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Winbond Electronics Corporation W25Q32FVDAIQ
- Part No.:
- W25Q32FVDAIQ
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
W25Q32FVDAIQ.pdf
- Description:
- IC FLASH 32MBIT SPI/QUAD 8DIP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
W25Q32FVDAIQ 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 erase, and integrated security registers. It enables execute-in-place (XIP) code execution in space-constrained embedded systems such as IoT edge nodes and industrial controllers.
For engineers reviewing the W25Q32FVDAIQ datasheet, W25Q32FVDAIQ pinout, W25Q32FVDAIQ application, or W25Q32FVDAIQ equivalent, key selection considerations include Quad Enable (QE) bit configuration for IO2/IO3 remapping, /HOLD vs /RESET functionality per package variant, 4KB sector granularity for firmware partitioning, and JEDEC SFDP register support for auto-configuration.
Technical Context
The W25Q32FVDAIQ implements a unified SPI/QPI command architecture with volatile/non-volatile status register control (BP0–BP2, TB, SEC, QE, DRV0/DRV1), enabling flexible memory protection and I/O driver strength tuning. Its block diagram integrates a 256-byte page buffer, column/row decode logic, high-voltage generators, and three 256-byte OTP-lockable security registers.
It supports hardware-based write protection via /WP and /HOLD pins (active-low), with dual-mode operation: in Standard/Dual SPI, /WP and /HOLD retain dedicated functions; in Quad SPI mode (QE=1), those pins become IO2 and IO3. The /RESET pin is available only on 16-pin SOIC (SF) and TFBGA packages-not on the 8-pin SOIC DA variant of W25Q32FVDAIQ.
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 SPI (2 I/O), Quad SPI (4 I/O), QPI (4-wire with 2-cycle instruction) |
| 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), plus 32 KB and 64 KB blocks (64 total) |
| Write Endurance | 100,000 program/erase cycles per sector, with 20-year data retention at +25°C |
| Supply Voltage | 2.7 V to 3.6 V single supply; 4 mA typical active current, <1 µA power-down current |
| Operating Temperature | –40°C to +85°C industrial grade range |
| Security Features | 64-bit unique ID, JEDEC SFDP register, three 256-byte security registers with OTP locks |
Pinout & Package
W25Q32FVDAIQ uses the 8-pin SOIC 300-mil package (Package Code DA), with no /RESET pin-/HOLD and /WP are dedicated functions. Pin functions are fixed and not remapped by QE bit in this variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable; high-impedance DO output when deasserted; required high-to-low transition before first instruction |
| 2 DO (IO1) | Data Output / I/O1 | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad SPI; driven on CLK falling edge |
| 3 /WP (IO2) | Write Protect Input / I/O2 | Hardware lock for status register writes; disabled in Quad SPI mode (becomes IO2); active-low |
| 4 GND | Ground Reference | Signal and power return path; must be low-impedance for timing integrity and noise immunity |
| 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 reference; controls all data sampling and latching; max 104 MHz |
| 7 /HOLD (IO3) | Hold Input / I/O3 | Pauses ongoing read/write while /CS active; disabled in Quad SPI mode (becomes IO3); active-low |
| 8 VCC | Power Supply | 2.7–3.6 V single supply; decoupling capacitor required near pin for stable core and I/O operation |
Key Features
| Feature | Design Value |
|---|---|
| Continuous Read Mode | As few as 8 clocks overhead to initiate address fetch, enabling true XIP execution without external buffering |
| Quad Peripheral Interface (QPI) | Reduces instruction overhead via 2-clock-cycle opcodes, eliminating separate instruction/data phases for faster burst reads |
| Erase/Program Suspend & Resume | Allows background interrupt handling during long erase cycles (e.g., 64KB block erase ~200 ms), preserving real-time responsiveness |
| Volatile & Non-Volatile Status Control | BP0–BP2, TB, SEC, QE, and DRV0/DRV1 bits can be set either temporarily (volatile) or permanently (non-volatile) for field-flexible configuration |
| Individual Sector Lock | Per-sector (4KB) lock/unlock via 36h/39h instructions, enabling secure firmware update partitions without full-array protection |
| JEDEC SFDP Register | Standardized, read-only parameter table enabling automatic host controller configuration of timing, voltage, and feature sets |
Applications
| Firmware Storage in MCU Bootloader | Secure Parameter Storage in Industrial PLCs |
|---|---|
|
Use Scenario: Storing boot code and firmware images for ARM Cortex-M microcontrollers requiring fast, reliable non-volatile storage with XIP capability. IC Role / Device Role / Timing Role: Primary code storage device interfaced via Quad SPI; provides deterministic 416 MB/s read bandwidth for zero-wait-state execution. Use Value: Eliminates need for external RAM loading; reduces BOM count and boot latency by enabling direct execution from flash memory. |
Use Scenario: Retaining calibrated sensor offsets, machine-specific configuration, and runtime logs in programmable logic controllers operating in harsh environments. IC Role / Device Role / Timing Role: Non-volatile parameter bank with hardware write protection (/WP pin) and individual sector locking to prevent accidental overwrites. Use Value: Ensures data integrity across power cycles and firmware updates; supports field calibration without risking system-critical settings. |
| OTA Update Partition in Wireless Modules | Boot Image Redundancy in Automotive ECUs |
|
Use Scenario: Hosting dual firmware images (active + candidate) in Wi-Fi/BLE modules to support atomic over-the-air updates with rollback capability. IC Role / Device Role / Timing Role: Dual-partition flash memory using 4KB sector erase to isolate update payloads; leverages suspend/resume for safe interruption during erase. Use Value: Guarantees update atomicity and recovery; avoids bricking devices during power loss mid-update. |
Use Scenario: Storing primary and backup boot images in automotive engine control units where ASIL-B functional safety compliance requires redundancy. IC Role / Device Role / Timing Role: Safety-critical boot memory with OTP-locked security registers storing cryptographic keys and image hashes. Use Value: Enables secure boot verification and fail-safe fallback to known-good firmware after corruption detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L3233FZNI-10G | 32 M-bit, 104 MHz max clock, but lacks QPI mode and SFDP register; uses different status register layout | No QPI acceleration or auto-configuration support; requires manual timing setup and register mapping | Choose when QPI and SFDP are unnecessary and legacy software compatibility with Macronix register model is required |
| S25FL132K0XMFI010 | 32 M-bit, 85 MHz max clock, supports Octal DTR mode (not in W25Q32FVDAIQ); includes hardware reset pin on all packages | Lower bandwidth than W25Q32FVDAIQ in Quad mode; adds /RESET pin even on 8-pin variants, simplifying reset management | Prefer when deterministic hardware reset signaling is mandatory and Octal DTR future-proofing is valued over peak Quad SPI speed |
Compared with MX25L3233FZNI-10G and S25FL132K0XMFI010, W25Q32FVDAIQ delivers higher effective bandwidth via QPI and standardized configuration via SFDP, but requires explicit QE bit management and lacks a dedicated /RESET pin in its SOIC-DA package-making it optimal for cost-sensitive, high-throughput XIP designs where those features are leveraged.
Availability
W25Q32FVDAIQ is available at Aetrix Electronics and suitable for firmware storage in MCU bootloaders, secure parameter retention in industrial PLCs, OTA update partitioning in wireless modules, and boot image redundancy in automotive ECUs requiring stable component supply and long-term lifecycle assurance.
Supply support for W25Q32FVDAIQ 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 DRAM, mobile DRAM, and serial flash memory solutions for embedded, communications, and consumer markets.
The W25Q32FV series belongs to Winbond's SpiFlash family, designed specifically for high-performance, low-power code storage and execution in resource-constrained embedded systems requiring robust security and flexible interface options.
FAQ
What interface modes does the W25Q32FVDAIQ support?
The W25Q32FVDAIQ supports Standard SPI (4-wire), Dual SPI (2 I/O), Quad SPI (4 I/O), and Quad Peripheral Interface (QPI). QPI mode requires issuing the 38h command and setting the QE bit in Status Register-2. In QPI mode, all four I/O lines carry both instructions and data, reducing protocol overhead versus standard SPI.
Does W25Q32FVDAIQ have a dedicated /RESET pin?
No, W25Q32FVDAIQ (SOIC 300-mil, Package Code DA) does not include a dedicated /RESET pin. The /HOLD pin (Pin 7) serves as /HOLD only; it cannot be reconfigured as /RESET because the DA package lacks the separate /RESET signal present in the 16-pin SOIC SF variant. Hardware reset must be implemented externally or via software commands (66h + 99h).
How is write protection implemented on W25Q32FVDAIQ?
W25Q32FVDAIQ implements dual-layer write protection: hardware-level via the /WP pin (active-low, protects status register writes), and software-level via status register bits (BP0–BP2, TB, SEC, CMP). When /WP is asserted, status register writes are blocked regardless of BP bit settings. The /WP pin is unavailable in Quad SPI mode (QE=1), as it becomes IO2.
What is the purpose of the SFDP register in W25Q32FVDAIQ?
The SFDP (Serial Flash Discoverable Parameters) register in W25Q32FVDAIQ is a JEDEC-standardized, read-only memory map (accessed via 5Ah instruction) that contains vendor-agnostic timing, voltage, and feature descriptors. It allows host controllers to auto-configure read/write timings, voltage thresholds, and supported instruction sets without hardcoding device-specific parameters.
Can W25Q32FVDAIQ be used for execute-in-place (XIP) operation?
Yes, W25Q32FVDAIQ supports true XIP via Continuous Read Mode and Fast Read Quad I/O (6Bh) or QPI instructions. With as few as 8 clocks to initiate address fetch and 416 MB/s effective throughput in Quad mode, it enables zero-wait-state execution directly from flash-ideal for Cortex-M microcontrollers with SPI memory-mapped peripherals.
W25Q32FVDAIQ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
W25Q32FVDAIQ FAQ
1.How can I place an order for W25Q32FVDAIQ through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q32FVDAIQ 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 W25Q32FVDAIQ reliable?
The price and inventory of W25Q32FVDAIQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q32FVDAIQ is usually 5 days.
3.What payment methods are accepted for W25Q32FVDAIQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q32FVDAIQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q32FVDAIQ?
W25Q32FVDAIQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q32FVDAIQ 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 W25Q32FVDAIQ?
For technical support, including W25Q32FVDAIQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q32FVDAIQ requirements.
6.How does Aetrix verify that W25Q32FVDAIQ is sourced from the original manufacturer or authorized distributors?
All W25Q32FVDAIQ 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 W25Q32FVDAIQ meets industry standards.
7.What is the process for return or replacement of W25Q32FVDAIQ?
All W25Q32FVDAIQ units undergo pre-shipment inspection (PSI). If there is an issue with W25Q32FVDAIQ, 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 W25Q32FVDAIQ part is unused and in its original packaging.
Return procedure for W25Q32FVDAIQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q32FVDAIQ Tags
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