NORフラッシュ市場シェア分析、業界動向と統計、成長予測 2026-2031年

NORフラッシュ市場は2025年に30億5,000万米ドルと評価され、2026年の32億3,000万米ドルから2031年には42億7,000万米ドルに達し、予測期間（2026～2031年）中に5.75%の年平均成長率（CAGR）で成長すると予測されています。この成長の勢いは、先進運転支援システム（ADAS）におけるコンテンツの増加、IoTエッジノードでの利用拡大、そして産業オートメーションへの新たな投資を反映しています。シリアルアーキテクチャは、そのピン数が少なく、フットプリントがコンパクトで、エネルギー効率が高いため、スペースが限られた製品に適しており、主流となっています。インターフェースのアップグレード、特にQuad SPIおよびOctal SPIは、読み取り帯域幅を向上させ、ブートの高速化とより豊富なコード実行を可能にしています。メーカー各社も、低電圧部品、車載グレードの機能安全認証、そして信頼性を犠牲にすることなく密度を向上させる3D NORの初期パイロットで対応しています。

セグメント分析

• シリアル製品は、4ピンから6ピンへのインターフェース、小型パッケージ、そして組み立ての複雑さの低さを反映し、2025年の市場シェアの88.67%を占めました。パラレルNORは、ヘッドアップディスプレイやフェイルセーフクラスターなど、真のランダムバイトアクセスが必須となる用途では依然として重要ですが、マイクロコントローラーやFPGAサプライヤーがシリアルコードストレージに移行するにつれて、そのフットプリントは縮小しています。
• コンポーネントベンダーは、シリアルNORに検証済みのドライバスタックをバンドルすることで、OEMの市場投入期間を短縮しています。新興の3D NORプロトタイプは、シリアルフットプリントで最初に登場し、このアーキテクチャにさらなる密度とコストの追い風をもたらします。こうした状況において、NORフラッシュ市場は、今後10年間を通じてシリアルデバイスのロードマップを有利に進めていくでしょう。
• Quad SPIは2025年に40.72%の売上高を達成し、主流のマイクロコントローラを支えました。このセグメントのCAGRは、インストールベースがピークを迎えるにつれて緩やかに成長しますが、Octal/xSPIは、瞬時に起動するLinuxまたはAUTOSARイメージを必要とするワークロードで7.15%の成長率を記録しています。OctalはJEDEC xSPIプロトコルにも準拠しているため、容量間のピン互換性を重視する自動車Tier 1および産業用SI企業において、NORフラッシュの市場シェア拡大を可能にします。
• Octal/xSPI部品のNORフラッシュ市場規模は、2031年までに大幅に増加すると予測されています。下位互換性のあるソフトウェアフックにより移行が容易になり、設計者は基板の再設計なしに段階的に帯域幅をアップグレードできます。サプライヤーは、インターフェースの進化とセキュリティおよび機能安全オプションを融合させ、プレミアムソケットをターゲットにしています。
• 256Mbを超えるデバイスは、高度なインフォテインメント・ヘッドユニットやプログラマブル・ロジック・コントローラ（PLC）への適合性から、2025年には19.94%の市場シェアを獲得しました。一方、64Mb以下（32Mb超）のデバイスは、ファームウェアを豊富に搭載するIoTノードの容量とコストのバランスが取れているため、8.12%と最も高い成長率を記録しました。
• 高密度化ロードマップでは、積層ダイや新たな3Dレイアウトを活用し、平面的なスケーリングの限界を緩和しようとしています。しかし、エッジデバイスにおけるコード拡張と厳しい部品表（BOM）の制約が重なる32～64Mbソケットでは、数量成長が引き続き最も顕著になると予想されます。ベンダーは、密度レベルを問わずピン互換のアップグレードパスを提供することで、OEMの再設計負担を最小限に抑えています。
• NOR フラッシュ市場は、タイプ (シリアル、パラレル)、インターフェース (SPI シングル/デュアルなど)、密度 (2 Mb 以下など)、電圧 (3V クラスなど)、エンドユーザー アプリケーション (民生用電子機器など)、プロセス テクノロジー ノード (90 nm 以上など)、パッケージ タイプ (WLCSP/CSP など)、および地域 (北米など) によってセグメント化されています。

NOR Flash Market Analysis

The NOR flash market was valued at USD 3.05 billion in 2025 and estimated to grow from USD 3.23 billion in 2026 to reach USD 4.27 billion by 2031, at a CAGR of 5.75% during the forecast period (2026-2031). Growth momentum reflects rising content in advanced driver-assistance systems (ADAS), wider use in IoT edge nodes, and renewed investment in industrial automation. Serial architectures dominate because their low pin count, compact footprint, and energy efficiency align with space-constrained products. Interface upgrades—especially Quad and Octal SPI—are lifting read bandwidths, enabling faster boot and richer code execution. Manufacturers are also responding with lower-voltage parts, automotive-grade functional-safety certifications, and early 3D NOR pilots that raise density without sacrificing reliability.

Global NOR Flash Market Trends and Insights

Firmware–intensive ADAS and Domain Controllers Accelerating Automotive-grade NOR Demand

Automotive platforms are migrating from distributed electronic control units to domain and zone architectures that centralize real-time firmware. NOR Flash delivers deterministic read latency and instant-on execution, attributes that underpin functional safety targets. Infineon’s SEMPER family, now ASIL-D certified, demonstrates how integrated error-checking and dual-bank redundancy strengthen code-storage resilience. As Level 2+ and Level 3 features proliferate, demand for 512 Mb–2 Gb serial parts is rising, propelling automotive NOR volumes at 7.13% CAGR through 2030.

Quad/Octal SPI Adoption for Fast-Boot IoT Edge Devices across Global Manufacturing Hubs

Quad SPI already powers more than half of IoT code-storage sockets, yet Octal/xSPI is emerging because it pushes sustained read bandwidths to 400 MB/s while halving download times. Synopsys reports that xSPI cuts pin-count overhead versus parallel memory, easing PCB routing and lowering BOM cost. GigaDevice’s GD25LX series shows an 80% reduction in firmware load time, enabling real-time analytics at the edge. This throughput benefit is unlocking richer sensor-fusion and over-the-air update features in industrial settings.

Cost Premium over NAND Above 256 Mb Limiting High-Density Consumer Adoption

When code size grows beyond 256 Mb, Serial NAND or eMMC often displace NOR because they offer two to five times lower cost per bit. Vendors are countering with hybrid designs, such as GigaDevice’s QSPI NAND—that deliver NOR-like random read at NAND economics. Nevertheless, high-density consumer devices will continue to evaluate total system cost before selecting NOR.

Other drivers and restraints analyzed in the detailed report include:

• Constellation-Scale LEO Satellites Requiring Radiation-Hardened NOR Flash Devices
• China’s 55 nm and 40 nm Indigenous Process Push for NOR Self-Sufficiency
• Scaling Ceilings Beyond 45 nm Steering OEM Roadmaps Toward MRAM/ReRAM Substitutes

For complete list of drivers and restraints, kindly check the Table Of Contents.

Segment Analysis

Serial products supplied 88.67% of the 2025 market share, reflecting their four-to-six-pin interface, smaller packages, and lower assembly complexity. Parallel NOR remains relevant where true random byte access is mandatory, such as heads-up displays and fail-safe clusters, but its footprint is narrowing as microcontroller and FPGA suppliers migrate to serial code storage.

Component vendors bundle Serial NOR with pre-verified driver stacks, accelerating time-to-market for OEMs. Emerging 3D NOR prototypes will debut first in serial footprints, giving the architecture another density and cost tailwind. In this context, the NOR Flash market continues to favor Serial device roadmaps through the decade.

Quad SPI delivered 40.72% revenue in 2025, underpinning mainstream microcontrollers. The segment’s CAGR eases as installed bases peak, while Octal/xSPI climbs at 7.15% on workloads that need instant-on Linux or AUTOSAR images. Octal also aligns with JEDEC xSPI protocol, enabling NOR Flash market share gains among automotive Tier 1s and industrial SIs that value pin compatibility across densities.

The NOR Flash market size for Octal/xSPI parts is projected to jump significantly by 2031. Backward-compatible software hooks ease migration; hence, designers can phase-upgrade bandwidth without board redesign. Suppliers are merging interface advancements with security and functional-safety options to target premium sockets.

Devices with greater than 256 Mb captured 19.94% market share in 2025 due to their suitability for sophisticated infotainment head units and programmable logic controllers. Meanwhile, 64-Mb-and-less (greater than 32 Mb) parts grow fastest at 8.12% because they balance capacity and cost for firmware-rich IoT nodes.

Higher-density roadmaps leverage stacked-die or emerging 3D layouts to mitigate planar scaling ceilings. However, volume growth will remain strongest in 32-64 Mb sockets where code expansion in edge devices collides with tight bill-of-materials constraints. Vendors provide pin-compatible upgrade paths across density steps, minimizing redesign effort for OEMs.

NOR Flash Market is Segmented by Type (Serial, Parallel), Interface (SPI Single/Dual, and More), Density (2 Mb and Less, and More), Voltage (3V Class, and More), End-User Application (Consumer Electronics, and More), Process Technology Node (90 Nm and Older, and More), Packaging Type (WLCSP/CSP, and More), and Geography (North America, and More). The Market Forecasts are Provided in Terms of Value (USD) and Volume (Units).

Geography Analysis

Asia Pacific controlled about 60.55% of the NOR Flash market revenue in 2025 and is projected to expand significantly by 2031. China’s semiconductor self-sufficiency drive has drawn considerable capital toward 55 nm and 40 nm serial lines, shifting regional procurement toward domestic vendors. Taiwan continues to supply a significant portion of global wafers, anchoring external customers despite geopolitical risk. Japan and South Korea contribute through long-established fabs; Kioxia’s new Kitakami Fab 2 will add incremental capacity starting late 2025.

North America represents a premium segment specialized in automotive, industrial, and aerospace designs. Government incentives under the CHIPS Act are catalyzing local wafer starts and advanced-packaging projects, diversifying supply away from overseas foundries. Micron is broadening its automotive NOR portfolio, with Li Auto’s cross-domain controller an illustration of U.S. memory inside Chinese EVs.

Europe maintains strict reliability and traceability standards that align with NOR’s functional-safety traits. Infineon’s headquarters in Germany anchors a domestic supply chain serving Tier 1 automotive and Industry 4.0 OEMs. EU policymakers are channeling funds toward a resilient semiconductor ecosystem, which could ease the region’s dependence on Asian foundries while strengthening demand visibility for NOR suppliers.

List of Companies Covered in this Report:

• Winbond Electronics Corporation
• Macronix International Co. Ltd.
• GigaDevice Semiconductor Inc.
• Infineon Technologies AG
• Micron Technology Inc.
• Integrated Silicon Solution Inc.
• Microchip Technology Inc.
• Renesas Electronics Corporation
• Elite Semiconductor Microelectronics Technology Inc.
• Wuhan XMC
• Puya Semiconductor (Shanghai) Co. Ltd.
• Samsung Semiconductor
• Alliance Memory
• Zbit Semiconductor
• YMTC – Xi’an Longsys
• Fudan Microelectronics Group Co. Ltd.
• AMIC Technology Corporation
• BOYA Microelectronics Co. Ltd.
• XTX Technology (Shenzhen) Limited
• Shenzhen Longsys Electronics Co. Ltd.

Additional Benefits:

• The market estimate (ME) sheet in Excel format
• 3 months of analyst support

Table of Contents

1 INTRODUCTION
1.1 Study Assumptions and Market Definition
1.2 Scope of the Study

2 RESEARCH METHODOLOGY

3 EXECUTIVE SUMMARY

4 MARKET LANDSCAPE
4.1 Market Overview
4.2 Market Drivers
4.2.1 Firmware-intensive ADAS and Domain Controllers Accelerating Automotive-grade NOR Demand
4.2.2 Quad/Octal SPI Adoption for Fast-Boot IoT Edge Devices across Global Manufacturing Hubs
4.2.3 Constellation-Scale LEO Satellites Requiring Radiation-Hardened NOR Flash Devices
4.2.4 China’s 55 nm and 40 nm Indigenous Process Push for NOR Self-Sufficiency
4.2.5 Secure Boot and OTA Update Mandates in Industry 4.0 Factories
4.2.6 Low-Power 1.8 V Serial NOR for Wearable/Point-of-Care Healthcare Electronics
4.3 Market Restraints
4.3.1 Cost Premium over NAND Above 256 Mb Limiting High-Density Consumer Adoption
4.3.2 Scaling Ceilings Beyond 45 nm Steering OEM Roadmaps Toward MRAM/ReRAM Substitutes
4.3.3 Foundry Concentration in Taiwan Exposing Supply-Chain Disruption Risk
4.3.4 ASP Compression from Expanding Chinese Capacity Impacting Vendor Margins
4.4 Value / Supply-Chain Analysis
4.5 Macro Trend Impact Analysis
4.6 Regulatory and Technological Outlook
4.7 Porter’s Five Forces Analysis
4.7.1 Bargaining Power of Suppliers
4.7.2 Bargaining Power of Buyers
4.7.3 Threat of New Entrants
4.7.4 Threat of Substitute Products
4.7.5 Intensity of Competitive Rivalry
4.8 Pricing Analysis
4.9 Investment Analysis

5 MARKET SIZE AND GROWTH FORECASTS (VALUE, VOLUME)
5.1 By Type (Value, Volume)
5.1.1 Serial NOR Flash
5.1.2 Parallel NOR Flash
5.2 By Interface (Value)
5.2.1 SPI Single / Dual
5.2.2 Quad SPI
5.2.3 Octal and xSPI
5.3 By Density (Value)
5.3.1 2 Megabit And Less NOR
5.3.2 4 Megabit And Less-NOR (greater than 2mb) NOR
5.3.3 8 Megabit And Less (greater than 4mb) NOR
5.3.4 16 Megabit And Less (greater than 8mb) NOR
5.3.5 32 Megabit And Less (greater than 16mb) NOR
5.3.6 64 Megabit And Less (greater than 32mb) NOR
5.3.7 128 Megabit and Less (greater than 64MB) NOR
5.3.8 256 Megabit and Less (greater than 128MB) NOR
5.3.9 Greater than 256 Megabit
5.4 By Voltage (Value)
5.4.1 3 V Class
5.4.2 1.8 V Class
5.4.3 Wide-Voltage (1.65 V – 3.6 V)
5.4.4 Others – 1.2V Class (and similar sub-1.8V) (2.5V, 5V, etc.)
5.5 By End-user Application (Value, Volume)
5.5.1 Consumer Electronics
5.5.2 Communication
5.5.3 Automotive
5.5.4 Industrial
5.5.5 Other Applications
5.6 By Process Technology Node (Value)
5.6.1 90 nm and Older
5.6.2 65 nm
5.6.3 55 nm (including 58 nm)
5.6.4 45 nm
5.6.5 28 nm and Below
5.7 By Packaging Type (Value)
5.7.1 WLCSP / CSP
5.7.2 QFN / SOIC
5.7.3 BGA / FBGA
5.7.4 Others
5.8 By Geography (Value, Volume)
5.8.1 North America
5.8.1.1 United States
5.8.1.2 Canada
5.8.1.3 Mexico
5.8.2 Europe
5.8.2.1 Germany
5.8.2.2 France
5.8.2.3 United Kingdom
5.8.2.4 Italy
5.8.2.5 Rest of Europe
5.8.3 Asia-Pacific
5.8.3.1 China
5.8.3.2 Japan
5.8.3.3 South Korea
5.8.3.4 Taiwan
5.8.3.5 India
5.8.3.6 South East Asia
5.8.3.7 Rest of Asia-Pacific
5.8.4 Rest of the World

6 COMPETITIVE LANDSCAPE
6.1 Market Concentration
6.2 Strategic Moves
6.3 Market Share Analysis
6.4 Company Profiles (includes Global level Overview, Market level overview, Core Segments, Financials as available, Strategic Information, Market Rank/Share for key companies, Products and Services, and Recent Developments)
6.4.1 Winbond Electronics Corporation
6.4.2 Macronix International Co. Ltd.
6.4.3 GigaDevice Semiconductor Inc.
6.4.4 Infineon Technologies AG
6.4.5 Micron Technology Inc.
6.4.6 Integrated Silicon Solution Inc.
6.4.7 Microchip Technology Inc.
6.4.8 Renesas Electronics Corporation
6.4.9 Elite Semiconductor Microelectronics Technology Inc.
6.4.10 Wuhan XMC
6.4.11 Puya Semiconductor (Shanghai) Co. Ltd.
6.4.12 Samsung Semiconductor
6.4.13 Alliance Memory
6.4.14 Zbit Semiconductor
6.4.15 YMTC – Xi’an Longsys
6.4.16 Fudan Microelectronics Group Co. Ltd.
6.4.17 AMIC Technology Corporation
6.4.18 BOYA Microelectronics Co. Ltd.
6.4.19 XTX Technology (Shenzhen) Limited
6.4.20 Shenzhen Longsys Electronics Co. Ltd.

7 MARKET OPPORTUNITIES AND FUTURE OUTLOOK
7.1 White-space and Unmet Need Analysis

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