegungsdaten verfügbar für SM2508.

Siehe die Datenblatt für die vollständige Pin-Konfiguration.

Typische Anwendungen

SM2508 ist geeignet für 6 Anwendungs: AI-Capable PC Notebooks, High-Performance Desktop PCs, Gaming PCs and Game-Asset Storage, Content-Creation Workstations, AI Workload Storage Caches, PCIe Gen5 Storage Expansion.

📱

AI-Capable PC Notebooks

The Silicon Motion SM2508 is specifically positioned for AI-capable PC notebooks that require high-density, high-performance and lower-power storage. Its PCIe 5.0 x4 interface and NVMe 2.0 support provide a modern host connection for large datasets, model files and compute-heavy applications. The manufacturer describes SM2508 as an eight-channel controller manufactured on TSMC's 6 nm process, which supports the stated efficiency and integration goals. In a notebook, the SSD integrator must still manage thermals, power states, NAND qualification and battery-oriented performance profiles. The controller can help reduce storage-related latency, but its benefit depends on the complete firmware and NAND configuration rather than peak bandwidth alone.

🖥️

High-Performance Desktop PCs

SM2508 is suitable for a desktop PC platform that exposes PCIe 5.0 x4 to an NVMe SSD and needs high throughput for file transfers, content creation or local data processing. The verified product brief emphasizes high performance and low power, while sample-related sources report up to 14,000 MB/s sequential read performance and 2,000,000 random-read IOPS on selected engineering-sample configurations. Desktop integration generally provides more cooling flexibility than a notebook, but the SSD still requires validated NAND mapping, firmware, power management and a compatible heatsink strategy. Use the stated sample figures as an initial benchmark, not as a guaranteed production specification.

🎮

Gaming PCs and Game-Asset Storage

The SM2508 platform can support gaming PCs that use a PCIe Gen5 x4 M.2 2280 drive. High sequential bandwidth may improve loading of large game assets, while random-read capability can reduce latency when many assets are accessed. Published engineering-sample information reports 2,000,000 random-read IOPS, but gaming performance also depends on sustained write behavior, host queueing, shader compilation, SSD firmware and the CPU and GPU configuration. Thermals are important in compact gaming systems because sustained workloads can expose the controller and NAND to heat. Validate with the exact game library, background activity and the intended SSD capacity before selecting the controller.

🎥

Content-Creation Workstations

For video editing, 3D rendering and large project storage, SM2508 provides a PCIe Gen5 x4 NVMe controller path for high-bandwidth local media and cache operations. The eight-channel architecture and 6 nm process can support dense, power-conscious storage designs, while the NVMe 2.0 interface aligns with modern host platforms. Actual workstation results depend on sustained sequential writes, DRAM population, NAND wear state and cooling. A workstation SSD should be qualified for sustained workloads rather than selected only by sequential-read headline figures. Use SMART monitoring, thermal throttling tests and workload-specific benchmarks to confirm that the complete drive maintains acceptable write performance.

🧠

AI Workload Storage Caches

SM2508 can serve as the controller foundation for storage used by AI data pipelines when the host platform provides PCIe 5.0 x4. Fast access to training data, model checkpoints and feature stores can reduce storage stalls during preprocessing and repeated reads. The verified source specifically mentions AI-capable PC notebooks and increasing generative-AI workloads, but it does not guarantee workload-specific latency or throughput. The SSD integrator must select suitable NAND, DRAM and firmware and verify endurance, queue behavior and power limits. In compact AI systems, expose the thermal design early because a high-bandwidth controller and NAND package can otherwise reduce sustained performance when thermal limits are reached.

🔌

PCIe Gen5 Storage Expansion

SM2508 is applicable to PCIe Gen5 storage expansion designs where a host board, workstation or desktop provides an M.2 or equivalent PCIe 5.0 x4 connection. Published sample configurations use the M.2 2280 form factor and capacities from 1 TB to 2 TB, giving integrators a reference for compact high-capacity storage. The controller's NVMe 2.0 and eight-channel characteristics may be useful when designing a modern client SSD, but the interface to the NAND array remains a separate engineering concern. Confirm package pinout, rail requirements, PCIe lane routing, firmware support and enclosure thermals before committing the controller to a new PCB.

Zusammenfassung der empfohlenen Produkte

SM2508 Silicon Motion Technology Corp. Verwendet in: AI-Capable PC Notebooks, High-Performance Desktop PCs, Gaming PCs and Game-Asset Storage, Content-Creation Workstations, AI Workload Storage Caches, PCIe Gen5 Storage Expansion XPG MARS 980 BLADE Related PCIe Gen5 x4 M.2 SSD reference Verwendet in: AI-Capable PC Notebooks, High-Performance Desktop PCs, Gaming PCs and Game-Asset Storage, Content-Creation Workstations, AI Workload Storage Caches, PCIe Gen5 Storage Expansion
What is Silicon Motion SM2508?
Silicon Motion SM2508 is a high-performance, low-power PCIe Gen5 SSD controller solution for AI-capable PC notebooks. According to Silicon Motion's SM2508 product brief, it is an eight-channel PCIe 5.0 x4 NVMe 2.0 controller manufactured on TSMC's 6 nm process. It is designed for storage systems requiring high density, high performance and lower power. The SM2508 is a controller component, not a complete SSD; NAND, DRAM, firmware, PCB layout and thermal design determine the finished drive's performance.
What interface does the SM2508 support?
The SM2508 supports a PCI Express 5.0 x4 host interface and NVMe 2.0 storage operation. The manufacturer describes it as an eight-channel PCIe 5.0 x4 NVMe controller. The PCIe link connects the SSD controller to the host system, while NVMe defines the command and storage-management protocol. Exact lane configuration, power-management behavior and platform compatibility should be confirmed with Silicon Motion and the SSD integrator. The available verified sources do not provide the controller package pinout.
Is SM2508 an SSD or a controller?
SM2508 is an SSD controller, not a finished solid-state drive. Silicon Motion describes it as a PCIe Gen5 SSD controller solution. An SSD made with the SM2508 also requires compatible NAND flash, optional or required DRAM configuration, firmware, a PCB, power delivery and thermal management. Published engineering-sample drives use the M.2 2280 form factor and report capacities from 1 TB to 2 TB, but those system specifications do not define every electrical characteristic of the controller package.
What process technology does SM2508 use?
SM2508 is manufactured on TSMC's 6 nm process according to the verified SSD Wiki and industry source snippets. The 6 nm process is relevant to a PCIe Gen5 storage controller because it supports advanced high-speed digital integration and power-efficiency design. It does not by itself guarantee a particular SSD's throughput, latency or thermal performance. Those results depend on the NAND type, controller firmware, PCIe link, memory configuration, PCB layout and workload. Other process and electrical details were not supplied in the verified data.
What performance has been reported for SM2508 SSDs?
Published engineering-sample SSD information reports up to 14,000 MB/s sequential read performance and 2,000,000 random-read IOPS. Those figures describe particular sample drives rather than guaranteed SM2508 controller limits. A source for a 1 TB engineering sample identifies PCIe 5.0 x4 and NVMe 2.0, while a separate XPG MARS 980 BLADE datasheet lists up to 14,000/13,000 MB/s speeds for a related PCIe Gen5 x4 M.2 SSD. Compare the exact SSD model and test conditions before using these figures for design targets.
How efficient is the SM2508?
Silicon Motion claims up to 70% better efficiency for SM2508 compared with competitors. A company presentation cited in the verified results gives an example of approximately 2,200 MB/W for SM2508 versus 1,273 MB/W for a competitor, which is a claimed increase of about 70%. This comparison depends on workload, SSD configuration and test methodology. Independent validation is necessary for a production decision, particularly in a thin notebook enclosure where thermal dissipation and power limits are constrained.
Where can I download the SM2508 datasheet?
The official Silicon Motion SM2508 product brief is available at https://www.siliconmotion.com/download/DWjq/a/SM2508_PB_EN.pdf. The verified search results also identify a Chinese-language SM2508 product brief at https://www.siliconmotion.com/chs/download/DWjq/a/SM2508_PB_CHS.pdf. These documents are product briefs rather than a complete exposed pin-level datasheet. The supplied sources do not provide a public controller package pinout, pin count or definitive electrical table, so those fields remain marked as data needed.
Where can I find the SM2508 pinout?
A verified public SM2508 pinout is not present in the supplied sources. The available official material is a product brief, while the package type, pin count and pin names are unavailable. The pinout field is therefore null rather than guessed. Before designing a controller PCB or replacing an existing SM2508 implementation, request the detailed electrical datasheet, package drawing, reference design and pin-compatibility information directly from Silicon Motion. Do not infer the pinout from a generic SSD-controller package.
Can SM2508 be used in an AI-capable notebook?
Yes, Silicon Motion specifically targets AI-capable PC notebooks with SM2508. The stated design goals are high density, high performance and lower power, which align with notebooks that need fast storage for AI datasets and compute-heavy workflows. The controller still needs a complete SSD implementation and a platform that supports PCIe 5.0 storage. Confirm thermal performance, power limits, NAND support and firmware validation in the exact notebook enclosure. The verified product brief does not establish a universal notebook compatibility list.
What is the best drop-in replacement for SM2508?
No verified drop-in replacement for SM2508 is identified in the supplied data. The available cross-reference results are generic search tools and do not name a controller with the same package, pinout, electrical interface and firmware-compatible footprint. Because a storage controller replacement requires more than matching PCIe and NVMe labels, an alternative must be validated against package drawings, pin mapping, NAND support, power domains, firmware and the complete SSD design. No alternative is listed here to avoid presenting a non-compatible part as a drop-in replacement.
What can replace an SM2508 controller?
The verified data does not establish a pin-to-pin replacement for SM2508. A true replacement would need the same package and land pattern, compatible power and signal pins, compatible NAND channels and an equivalent firmware and validation path. Phison controllers and other PCIe Gen5 controllers named in industry discussion may offer similar functionality, but the supplied sources do not verify same-package drop-in compatibility for SM2508. Treat them as engineering alternatives to investigate, not as drop-in parts, until Silicon Motion or the SSD vendor confirms interchangeability.
Is SM2508 suitable for a gaming PC?
SM2508 is technically suitable for a gaming PC when the SSD vendor qualifies a controller-based drive for that platform. PCIe 5.0 x4 and NVMe 2.0 can benefit systems that install compatible Gen5 drives, while an engineering sample has been reported at up to 14,000 MB/s sequential read and 2,000,000 random-read IOPS. Those figures are workload- and sample-dependent. Gaming users should also consider sustained-write behavior, thermals, DRAM requirements, firmware maturity and platform support rather than peak transfer speed alone.
What is the difference between SM2508 and other PCIe 5 SSD controllers?
SM2508 differs from other PCIe 5 SSD controllers in its combination of eight channels, NVMe 2.0 support, a TSMC 6 nm process and a stated focus on notebook power efficiency. Competing controllers mentioned in the verified industry results include Phison PS5026-E26 and Innogrit IG5666, with reported 12 nm process nodes. A controller comparison must also include package, pinout, NAND support, DRAM topology, firmware, thermal performance and SSD qualification; matching PCIe generation alone does not establish equivalence or drop-in replacement.
Is SM2508 currently in stock and what is its price?
Stock and distributor pricing for SM2508 are not established in the supplied verified data. The search results include distributor and comparison-tool pages, but no authorized distributor listing with current inventory, unit price or lead time is provided for the controller itself. Therefore the availability field uses BackOrder and all price tiers are marked as data needed. Contact Silicon Motion or an authorized SSD integrator for quotation, sample availability and production lead time. Do not infer availability from published engineering-sample SSD pages.
What compliance information is available for SM2508?
The supplied verified sources do not provide RoHS, REACH, AEC-Q100, lead-free, halogen-free or conflict-minerals declarations for SM2508. The compliance fields are therefore unknown or not applicable only where the supplied data supports that conclusion; no assumption of compliance is made. SSD integrators should request the controller's material and environmental declarations from Silicon Motion and verify the finished SSD's compliance separately. Compliance of an SSD based on the controller is not automatically established by the controller's application positioning.

Technische Referenzdaten für SM2508 – Vergleich, Designhinweise und Compliance-Informationen.

Auswahlhilfe

Choose SM2508 when designing a PCIe 5.0 x4 NVMe SSD for an AI-capable notebook or another system that prioritizes high-density, high-performance and power-conscious storage. Its strongest documented differentiators are eight-channel operation, NVMe 2.0 support and TSMC 6 nm manufacturing. Treat Phison PS5026-E26, Innogrit IG5666, E28 and E31T as engineering comparison candidates only: the supplied sources do not verify identical packages, pinouts, electrical interfaces or firmware compatibility, so none should be treated as a confirmed drop-in replacement. For an existing SSD redesign, require the complete SM2508 package and electrical documentation, then validate NAND support, DRAM topology, firmware, power delivery, PCIe signal integrity, thermals and production availability with the controller vendor. Peak sample-drive figures are useful for architecture planning, but not sufficient for a production guarantee.

Vergleich mit Alternativen

Parameter Dieses Produkt PS5026-E26 IG5666 E28 E31T
Product Type PCIe Gen5 x4 NVMe SSD controller PCIe Gen5 SSD controller PCIe Gen5 SSD controller PCIe Gen5 SSD controller PCIe Gen5 SSD controller
PCIe Interface PCIe 5.0 x4 PCIe 5.0 class; exact lane configuration not verified PCIe 5.0 class; exact lane configuration not verified PCIe Gen5 class; exact lane configuration not verified PCIe Gen5 class; exact lane configuration not verified
Brand Silicon Motion Phison Innogrit Phison Phison

Wichtigste Unterscheidungsmerkmale

  • Notebook-focused positioning (vs. PS5026-E26)
  • Reported advanced process node (vs. PS5026-E26)
  • Eight-channel NVMe 2.0 controller identity (vs. IG5666)
  • Published efficiency claim (vs. E28)

Designhinweise

Do not qualify the SM2508 from peak transfer-rate figures alone. Validate the controller and NAND package in the intended M.2 enclosure, including the stated PCIe 5.0 workload and sustained sequential-write cases. The product brief emphasizes lower power, while a manufacturer presentation claims approximately 2,200 MB/W, but the supplied data does not provide junction-temperature limits, package thermal resistance or controller power dissipation. Use the exact SSD design's thermal sensor behavior and chassis airflow conditions as the basis for production qualification.

A new SM2508 controller PCB requires the detailed package drawing, electrical datasheet, reference design and pinout; those items are not present in the supplied sources. Before routing PCIe 5.0 x4, confirm the package pin assignment, reference-clock requirements, power rails, reset or initialization requirements and NAND-side interfaces. Treat the public product brief as architecture information rather than a complete PCB design guide. A package or pinout error can prevent boot, damage the controller or create difficult high-speed signal-integrity problems.

PCIe 5.0 signals require short, controlled routing and a properly engineered connector, power-delivery and return-path design. The supplied sources do not specify the SM2500 controller's electrical timing, reference design or package ball map, so exact trace geometry must come from the manufacturer documentation and the SSD integrator's validation results. Keep the high-speed host interface away from noisy power stages, provide continuous reference planes where applicable, and validate insertion loss, jitter and compliance with the intended platform. Do not infer these values from generic PCIe Gen5 guidance.

Do not confuse reported engineering-sample SSD specifications with guaranteed controller specifications. The verified figures of up to 14,000 MB/s sequential read and 2,000,000 random-read IOPS belong to particular sample drives and depend on NAND, DRAM, firmware, workload and thermal conditions. Similarly, the 70% efficiency statement is a manufacturer comparison claim rather than a universal result. Ask the SSD vendor for benchmark conditions, power measurements, NAND qualification, endurance data and firmware support before committing SM2508 to a production platform.

Compliance-Informationen

RoHS
Unknown
REACH
Unknown
AEC-Q100
Unknown
Bleifrei
Unknown
Halogenfrei
Unknown
Konfliktmineralien
Unknown

No controller-specific RoHS, REACH, AEC-Q100, lead-free, halogen-free or conflict-minerals declarations are included in the supplied verified data. Finished-SSD compliance must be evaluated separately by the SSD integrator.

Ähnliche Suchanfragen

SM2508 SM2508 datasheet PDF Silicon Motion SM2508 controller SM2508 PCIe 5.0 x4 NVMe 2.0 SM2508 8-channel SSD controller SM2508 TSMC 6 nm SM2508 AI-capable PC notebook SM2508 PCIe Gen5 SSD SM2508 vs PS5026-E26 SM2508 vs IG5666 SM2508 drop-in replacement SM2508 price and availability SM2508 controller package pinout SM2508 14000 MB/s 2,000,000 IOPS SM2508 SSD controller efficiency

Verwandte Bauteile & Begriffe

Silicon Motion SM2508 PCIe Gen5 x4 NVMe 2.0 SSD controller storage controller PCI Express controller solid-state drive NAND flash TSMC 6 nm process AI-capable PC notebook M.2 2280 eight-channel architecture PCIe 5.0 NVMe SSD power efficiency PCIe 5.0 x4 SSD Phison PS5026-E26 Innogrit IG5666 E28 E31T
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