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Winbond Electronics Corporation W25Q32BVSFIG
- Part No.:
- W25Q32BVSFIG
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
W25Q32BVSFIG.pdf
- Description:
- IC FLASH 32MBIT SPI/QUAD 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,509
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Product details
Overview
W25Q32BVSFIG from Winbond is a 32M-bit (4MB) serial NOR flash memory IC designed for code storage and execution-in-place (XIP) in space-constrained embedded systems. It supports standard, dual, and quad SPI interfaces with up to 104 MHz clock rate, 4KB uniform sector erase granularity, and operates from a single 2.7–3.6V supply drawing only 4mA active current and <1µA in power-down mode - enabling low-power boot code storage in microcontroller-based IoT edge nodes.
For engineers reviewing the W25Q32BVSFIG datasheet, W25Q32BVSFIG pinout, W25Q32BVSFIG application, or W25Q32BVSFIG equivalent, key selection considerations include Quad SPI XIP capability, hardware write protection via /WP and /HOLD pins, JEDEC ID and SFDP register support, 4KB sector flexibility for firmware parameter storage, and compatibility with industrial temperature range (−40°C to +85°C).
Technical Context
The W25Q32BVSFIG implements a SPI command architecture supporting Mode 0 and Mode 3 operation, with configurable I/O mapping: IO0/IO1 used for standard/dual SPI, and IO0–IO3 enabled for quad SPI only after setting the non-volatile Quad Enable (QE) bit in Status Register-2. Its internal block diagram integrates a 256-byte page buffer, sector/block erase logic, security registers, and SFDP register for discoverable timing and feature parameters.
It features dual-level write protection - hardware-based via active-low /WP and /HOLD pins (disabled in quad mode), and software-based via status register bits (BP2–BP0, TB, SEC, SRP0/SRP1) - allowing selective locking of top/bottom 4KB sectors or full array. Erase/program suspend/resume functionality enables real-time interrupt handling during long-duration flash operations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 M-bit (4,194,304 bytes), organized as 16,384 × 256-byte pages |
| Interface Support | Standard SPI (4-wire), Dual SPI (2 I/O lines), Quad SPI (4 I/O lines) with QE bit enable |
| Max Clock Frequency | 104 MHz for Dual SPI; 80 MHz for Quad SPI - enabling 208 MB/s (Dual) and 320 MB/s (Quad) effective throughput |
| Erase Granularity | Uniform 4KB sectors (1,024 total), 32KB blocks (128), 64KB blocks (64), and full chip erase |
| Write Endurance | 100,000 program/erase cycles per sector (industrial grade) |
| Data Retention | 20 years at +25°C; validated per JEDEC JESD22-A117 |
| Operating Voltage | 2.7 V to 3.6 V - compatible with 3.3V logic families without level shifting |
| Temperature Range | −40°C to +85°C - qualified for industrial applications |
Pinout & Package
W25Q32BVSFIG is packaged in an 8-pin SOIC 208-mil (package code SS), with gull-wing leads, 1.27 mm pitch, and RoHS-compliant matte tin finish. Pin 1 is marked by a beveled corner or dot; device orientation follows JEDEC MS-012 standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable: high = device deselected (high-Z outputs, standby current); low = selected for instruction/data transfer |
| 2 DO (IO1) | Data Output / I/O1 | Unidirectional output in standard SPI; bidirectional I/O in dual/quad modes - carries read data or address LSBs |
| 3 /WP (IO2) | Write Protect Input / I/O2 | Hardware lock for status register when QE=0; becomes IO2 in quad mode (QE=1) |
| 4 GND | Ground Reference | Primary return path for VCC and all I/O signals; must be low-impedance connection to system ground plane |
| 5 DI (IO0) | Data Input / I/O0 | Unidirectional input in standard SPI; bidirectional I/O in dual/quad modes - carries instructions, addresses, or program data |
| 6 CLK | Serial Clock Input | Edge-triggered timing reference: rising edge for input sampling, falling edge for output valid - supports Mode 0/3 |
| 7 /HOLD (IO3) | Hold Input / I/O3 | Pauses ongoing SPI transaction when low (active); becomes IO3 in quad mode (QE=1) |
| 8 VCC | Power Supply | Single 2.7–3.6V supply; requires local 100nF ceramic decoupling capacitor placed within 5 mm of pin |
Key Features
| Feature | Design Value |
|---|---|
| Continuous Read Mode | Enables true XIP with ≤8-clock instruction overhead per 24-bit address - eliminates latency penalties in boot-from-flash MCU designs |
| Quad Enable Bit (QE) | Non-volatile bit in Status Register-2 that reassigns /WP and /HOLD to IO2/IO3 - required before any quad I/O instruction executes |
| Security Registers | Three 256-byte OTP-lockable security registers for keys, calibration data, or firmware signatures - protected by LB1–LB3 bits |
| SFDP Register | JEDEC JESD216-compliant 256-byte Serial Flash Discoverable Parameters table - enables automatic driver configuration in Linux/Baremetal |
| Erase/Program Suspend | Allows pausing long erase/program operations (e.g., 64KB block erase) to service interrupts - resumes from exact byte offset on resume command |
| Unique 64-bit ID | Factory-programmed serial number per die - used for secure device binding, anti-cloning, and field firmware version tracking |
Applications
| Boot Code Storage | Firmware Over-the-Air (OTA) |
|---|---|
Use Scenario: Storing primary bootloader and application firmware for ARM Cortex-M microcontrollers in resource-limited edge sensors. IC Role / Device Role / Timing Role: Non-volatile code storage with XIP-capable Quad SPI interface enabling direct execution without RAM copy. Use Value: Reduces BOM cost and PCB area by eliminating external parallel flash or SRAM; supports deterministic boot timing via Continuous Read Mode. | Use Scenario: Securely storing delta updates and cryptographic signatures during wireless firmware upgrades in smart metering systems. IC Role / Device Role / Timing Role: Dual-bank capable storage (via sector protection) allowing background download while running legacy firmware. Use Value: Enables atomic update rollback using 4KB sector locks and status register protection - prevents bricking during power loss. |
| Industrial HMI Configuration | Automotive Infotainment Cache |
Use Scenario: Holding display assets, language packs, and user preference profiles in programmable logic controllers (PLCs) with limited NVM. IC Role / Device Role / Timing Role: Parameter storage with hardware write protection (/WP pin) preventing accidental corruption during runtime. Use Value: Eliminates need for EEPROM co-location; 100K-cycle endurance ensures >10-year field life under frequent config writes. | Use Scenario: Caching navigation map tiles and voice recognition models in automotive head units where fast random access is critical. IC Role / Device Role / Timing Role: High-bandwidth Quad SPI memory providing 320 MB/s effective throughput for low-latency tile streaming. Use Value: Meets AEC-Q100-relevant endurance (100K cycles) and −40°C to +85°C operation - validated for under-hood adjacent placement. |
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 |
|---|---|---|---|
| MX25L3206EM2I-12G | 32Mb density, same SOIC-8 package, but max Quad SPI clock 80MHz; lacks SFDP register and security registers | No built-in parameter discovery or OTP-locked security storage - requires manual driver tuning and external key management | Choose when cost sensitivity outweighs configurability and security needs; verify timing margins for XIP use. |
| S25FL132K0XMFI011 | 32Mb density, supports 133MHz Quad SPI, includes HyperBus interface option; requires different command set and QE configuration | Higher bandwidth but incompatible instruction set - not drop-in; HyperBus adds pin count and layout complexity | Choose only if migrating to Cypress/Infineon ecosystem or requiring >320 MB/s throughput; redesign required. |
Compared with MX25L3206EM2I-12G, W25Q32BVSFIG provides SFDP-driven auto-configuration and integrated security registers; versus S25FL132K0XMFI011, it offers pin-compatible SOIC-8 footprint and simpler SPI-only integration at lower bandwidth cost.
Availability
W25Q32BVSFIG is available at Aetrix Electronics and suitable for industrial control panels, IoT sensor gateways, and automotive infotainment modules requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for W25Q32BVSFIG 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 NOR/NAND flash, RAM, and mobile DRAM - serving industrial, communications, and consumer markets since 1987.
The W25Q series targets embedded systems requiring high-speed, low-power, and secure code storage - optimized for XIP, OTA updates, and parameter retention in constrained environments.
FAQ
What is the package type and lead finish of W25Q32BVSFIG?
W25Q32BVSFIG uses an 8-pin SOIC 208-mil package (JEDEC MS-012) with matte tin (Sn) lead finish, RoHS-compliant and compatible with standard reflow soldering profiles. The 'SFIG' suffix explicitly denotes this SOIC-208 variant with industrial temperature rating and green halogen-free molding compound.
Does W25Q32BVSFIG support execute-in-place (XIP) operation?
Yes, W25Q32BVSFIG supports true XIP via its Continuous Read Mode and Quad SPI interface. With Fast Read Quad I/O (EBh) and ≤8-clock address overhead, it delivers deterministic low-latency instruction fetches - validated for direct execution on ARM Cortex-M and RISC-V cores without intermediate RAM buffering.
How is Quad SPI mode enabled on W25Q32BVSFIG?
Quad SPI mode on W25Q32BVSFIG is enabled by setting the Quad Enable (QE) bit (bit 1 of Status Register-2) via Write Status Register (01h) instruction. Once set, /WP and /HOLD pins become IO2 and IO3; subsequent Quad I/O commands (e.g., EBh) will function. QE is non-volatile and persists across power cycles.
What write protection mechanisms does W25Q32BVSFIG provide?
W25Q32BVSFIG provides layered write protection: hardware-level via active-low /WP pin (when QE=0), and software-level via status register bits (BP2–BP0, TB, SEC, SRP0/SRP1). These allow granular locking of individual 4KB sectors or entire memory regions - critical for safeguarding bootloader code and calibration data.
Is W25Q32BVSFIG compatible with JEDEC-standard identification and configuration protocols?
Yes, W25Q32BVSFIG fully supports JEDEC JESD216 via its SFDP register, enabling automatic driver initialization with timing parameters and feature flags. It also responds to standard Read JEDEC ID (9Fh), Manufacturer/Device ID (90h), and Unique ID (4Bh) commands - ensuring interoperability with Linux MTD and vendor-agnostic flash tools.
W25Q32BVSFIG 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:
- 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
- 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
W25Q32BVSFIG FAQ
1.How can I place an order for W25Q32BVSFIG through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q32BVSFIG 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 W25Q32BVSFIG reliable?
The price and inventory of W25Q32BVSFIG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q32BVSFIG is usually 5 days.
3.What payment methods are accepted for W25Q32BVSFIG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q32BVSFIG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q32BVSFIG?
W25Q32BVSFIG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q32BVSFIG 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 W25Q32BVSFIG?
For technical support, including W25Q32BVSFIG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q32BVSFIG requirements.
6.How does Aetrix verify that W25Q32BVSFIG is sourced from the original manufacturer or authorized distributors?
All W25Q32BVSFIG 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 W25Q32BVSFIG meets industry standards.
7.What is the process for return or replacement of W25Q32BVSFIG?
All W25Q32BVSFIG units undergo pre-shipment inspection (PSI). If there is an issue with W25Q32BVSFIG, 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 W25Q32BVSFIG part is unused and in its original packaging.
Return procedure for W25Q32BVSFIG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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