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Winbond Electronics Corporation W25Q32FVSSJQ
- Part No.:
- W25Q32FVSSJQ
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
W25Q32FVSSJQ.pdf
- Description:
- IC FLASH 32MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,063
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Product details
Overview
W25Q32FVSSJQ from Winbond is a 32M-bit (4MB) serial NOR flash memory IC supporting Standard/Dual/Quad SPI and QPI interfaces, operating at up to 104MHz clock frequency with 50MB/s continuous read throughput. It features uniform 4KB sector erase, 32KB/64KB block erase, and chip erase capabilities, with 1,024 erasable sectors and 64 erasable blocks. The device supports true execute-in-place (XIP) operation and is used for code storage, firmware boot, and parameter retention in microcontroller-based embedded systems.
For engineers reviewing the W25Q32FVSSJQ datasheet, W25Q32FVSSJQ pinout, W25Q32FVSSJQ application, or W25Q32FVSSJQ equivalent, key selection considerations include Quad SPI enable (QE bit), /HOLD vs /RESET pin configuration in 8-pin packages, 4KB sector granularity for data logging, and JEDEC SFDP register support for automatic configuration discovery.
Technical Context
The W25Q32FVSSJQ implements a flexible SPI-compatible command set with hardware- and software-controlled write protection, including volatile/non-volatile status register bits (BP2–BP0, TB, SEC, CMP, SRP0/SRP1), individual sector lock/unlock, and global lock functions. Its architecture supports erase/program suspend/resume for concurrent background operations.
It integrates three 256-byte one-time-programmable (OTP) security registers, a 64-bit unique ID, and JEDEC-standard SFDP register for vendor-agnostic parameter discovery. The Quad Enable (QE) bit in Status Register-2 reconfigures /WP and /HOLD pins as IO2 and IO3, enabling full Quad I/O mode - a critical functional dependency not active by default.
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), and QPI (4 I/O with 2-cycle instruction) |
| Max Clock Frequency | 104 MHz (SPI); enables 208 MHz dual-I/O and 416 MHz quad-I/O effective throughput |
| Erase Granularity | 4 KB sector, 32 KB block, 64 KB block, and full-chip erase - supports fine-grained firmware partitioning |
| Write Endurance | 100,000 program/erase cycles per sector - validated for long-life data logging applications |
| Data Retention | 20 years at +25°C - ensures reliable firmware storage over product lifecycle |
| Supply Voltage | 2.7 V to 3.6 V single supply - compatible with 3.3 V logic domains without level shifting |
| Power Consumption | 4 mA active current; <1 µA power-down (typ.) - suitable for battery-backed and low-power IoT nodes |
Pinout & Package
W25Q32FVSSJQ uses an 8-pin SOIC 208-mil package (package code SS), with pin 1 = /CS, pin 2 = DO (IO1), pin 3 = /WP (IO2), pin 4 = GND, pin 5 = DI (IO0), pin 6 = CLK, pin 7 = /HOLD or /RESET (IO3), pin 8 = VCC. Pin 7's function depends on QE bit setting: when QE=0, it operates as /HOLD; when QE=1, it becomes IO3 for Quad SPI.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS (Pin 1) | Chip Select Input | Active-low enable: high = high-impedance output, low = active communication; must toggle high→low after power-up to accept new instructions |
| DO / IO1 (Pin 2) | Data Output / Quad I/O Line 1 | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad modes - carries read data or address bytes |
| /WP / IO2 (Pin 3) | Write Protect Input / Quad I/O Line 2 | Hardware write lock for status register when QE=0; becomes IO2 in Quad mode (QE=1) - requires external pull-up if unused |
| GND (Pin 4) | Ground Reference | Primary return path for VCC and all I/O signals - must be low-impedance and decoupled near device |
| DI / IO0 (Pin 5) | Data Input / Quad I/O Line 0 | Unidirectional input in Standard SPI; bidirectional I/O in Dual/Quad modes - carries commands, addresses, and write data |
| CLK (Pin 6) | Serial Clock Input | Synchronizes all SPI/QPI transfers; rising edge latches input, falling edge samples output - timing-critical for >80 MHz operation |
| /HOLD or /RESET (Pin 7) | Hold Input or Reset Input / Quad I/O Line 3 | Pauses ongoing SPI transaction when low (QE=0); becomes IO3 in Quad mode (QE=1); dedicated /RESET only in 16-pin SOIC |
| VCC (Pin 8) | Power Supply | 2.7–3.6 V supply - requires local 100 nF ceramic decoupling capacitor between VCC and GND |
Key Features
| Feature | Design Value |
|---|---|
| Quad Peripheral Interface (QPI) | Reduces instruction overhead to two clocks per command, enabling deterministic XIP execution without software polling |
| Continuous Read Mode with Wrap | Supports 8/16/32/64-byte wrap bursts with only 8-clock instruction overhead - eliminates address retransmission for sequential access |
| Erase/Program Suspend & Resume | Allows interruption of long erase/program cycles to service urgent reads or writes - essential for real-time firmware updates |
| JEDEC SFDP Register | Enables automatic detection of memory geometry, timing parameters, and feature set by host controller - no hardcoded driver assumptions needed |
| Three 256-byte Security Registers | Provide OTP-locked storage for cryptographic keys, calibration data, or device-specific credentials - protected against accidental overwrite |
| 64-bit Unique Serial Number | Factory-programmed per unit - enables secure device identity, anti-cloning, and traceability in production and field deployment |
Applications
| Industrial PLC Firmware Storage | IoT Edge Device Boot Code |
|---|---|
|
Use Scenario: Storing bootloader and application firmware in programmable logic controllers where field updates require verified integrity and sector-level rollback capability. IC Role / Device Role / Timing Role: Primary non-volatile code storage with XIP support and hardware write protection to prevent corruption during brown-out events. Use Value: 4KB sector erase enables atomic firmware patching; 100K cycle endurance supports frequent OTA updates over 10+ years of operation. |
Use Scenario: Hosting secure boot images and sensor calibration tables in battery-powered wireless sensors deployed in remote locations. IC Role / Device Role / Timing Role: Trusted firmware repository with unique ID and security registers for key binding and device attestation. Use Value: <1 µA power-down current extends battery life; SFDP register allows runtime adaptation to varying clock speeds across MCU generations. |
| Automotive Infotainment UI Assets | Medical Diagnostic Instrument Configuration |
|
Use Scenario: Caching graphical assets (icons, fonts, UI layouts) in automotive head units where fast random access and thermal stability are critical. IC Role / Device Role / Timing Role: High-speed Quad SPI data source feeding GPU or display controller via DMA, operating across -40°C to +85°C. Use Value: 50 MB/s continuous read rate sustains 1080p UI rendering; 20-year data retention guarantees asset persistence over vehicle lifetime. |
Use Scenario: Storing FDA-compliant calibration coefficients, usage logs, and safety-critical configuration profiles in portable diagnostic tools. IC Role / Device Role / Timing Role: Tamper-resistant parameter store with OTP security registers and hardware write protect for audit-trail integrity. Use Value: Three independent 256-byte security registers allow separation of calibration, service history, and regulatory metadata - each individually lockable. |
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 and security model | No QPI or SFDP support limits XIP flexibility and auto-configuration capability in heterogeneous MCU platforms | Prefer W25Q32FVSSJQ when QPI, SFDP, or security registers are required; MX25L3233FZNI-10G suits cost-sensitive designs with fixed SPI drivers |
| S25FL132K0XMFI010 | 32 M-bit, supports Quad SPI and SFDP, but only 85 MHz max clock and no OTP security registers; different sector protection scheme | Lower throughput (34 MB/s) and absence of OTP locks reduce suitability for secure boot or high-bandwidth UI caching | Choose W25Q32FVSSJQ for higher speed, security, and suspend/resume functionality; S25FL132K0XMFI010 fits legacy SPI-only systems with relaxed timing |
Compared with MX25L3233FZNI-10G and S25FL132K0XMFI010, the W25Q32FVSSJQ delivers superior throughput, standardized parameter discovery via SFDP, and hardware-enforced security features - making it optimal for next-generation embedded systems requiring robust, scalable, and secure code storage.
Availability
W25Q32FVSSJQ is available at Aetrix Electronics and suitable for industrial control, IoT edge node, and automotive infotainment applications requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across manufacturing lots.
Supply support for W25Q32FVSSJQ 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 serial flash, RAM, and mobile DRAM, serving industrial, automotive, and consumer markets since 1987.
The W25Q32FV series belongs to Winbond's SpiFlash family, designed specifically for high-reliability embedded code storage with advanced interface flexibility, security, and endurance - targeting applications where firmware integrity and update agility are critical.
FAQ
What is the package type and pin count of the W25Q32FVSSJQ?
The W25Q32FVSSJQ uses an 8-pin SOIC 208-mil package (package code SS). Its pinout includes /CS, DO/IO1, /WP/IO2, GND, DI/IO0, CLK, /HOLD or /RESET/IO3, and VCC. Pin 7 functions as /HOLD when the Quad Enable (QE) bit is clear, and as IO3 when QE=1 - this dual-role behavior is defined in the status register and must be configured before Quad SPI use.
Does the W25Q32FVSSJQ support execute-in-place (XIP) operation?
Yes, the W25Q32FVSSJQ supports true XIP operation via its Continuous Read Mode and Quad Peripheral Interface (QPI). With as few as 8 clocks of instruction overhead and wrap burst support, it enables direct CPU instruction fetch from flash without copying to RAM - validated for use with ARM Cortex-M and RISC-V cores in real-time embedded systems.
How does the /HOLD pin behave in Quad SPI mode on the W25Q32FVSSJQ?
In Quad SPI mode (QE=1), the /HOLD pin (Pin 7) of the W25Q32FVSSJQ is reassigned as IO3 and no longer functions as a hold input. This reconfiguration is mandatory for Quad I/O operation and is controlled solely by the non-volatile Quad Enable bit in Status Register-2. Hardware hold functionality is unavailable in Quad mode on 8-pin packages like W25Q32FVSSJQ.
What security features does the W25Q32FVSSJQ provide beyond basic write protection?
The W25Q32FVSSJQ provides three 256-byte one-time-programmable (OTP) security registers, a factory-programmed 64-bit unique ID, and configurable sector/block locking via status register bits (LB1–LB3). These features enable cryptographic key storage, device identity binding, and tamper-resistant calibration data retention - extending protection far beyond simple /WP pin or BP-bit software locks.
Can the W25Q32FVSSJQ be used in automotive applications requiring AEC-Q100 qualification?
The W25Q32FVSSJQ itself is not AEC-Q100 qualified; however, Winbond offers automotive-grade variants such as the W25Q32JWxxIQ (AEC-Q100 Grade 3) with identical pinout and command set. For automotive designs requiring qualification, the W25Q32JWxxIQ is the compliant alternative - the W25Q32FVSSJQ is intended for industrial and commercial temperature-range applications (-40°C to +85°C).
W25Q32FVSSJQ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-SOIC (0.209", 5.30mm 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
W25Q32FVSSJQ FAQ
1.How can I place an order for W25Q32FVSSJQ through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q32FVSSJQ 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 W25Q32FVSSJQ reliable?
The price and inventory of W25Q32FVSSJQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q32FVSSJQ is usually 5 days.
3.What payment methods are accepted for W25Q32FVSSJQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q32FVSSJQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q32FVSSJQ?
W25Q32FVSSJQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q32FVSSJQ 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 W25Q32FVSSJQ?
For technical support, including W25Q32FVSSJQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q32FVSSJQ requirements.
6.How does Aetrix verify that W25Q32FVSSJQ is sourced from the original manufacturer or authorized distributors?
All W25Q32FVSSJQ 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 W25Q32FVSSJQ meets industry standards.
7.What is the process for return or replacement of W25Q32FVSSJQ?
All W25Q32FVSSJQ units undergo pre-shipment inspection (PSI). If there is an issue with W25Q32FVSSJQ, 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 W25Q32FVSSJQ part is unused and in its original packaging.
Return procedure for W25Q32FVSSJQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q32FVSSJQ Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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