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Winbond Electronics Corporation W25Q32FVSFIQ
- Part No.:
- W25Q32FVSFIQ
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
W25Q32FVSFIQ.pdf
- Description:
- IC FLASH 32MBIT SPI/QUAD 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,909
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Product details
Overview
W25Q32FVSFIQ from Winbond is a 32M-bit (4MB) serial NOR flash memory IC supporting Standard/Dual/Quad SPI and QPI interfaces, operating at 2.7–3.6V with 104MHz max clock rate, 4KB uniform sector architecture, and integrated security registers. It enables XIP (execute-in-place) code execution in space-constrained embedded systems such as IoT edge nodes and industrial controllers.
For engineers reviewing the W25Q32FVSFIQ datasheet, W25Q32FVSFIQ pinout, W25Q32FVSFIQ application, or W25Q32FVSFIQ equivalent, key selection criteria include Quad Enable (QE) bit configuration, /HOLD vs /RESET pin behavior in 8-pin packages, 4KB sector erase granularity, JEDEC ID and SFDP register compliance, and power-down current (<1µA typical).
Technical Context
The W25Q32FVSFIQ implements a flexible SPI-compatible command set with hardware- and software-controlled write protection, including volatile/non-volatile BP2–BP0, TB, SEC, CMP, and SRP bits. Its status register supports dual-mode operation: Status Register-1 (volatile/non-volatile), Status Register-2 (non-volatile QE bit), and Status Register-3 (DRV1/DRV0, HOLD/RST, WPS).
It features three 256-byte one-time-programmable (OTP) security registers, 64-bit unique device ID, and JEDEC-standard SFDP register for discoverable parameters. The device supports Erase/Program Suspend & Resume, Continuous Read Mode with wrap lengths of 8/16/32/64 bytes, and QPI mode entry via 0x38 instruction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 M-bit (4 MB), organized as 16,384 × 256-byte pages |
| Interface Modes | Standard SPI (4-wire), Dual I/O SPI, Quad I/O SPI, and QPI (6-wire) |
| Max Clock Frequency | 104 MHz (SPI), enabling 208 MB/s dual-I/O and 416 MB/s quad-I/O effective throughput |
| Erase Granularity | Uniform 4 KB sectors (1,024 total), 32 KB blocks (512), 64 KB blocks (64), and full-chip erase |
| Write Endurance | 100,000 program/erase cycles per sector, with >20-year data retention at +25°C |
| Power Supply | Single 2.7 V to 3.6 V supply; active current ≤4 mA, power-down current ≤1 µA (typ.) |
| Operating Temperature | –40°C to +85°C industrial grade, qualified per JEDEC JESD22-A108 |
| Security Features | Three 256-byte OTP security registers, 64-bit unique ID, SFDP register, and programmable block/sector lock |
Pinout & Package
W25Q32FVSFIQ uses the 8-pin SOIC 208-mil package (package code SS), with gull-wing leads, 1.27 mm pitch, and RoHS-compliant matte tin finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable; high-impedance DO output and standby current when high |
| 2 DO (IO1) | Data Output / Bidirectional I/O | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad SPI/QPI |
| 3 /WP (IO2) | Write Protect Input / Bidirectional I/O | Hardware write-protection when low; becomes IO2 in Quad mode (QE=1) |
| 4 GND | Ground Reference | Primary return path for VCC and all I/O signals; requires low-impedance PCB connection |
| 5 DI (IO0) | Data Input / Bidirectional I/O | Unidirectional input in Standard SPI; bidirectional I/O in Dual/Quad SPI/QPI |
| 6 CLK | Serial Clock Input | Rising-edge sampled input for all instructions; timing-critical for setup/hold compliance |
| 7 /HOLD or /RESET (IO3) | Hold/Reset Input / Bidirectional I/O | Hold function active low during /CS low; becomes IO3 in Quad mode (QE=1); no dedicated /RESET in 8-pin package |
| 8 VCC | Power Supply | 2.7–3.6 V nominal; decoupling capacitor (0.1 µF ceramic) required within 5 mm of pin |
Key Features
| Feature | Design Value |
|---|---|
| Quad Peripheral Interface (QPI) | Reduces instruction overhead to 2 clocks per byte, enabling true XIP with continuous read and wrap modes |
| 4 KB Uniform Sector Architecture | Enables fine-grained firmware partitioning-e.g., separate boot loader, application, and parameter sectors-with independent erase control |
| Erase/Program Suspend & Resume | Allows background operations (e.g., logging) to pause flash writes/erases without data loss or timeout failure |
| Volatile & Non-Volatile Status Registers | Supports field-upgradable protection schemes: BP bits can be set non-volatilely for permanent sector lock, or volatilely for debug sessions |
| Three 256-byte Security Registers | Provide tamper-resistant storage for keys, calibration data, or device-specific credentials-each with OTP lock capability |
| JEDEC SFDP & Unique ID | Enables automated flash initialization in bootloader: SFDP provides configurable timing parameters; 64-bit ID ensures secure device identity |
Applications
| Firmware Storage | Secure Boot Configuration |
|---|---|
|
Use Scenario: Storing MCU boot firmware and application binaries in resource-limited microcontrollers with no parallel bus interface. IC Role / Device Role / Timing Role: Primary non-volatile code storage accessed via SPI/XIP; delivers 50 MB/s sustained read throughput during boot sequence. Use Value: Eliminates need for external RAM copy before execution-reducing BOM cost and boot latency by enabling direct code fetch from W25Q32FVSFIQ. |
Use Scenario: Holding immutable root-of-trust keys and signed firmware manifests in industrial gateways requiring secure boot validation. IC Role / Device Role / Timing Role: Secure credential vault using OTP-locked security registers; verified during Power-On Self-Test (POST) before code execution. Use Value: Prevents unauthorized firmware updates by binding cryptographic keys to hardware identity (64-bit UID) and enforcing signature checks. |
| Parameter & Calibration Data | IoT Edge Node Logging |
|
Use Scenario: Retaining factory-calibrated sensor offsets and runtime-tuned PID coefficients across power cycles in HVAC controllers. IC Role / Device Role / Timing Role: Parameter storage with 4 KB sector granularity-allows independent erase/write of calibration data without disturbing firmware. Use Value: Enables field recalibration without firmware reflash; 100K-cycle endurance ensures >10 years of daily updates at 3 writes/day. |
Use Scenario: Buffering time-stamped sensor readings (temperature, humidity, motion) in battery-powered smart meters during network outages. IC Role / Device Role / Timing Role: Low-power data logger using <1 µA power-down mode between 10-second sampling intervals. Use Value: Extends battery life to >5 years on CR2032 by minimizing active time; sector-erase flexibility allows circular buffer management. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L3233FZNI-10G | 32 M-bit, 104 MHz max SPI clock, but lacks QPI mode and SFDP register; only supports Standard/Dual/Quad SPI | No native QPI reduces XIP efficiency; no SFDP requires hardcoded timing parameters in bootloader | Prefer W25Q32FVSFIQ where QPI-based XIP or auto-configurable timing is required |
| S25FL132K0XMFI011 | 32 M-bit, 80 MHz max clock, includes HyperBus interface (not SPI-compatible); different pinout and command set | Requires HyperFlash controller; incompatible with standard SPI host drivers without middleware abstraction | Choose W25Q32FVSFIQ for drop-in SPI compatibility and broader ecosystem support |
Compared with MX25L3233FZNI-10G and S25FL132K0XMFI011, the W25Q32FVSFIQ uniquely combines QPI mode, SFDP register, and 104 MHz performance in an industry-standard 8-pin SOIC footprint-enabling faster boot, simpler firmware porting, and future-proof timing adaptability.
Availability
W25Q32FVSFIQ is available at Aetrix Electronics and suitable for industrial control panels, medical diagnostic devices, and automotive infotainment head units requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for W25Q32FVSFIQ 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 manufacturer specializing in specialty memory solutions, including serial NOR/NAND flash, RAM, and mobile DRAM, serving industrial, automotive, and consumer markets since 1987.
The W25Q32FV family was designed for high-reliability embedded systems needing fast, secure, and pin-efficient code and data storage-emphasizing XIP capability, sector-level protection, and ultra-low power-down operation.
FAQ
What is the package type and lead finish of W25Q32FVSFIQ?
W25Q32FVSFIQ uses the 8-pin SOIC 208-mil package (package code SS) with gull-wing leads, 1.27 mm pitch, and matte tin (Sn) RoHS-compliant lead finish. It measures 5.3 mm × 5.3 mm × 1.95 mm and is rated for industrial temperature range (–40°C to +85°C). This package is compatible with standard reflow profiles and automated optical inspection.
Does W25Q32FVSFIQ support true execute-in-place (XIP) operation?
Yes, W25Q32FVSFIQ supports true XIP via Continuous Read Mode with wrap lengths of 8/16/32/64 bytes and as few as 8 clocks to address memory. When used with QPI mode (enabled via 0x38 instruction), it achieves low instruction overhead and deterministic latency-enabling direct CPU instruction fetch without intermediate RAM buffering in supported microcontrollers.
How does the /HOLD pin behave when Quad SPI mode is enabled on W25Q32FVSFIQ?
When the Quad Enable (QE) bit in Status Register-2 is set to 1, the /HOLD pin on W25Q32FVSFIQ becomes IO3 and loses its hold functionality. In this configuration, the pin operates exclusively as a bidirectional data line for Quad SPI and QPI transactions. Hold functionality is unavailable in Quad mode unless QE is cleared-requiring a mode switch before issuing HOLD commands.
What security mechanisms does W25Q32FVSFIQ provide beyond basic write protection?
W25Q32FVSFIQ provides layered security: three 256-byte OTP security registers for keys or credentials, 64-bit unique device ID for hardware binding, JEDEC SFDP register for authenticated parameter discovery, and individual sector/block lock/unlock commands (36h/39h/3Dh). These features enable secure boot, firmware attestation, and tamper-resistant calibration storage beyond simple /WP pin or BP-bit protection.
Can W25Q32FVSFIQ be used with a microcontroller that only supports Standard SPI?
Yes, W25Q32FVSFIQ is fully backward-compatible with Standard SPI (CLK, /CS, DI, DO, /WP, /HOLD). All core functions-including read, program, and erase-are accessible using standard 0x03, 0x02, and 0x20 instructions. No QPI or Quad SPI configuration is required for basic operation, making it interoperable with legacy SPI controllers lacking dual/quad support.
W25Q32FVSFIQ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 32Mbit
- Memory Organization:
- 4M x 8
- Memory Interface:
- SPI - Quad I/O, QPI
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 50µs, 3ms
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
W25Q32FVSFIQ FAQ
1.How can I place an order for W25Q32FVSFIQ through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q32FVSFIQ 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 W25Q32FVSFIQ reliable?
The price and inventory of W25Q32FVSFIQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q32FVSFIQ is usually 5 days.
3.What payment methods are accepted for W25Q32FVSFIQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q32FVSFIQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q32FVSFIQ?
W25Q32FVSFIQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q32FVSFIQ 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 W25Q32FVSFIQ?
For technical support, including W25Q32FVSFIQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q32FVSFIQ requirements.
6.How does Aetrix verify that W25Q32FVSFIQ is sourced from the original manufacturer or authorized distributors?
All W25Q32FVSFIQ 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 W25Q32FVSFIQ meets industry standards.
7.What is the process for return or replacement of W25Q32FVSFIQ?
All W25Q32FVSFIQ units undergo pre-shipment inspection (PSI). If there is an issue with W25Q32FVSFIQ, 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 W25Q32FVSFIQ part is unused and in its original packaging.
Return procedure for W25Q32FVSFIQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q32FVSFIQ Tags
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M24C02-WMN6TP
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