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Winbond Electronics Corporation W25Q10EWSNIG
- Part No.:
- W25Q10EWSNIG
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
W25Q10EWSNIG.pdf
- Description:
- IC FLASH 1MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,813
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Product details
Overview
W25Q10EWSNIG from Winbond is a 1 M-bit (128 KB) serial flash memory IC supporting Standard, Dual, and Quad SPI interfaces with 4 KB uniform sectors, 1.65–1.95 V single-supply operation, and up to 104 MHz clock frequency - used for code shadowing, XIP execution, and firmware storage in space-constrained embedded systems.
For engineers reviewing the W25Q10EWSNIG datasheet, W25Q10EWSNIG pinout, W25Q10EWSNIG application, or W25Q10EWSNIG equivalent, key selection considerations include SOIC-8 (SN) package compatibility, Quad SPI enable (QE bit) configuration, hardware write protection via /WP pin, and JEDEC-compliant identification support including 64-bit unique ID.
Technical Context
The W25Q10EWSNIG implements a SPI-compatible command set with three operational modes: Standard SPI (DI/DO), Dual SPI (IO0/IO1), and Quad SPI (IO0–IO3), where /WP and /HOLD become IO2 and IO3 only when the non-volatile Quad Enable (QE) bit in Status Register-2 is set. It supports SPI Modes 0 and 3 with active-low /CS, /WP, and /HOLD.
Internally, the memory array comprises 512 pages of 256 bytes each, organized into 32 × 4 KB sectors, 4 × 32 KB blocks, and 2 × 64 KB blocks. Erase/program suspend/resume capability, 100K program-erase cycles per sector, and >20-year data retention are confirmed functional attributes tied directly to this part number.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 M-bit (128 KB), organized as 512 × 256-byte pages |
| Supply Voltage | 1.65 V to 1.95 V - enables low-power operation in battery-backed or ultra-low-voltage microcontroller systems |
| SPI Clock Max | 104 MHz - delivers up to 416 MB/s effective throughput in Quad I/O mode using Fast Read Quad I/O (EBh) |
| Erase Granularity | Uniform 4 KB sectors, plus 32 KB and 64 KB blocks - allows fine-grained firmware partitioning and parameter storage |
| Write Protection | Hardware /WP pin + software-configurable BP2–BP0, TB, SEC, CMP bits - enables selective sector-level lockdown without firmware changes |
| Data Retention | 20+ years - validated under standard operating conditions, critical for long-lifecycle industrial deployments |
| Endurance | 100,000 program-erase cycles per sector - supports frequent OTA update logging and runtime configuration storage |
Pinout & Package
W25Q10EWSNIG is packaged in an 8-pin SOIC 150-mil (package code SN), with gull-wing leads, 1.27 mm pitch, and RoHS-compliant matte tin finish.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable signal; must transition high→low after power-up before instruction acceptance |
| 2 DO (IO1) | Data Output / I/O1 | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad SPI; high-impedance when /CS high or /HOLD active |
| 3 /WP (IO2) | Write Protect Input / I/O2 | Hardware lock for Status Register writes; repurposed as IO2 in Quad SPI when QE=1 |
| 4 GND | Ground Reference | Primary return path for VCC supply and all I/O signals; requires low-impedance PCB connection |
| 5 DI (IO0) | Data Input / I/O0 | Unidirectional input in Standard SPI; bidirectional I/O in Dual/Quad SPI; sampled on CLK rising edge |
| 6 CLK | Serial Clock Input | Master-generated timing signal; supports SPI Modes 0 and 3; must be stable before /CS assertion |
| 7 /HOLD (IO3) | Hold Input / I/O3 | Pauses ongoing SPI transaction while /CS remains low; repurposed as IO3 in Quad SPI when QE=1 |
| 8 VCC | Power Supply | 1.65–1.95 V nominal; internal voltage regulators derive core logic and charge-pump voltages |
Key Features
| Feature | Design Value |
|---|---|
| Dual/Quad SPI Support | Enables 2× (Dual) or 4× (Quad) data rate vs Standard SPI - reduces boot time for code shadowing and XIP use cases |
| Erase/Program Suspend | Allows interruption of long erase/program operations to service higher-priority tasks, then resume from exact point - improves real-time system responsiveness |
| 64-bit Unique ID | Factory-programmed read-only identifier - enables secure device authentication and firmware binding in IoT edge nodes |
| Security Registers | Three 256-byte OTP-lockable registers - store cryptographic keys or calibration data with irreversible write protection |
| SFDP Register | JEDEC JESD216-compliant parameter table - allows host bootloader to auto-detect memory geometry and timing without hard-coded assumptions |
Applications
| Boot Code Storage | Firmware Update Storage |
|---|---|
Use Scenario: Storing primary bootloader and application firmware images for microcontrollers lacking internal flash large enough for full firmware. IC Role / Device Role / Timing Role: Non-volatile code storage accessed at power-on reset via SPI XIP or sequential read; supports fast quad-read for sub-100ms boot latency. Use Value: Eliminates need for external parallel NOR flash or larger MCU variants; 4 KB sector granularity enables atomic firmware updates without erasing entire image. | Use Scenario: Holding staged firmware patches downloaded over BLE/Wi-Fi before validation and activation. IC Role / Device Role / Timing Role: Secure, wear-leveled parameter and binary storage with suspend-capable erase/program - ensures OTA integrity during power loss. Use Value: 100K endurance and 20-year retention guarantee safe multi-year field updates; /WP pin prevents accidental overwrite during wireless transfer. |
| Configuration Parameter Storage | Industrial Sensor Calibration Data |
Use Scenario: Persisting user-defined settings (network credentials, display brightness, alarm thresholds) across power cycles in smart home hubs. IC Role / Device Role / Timing Role: Low-power, byte-addressable NV storage interfaced by MCU's SPI peripheral; accessed infrequently but requiring guaranteed retention. Use Value: Hardware write protection (/WP + BP bits) prevents corruption from EMI or brown-out events; 1 µA power-down current extends battery life in always-on devices. | Use Scenario: Storing factory-calibrated sensor coefficients and linearization tables in programmable logic controllers and process transmitters. IC Role / Device Role / Timing Role: Immutable reference data storage with OTP-locked security registers - accessed once at startup to initialize ADC/DAC compensation routines. Use Value: Three 256-byte OTP registers ensure calibration data cannot be altered post-deployment; unique 64-bit ID binds calibration to specific hardware unit. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT25SF011-SSHD-B | 1 M-bit, 2.3–3.6 V supply, SOIC-8, supports Quad SPI but lacks SFDP register and OTP security registers | Requires fixed timing initialization; no auto-discovery or hardware-bound calibration storage | Choose when operating above 1.95 V or when SFDP/OTP features are unnecessary |
| MX25U1035FZUI | 1 M-bit, 1.65–2.0 V, USON-8 only (no SOIC option), includes Quad Enable but no /HOLD pin function | Not pin-compatible with W25Q10EWSNIG due to missing /HOLD and different package; requires PCB redesign | Consider only for new USON-based designs prioritizing footprint size over legacy SOIC compatibility |
Compared with AT25SF011-SSHD-B and MX25U1035FZUI, the W25Q10EWSNIG uniquely combines SOIC-8 pinout, 1.65–1.95 V operation, /HOLD functionality, SFDP auto-configuration, and OTP-secured calibration storage - making it optimal for retrofitting legacy 8-pin SPI flash sockets in industrial and automotive control units.
Availability
W25Q10EWSNIG is available at Aetrix Electronics and suitable for industrial HMI panels, automotive body control modules, and medical diagnostic equipment requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for W25Q10EWSNIG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Winbond Electronics is a Taiwan-based semiconductor company specializing in specialty memory solutions, including SPI NOR flash, RAM, and mobile DRAM, serving industrial, automotive, and consumer markets since 1987.
The W25Q series targets cost-sensitive, space-constrained embedded systems needing reliable, low-voltage serial flash with advanced features like Quad SPI, suspend/resume, and secure OTP storage - specifically designed for firmware, boot code, and calibration data retention.
FAQ
What is the maximum SPI clock frequency supported by the W25Q10EWSNIG?
The W25Q10EWSNIG supports SPI clock frequencies up to 104 MHz in Standard and Dual SPI modes. In Quad SPI mode using Fast Read Quad I/O (EBh), the effective data rate reaches 416 MB/s (104 MHz × 4). This specification is validated across the full 1.65–1.95 V supply range and –40°C to +85°C operating temperature, as confirmed in the AC Electrical Characteristics section of the official datasheet.
Does the W25Q10EWSNIG support Quad SPI mode out of the box?
No, the W25Q10EWSNIG requires explicit configuration to enable Quad SPI mode. The non-volatile Quad Enable (QE) bit in Status Register-2 must be set using the Write Status Register instruction (31h). Until QE=1, pins /WP and /HOLD remain dedicated to hardware write protection and hold functions, not IO2/IO3. This setting persists across power cycles and is verified in the Status Register Memory Protection section of the datasheet.
How does hardware write protection work on the W25Q10EWSNIG?
Hardware write protection on the W25Q10EWSNIG is implemented via the active-low /WP pin, which - when held low - prevents writes to the Status Register regardless of software commands. This protection operates independently of the Block Protect (BP2–BP0) bits and remains active even if the QE bit is set. The /WP pin is functional only in Standard and Dual SPI modes; it becomes IO2 in Quad SPI mode, disabling hardware protection unless configured otherwise in the status register.
What package type does the W25Q10EWSNIG use, and is it lead-free?
The W25Q10EWSNIG uses an 8-pin SOIC 150-mil package (package code SN), with gull-wing leads, 1.27 mm pitch, and matte tin surface finish. It is RoHS-compliant and lead-free, meeting JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) requirements. This package is compatible with standard reflow profiles and manual soldering processes used in industrial PCB assembly.
Can the W25Q10EWSNIG be used for executing code directly from flash (XIP)?
Yes, the W25Q10EWSNIG supports execute-in-place (XIP) operation via Dual and Quad SPI interfaces, enabling microcontrollers to fetch and execute instructions directly from flash without copying to RAM. Fast Read Dual I/O (BBh) and Fast Read Quad I/O (EBh) instructions provide the necessary high-speed random-access performance. XIP functionality requires proper cache configuration and address mapping in the host MCU, and is explicitly validated for code shadowing and direct execution in the General Description section of the datasheet.
W25Q10EWSNIG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 1Mbit
- Memory Organization:
- 128K x 8
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 30µs, 800µs
- Access Time:
- -
- Voltage - Supply:
- 1.65V ~ 1.95V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
W25Q10EWSNIG FAQ
1.How can I place an order for W25Q10EWSNIG through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q10EWSNIG on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for W25Q10EWSNIG reliable?
The price and inventory of W25Q10EWSNIG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q10EWSNIG is usually 5 days.
3.What payment methods are accepted for W25Q10EWSNIG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q10EWSNIG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q10EWSNIG?
W25Q10EWSNIG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q10EWSNIG order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for W25Q10EWSNIG?
For technical support, including W25Q10EWSNIG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q10EWSNIG requirements.
6.How does Aetrix verify that W25Q10EWSNIG is sourced from the original manufacturer or authorized distributors?
All W25Q10EWSNIG products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that W25Q10EWSNIG meets industry standards.
7.What is the process for return or replacement of W25Q10EWSNIG?
All W25Q10EWSNIG units undergo pre-shipment inspection (PSI). If there is an issue with W25Q10EWSNIG, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The W25Q10EWSNIG part is unused and in its original packaging.
Return procedure for W25Q10EWSNIG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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