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Winbond Electronics Corporation W25Q32BVSSIG
- Part No.:
- W25Q32BVSSIG
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
W25Q32BVSSIG.pdf
- Description:
- IC FLASH 32MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,738
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Product details
Overview
W25Q32BVSSIG from Winbond is a 32M-bit (4MB) serial NOR flash memory IC supporting Standard, Dual, and Quad SPI interfaces with 104 MHz dual I/O and 80 MHz quad I/O clock rates. It features uniform 4KB sector erase, 64KB block erase, and chip erase capabilities, operates from 2.7V to 3.6V, and delivers 40 MB/s continuous read throughput - enabling execute-in-place (XIP) in embedded microcontroller boot applications.
For engineers reviewing the W25Q32BVSSIG datasheet, W25Q32BVSSIG pinout, W25Q32BVSSIG application, or W25Q32BVSSIG equivalent, key selection considerations include its SOIC-8 (208-mil) package compatibility, Quad Enable (QE) bit dependency for quad mode, hardware write protection via /WP and /HOLD pins, and JEDEC-compliant 64-bit unique ID for secure firmware binding.
Technical Context
The W25Q32BVSSIG implements a SPI command-and-control logic architecture with dedicated page buffer (256 bytes), status register control (SR1/SR2), and SFDP register support. Its dual/quad I/O operation relies on bidirectional IO0–IO3 pins enabled by setting the non-volatile Quad Enable (QE) bit in Status Register-2.
It supports SPI modes 0 and 3, includes erase/program suspend/resume functionality, and integrates three 256-byte security registers with OTP locks. Hardware write protection combines /WP pin assertion with SR-level BP2–BP0, TB, SEC, and CMP bits for granular 4KB sector or full-array locking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 M-bit (4,194,304 bytes), organized as 16,384 × 256-byte pages |
| Operating Voltage | 2.7 V to 3.6 V - compatible with standard 3.3 V logic systems without level shifting |
| Max Clock Frequency | 104 MHz (Dual SPI), 80 MHz (Quad SPI) - enables 208 MHz / 320 MHz effective data rates |
| Erase Granularity | 4 KB sectors (1,024 total), 32 KB blocks (512), 64 KB blocks (64), and full-chip erase |
| Endurance & Retention | 100,000 program/erase cycles; 20-year data retention at +85°C |
| Interface Modes | Standard SPI (DI/DO), Dual SPI (IO0/IO1), Quad SPI (IO0–IO3) - all share same CLK and /CS |
| Unique ID | 64-bit factory-programmed serial number - enables device authentication and firmware binding |
Pinout & Package
W25Q32BVSSIG is supplied in an 8-pin SOIC-208-mil package (package code SS), with lead-free, RoHS-compliant construction and surface-mount footprint.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable: high = high-impedance DO, low = active SPI communication |
| 2 DO (IO1) | Data Output / Bidirectional I/O1 | Unidirectional output in Standard SPI; bidirectional in Dual/Quad SPI for data transfer |
| 3 /WP (IO2) | Write Protect Input / Bidirectional I/O2 | Hardware lock for status register when QE=0; becomes IO2 in Quad SPI (QE=1) |
| 4 GND | Ground Reference | Primary return path for VCC and signal currents; requires low-impedance PCB connection |
| 5 DI (IO0) | Data Input / Bidirectional I/O0 | Unidirectional input in Standard SPI; bidirectional in Dual/Quad SPI for address/data |
| 6 CLK | Serial Clock Input | Synchronous timing reference for all SPI operations; supports Mode 0 and Mode 3 |
| 7 /HOLD (IO3) | Hold Input / Bidirectional I/O3 | Pauses ongoing SPI transaction when asserted low (QE=0); becomes IO3 in Quad SPI (QE=1) |
| 8 VCC | Power Supply | Single 2.7–3.6 V supply; decoupling capacitor required near pin for noise suppression |
Key Features
| Feature | Design Value |
|---|---|
| Continuous Read Mode | As few as 8 clocks overhead per 24-bit address - enables true XIP with minimal instruction latency |
| Dual/Quad SPI Compatibility | Backward-compatible with legacy SPI controllers; quad mode requires QE bit set in SR2 |
| Flexible Write Protection | Combines hardware (/WP, /HOLD) and software (BP2–BP0, TB, SEC, CMP) controls for 4KB–full-array locking |
| Security Registers | Three 256-byte OTP-lockable registers - suitable for storing cryptographic keys or calibration data |
| SFDP Support | JEDEC JESD216-compliant Serial Flash Discoverable Parameters - enables automatic driver configuration |
Applications
| IoT Edge Node Firmware Storage | Industrial PLC Boot Memory |
|---|---|
|
Use Scenario: Storing bootloader, RTOS image, and field-upgradable application firmware in battery-powered sensor nodes. IC Role / Device Role / Timing Role: Primary non-volatile code storage with XIP-capable Quad SPI interface for deterministic boot timing. Use Value: 40 MB/s read throughput reduces boot time by >5× vs. standard SPI flash; 1µA power-down current extends battery life. |
Use Scenario: Holding firmware and configuration data in programmable logic controllers operating in harsh industrial environments. IC Role / Device Role / Timing Role: Reliable, long-life code and parameter storage with hardware write protection against EMI-induced corruption. Use Value: 100,000 erase cycles and -40°C to +85°C rating ensure 10+ years of unattended operation in factory automation systems. |
| Automotive Infotainment HMI | Medical Diagnostic Device UI |
|
Use Scenario: Hosting graphical assets, voice prompts, and firmware updates in automotive head units with AEC-Q100 alignment. IC Role / Device Role / Timing Role: High-speed Quad SPI memory supporting real-time UI rendering and secure OTA update staging. Use Value: 64-bit unique ID enables cryptographic signing of firmware images; SFDP simplifies driver porting across vehicle platforms. |
Use Scenario: Storing FDA-compliant UI firmware, calibration tables, and audit logs in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, traceable firmware storage with OTP-locked security registers for regulatory compliance evidence. Use Value: Three 256-byte OTP registers retain immutable calibration signatures; JEDEC ID ensures supply chain authenticity verification. |
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 |
|---|---|---|---|
| MX25L3233FZUI-12G | 32 M-bit, 133 MHz max clock, supports DTR mode; no built-in SFDP register | Lacks SFDP auto-configuration; requires manual driver tuning for timing parameters | Preferred where maximum clock speed is critical and driver flexibility exists |
| S25FL132K0XMFI010 | 32 M-bit, 80 MHz max clock, HyperBus interface option; supports 1.8 V/3.0 V dual supply | HyperBus variant offers higher bandwidth but requires different controller IP and PCB layout | Choose only if migrating to Cypress/Infineon ecosystem with HyperFlash support |
Compared with MX25L3233FZUI-12G and S25FL132K0XMFI010, W25Q32BVSSIG provides broader SPI mode compatibility (Mode 0/3), integrated SFDP for plug-and-play driver initialization, and lower power-down current (1 µA vs. 5–10 µA), making it optimal for cost-sensitive, power-constrained embedded designs requiring rapid firmware deployment.
Availability
W25Q32BVSSIG is available at Aetrix Electronics and suitable for IoT edge node firmware storage, industrial PLC boot memory, and automotive infotainment HMI applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for W25Q32BVSSIG 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 SPI NOR flash, PSRAM, and mobile DRAM for embedded and industrial markets.
The W25Q series was designed specifically for high-reliability, high-speed code storage in resource-constrained microcontroller systems - emphasizing XIP performance, flexible protection, and seamless integration into ARM Cortex-M and RISC-V boot workflows.
FAQ
What is the package type and pin count of W25Q32BVSSIG?
W25Q32BVSSIG uses an 8-pin SOIC-208-mil package (package code SS), with standard 1.27 mm pitch and surface-mount footprint. Pinout matches industry-standard SPI flash pin assignments: /CS, DO, /WP, GND, DI, CLK, /HOLD, and VCC - ensuring drop-in compatibility with existing board layouts designed for similar 8-pin SPI flash devices.
Does W25Q32BVSSIG support Quad SPI mode out of the box?
No - W25Q32BVSSIG requires the Quad Enable (QE) bit in Status Register-2 to be set before Quad SPI operation is active. Until QE=1, pins /WP and /HOLD function as hardware write protect inputs; after QE=1, they become IO2 and IO3. This configuration is non-volatile and persists across power cycles once written.
What is the minimum and maximum supply voltage for W25Q32BVSSIG?
W25Q32BVSSIG operates over a guaranteed range of 2.7 V to 3.6 V. Operation below 2.7 V may cause unreliable read/write behavior or status register corruption; operation above 3.6 V risks permanent damage. The device draws only 4 mA typical during active reads and less than 1 µA in power-down mode within this voltage window.
How many program/erase cycles does W25Q32BVSSIG guarantee?
W25Q32BVSSIG guarantees 100,000 program/erase cycles per sector under industrial temperature conditions (-40°C to +85°C). This endurance rating applies to all 4 KB sectors and is validated per JEDEC JESD22-A117. Data retention remains ≥20 years at +85°C, making it suitable for long-lifecycle embedded deployments.
Is there a unique identifier available on W25Q32BVSSIG for firmware binding?
Yes - W25Q32BVSSIG includes a factory-programmed, read-only 64-bit Unique ID accessible via instruction 4Bh. This value is laser-trimmed during wafer test and cannot be altered, providing a cryptographically strong root-of-trust anchor for secure boot, license enforcement, or device-specific calibration storage in the W25Q32BVSSIG.
W25Q32BVSSIG 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:
- 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:
- 8-SOIC
W25Q32BVSSIG FAQ
1.How can I place an order for W25Q32BVSSIG through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q32BVSSIG 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 W25Q32BVSSIG reliable?
The price and inventory of W25Q32BVSSIG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q32BVSSIG is usually 5 days.
3.What payment methods are accepted for W25Q32BVSSIG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q32BVSSIG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q32BVSSIG?
W25Q32BVSSIG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q32BVSSIG 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 W25Q32BVSSIG?
For technical support, including W25Q32BVSSIG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q32BVSSIG requirements.
6.How does Aetrix verify that W25Q32BVSSIG is sourced from the original manufacturer or authorized distributors?
All W25Q32BVSSIG 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 W25Q32BVSSIG meets industry standards.
7.What is the process for return or replacement of W25Q32BVSSIG?
All W25Q32BVSSIG units undergo pre-shipment inspection (PSI). If there is an issue with W25Q32BVSSIG, 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 W25Q32BVSSIG part is unused and in its original packaging.
Return procedure for W25Q32BVSSIG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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