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Winbond Electronics Corporation W25Q32FVSSIQ
- Part No.:
- W25Q32FVSSIQ
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
W25Q32FVSSIQ.pdf
- Description:
- IC FLASH 32MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,797
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Product details
Overview
W25Q32FVSSIQ 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, 4KB uniform sector erase, and 1µA typical power-down current. It enables XIP (execute-in-place) in embedded boot code storage, firmware update storage, and parameter retention in space-constrained industrial controllers.
For engineers reviewing the W25Q32FVSSIQ datasheet, W25Q32FVSSIQ pinout, W25Q32FVSSIQ application, or W25Q32FVSSIQ equivalent, key selection criteria include Quad SPI timing compliance, 4KB sector granularity for OTA updates, /HOLD and /WP hardware protection, JEDEC ID/SFDP register support, and SOIC-8 (208-mil) package compatibility with legacy PCB footprints.
Technical Context
The W25Q32FVSSIQ implements a unified SPI/QPI command set with configurable I/O modes: Standard SPI uses DI/DO unidirectionally; Dual/Quad SPI repurposes /WP and /HOLD as IO2/IO3 when the non-volatile Quad Enable (QE) bit in Status Register-2 is set. Its block diagram integrates a 256-byte page buffer, column/row decode logic, high-voltage generators for erase/program, and three 256-byte security registers with OTP locks.
Functional operation includes hardware reset via dedicated /RESET (in 16-pin SOIC) or shared /HOLD pin (in 8-pin packages, configurable via HOLD/RST bit), plus software reset (66h+99h). Erase/program suspend/resume allows background operations, while continuous read mode achieves true XIP with ≤8-clock instruction overhead for 24-bit address access.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 M-bit (4 MB), organized as 16,384 × 256-byte pages |
| Interface Support | Standard/Dual/Quad SPI + QPI; QE bit required to enable Quad I/O mode |
| Max Clock Frequency | 104 MHz (SPI), enabling 208 MHz dual-I/O and 416 MHz 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, ensuring long-term field reliability |
| Data Retention | 20 years at +25°C, validated for industrial temperature range (-40°C to +85°C) |
| Power Supply | Single 2.7–3.6 V supply; 4 mA active current, 1 µA typical power-down current |
| Security Features | 64-bit unique ID, SFDP register, three 256-byte security registers with OTP locks |
Pinout & Package
W25Q32FVSSIQ is packaged in an 8-pin SOIC 208-mil (Package Code SS), with pins arranged in standard dual-inline configuration and compatible with automated assembly processes.
| 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 / I/O1 | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad SPI |
| 3 /WP (IO2) | Write Protect Input / I/O2 | Hardware lock for status register; repurposed as IO2 when QE=1 |
| 4 GND | Ground Reference | Signal and power return path; must be low-impedance for timing stability |
| 5 DI (IO0) | Data Input / I/O0 | Unidirectional input in Standard SPI; bidirectional I/O in Dual/Quad SPI |
| 6 CLK | Serial Clock Input | Edge-triggered timing source; rising edge for input, falling edge for output |
| 7 /HOLD (IO3) | Hold Input / I/O3 | Pauses ongoing SPI transaction; repurposed as IO3 when QE=1 |
| 8 VCC | Power Supply | 2.7–3.6 V single supply; decoupling capacitor required per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Continuous Read Mode | Enables true XIP with ≤8-clock instruction overhead for 24-bit addressing, reducing CPU wait states |
| Quad Peripheral Interface (QPI) | Reduces instruction overhead vs. standard SPI by consolidating commands into 2-clock cycles |
| Erase/Program Suspend & Resume | Allows foreground read access during background erase/program, critical for real-time systems |
| Flexible Hardware Write Protection | /WP and /HOLD pins provide physical layer control; complements volatile/non-volatile BP bits |
| JEDEC Compliance | Supports standard Manufacturer/Device ID (90h), JEDEC ID (9Fh), and SFDP register (5Ah) |
| Security Register Locking | Three 256-byte security registers with OTP locks prevent unauthorized firmware or key overwrite |
Applications
| Boot Code Storage | Firmware Update Storage |
|---|---|
|
Use Scenario: Storing primary bootloader and application firmware in microcontroller-based edge gateways. IC Role / Device Role / Timing Role: Non-volatile code storage with XIP capability, directly executed by ARM Cortex-M7 core via Quad SPI bus. Use Value: Eliminates external RAM copy step; reduces boot time by 35% vs. parallel flash due to 416 MHz effective bandwidth. |
Use Scenario: Holding signed firmware images for secure over-the-air (OTA) updates in smart metering systems. IC Role / Device Role / Timing Role: Secure, sector-protected storage for delta patches and full binaries, accessed via DMA-controlled QPI interface. Use Value: 4KB sector granularity enables atomic update of individual functional modules without erasing entire image. |
| Parameter & Configuration Storage | Industrial HMI Display Memory |
|
Use Scenario: Retaining calibration data, user preferences, and device-specific settings across power cycles in PLC I/O modules. IC Role / Device Role / Timing Role: Low-power, byte-addressable non-volatile storage interfaced via SPI from Cortex-M4 host MCU. Use Value: 1 µA power-down current extends battery life in maintenance-free deployments; BP bits prevent accidental overwrite. |
Use Scenario: Caching GUI assets (fonts, icons, screen layouts) for 7-inch TFT displays in factory HMIs. IC Role / Device Role / Timing Role: High-throughput asset repository accessed via continuous read mode with wrap addressing. Use Value: 50 MB/s sustained transfer rate ensures <10 ms load time for 512 KB UI resource bundles. |
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; only supports Standard/Dual/Quad SPI | No QPI instruction set or continuous read mode; lower effective bandwidth in XIP use cases | Choose for cost-sensitive designs where QPI and SFDP are not required and existing MXIC ecosystem is preferred |
| S25FL132K0XMFI010 | 32 M-bit, 80 MHz max clock, supports HyperBus interface (not SPI/QPI); different pinout and command set | Requires HyperFlash controller; incompatible with standard SPI host peripherals | Choose only if migrating to Cypress/Infineon HyperBus platform with matching memory controller support |
Compared with MX25L3233FZNI-10G and S25FL132K0XMFI010, the W25Q32FVSSIQ delivers higher effective bandwidth via QPI and continuous read, broader JEDEC compliance (SFDP, Unique ID), and finer 4KB sector control-making it optimal for XIP-critical, secure, and field-upgradable embedded systems.
Availability
W25Q32FVSSIQ is available at Aetrix Electronics and suitable for industrial control systems, IoT edge gateways, and automotive infotainment head units requiring stable component supply, long-lifecycle support, and verified SOIC-8 footprint compatibility.
Supply support for W25Q32FVSSIQ 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, mobile DRAM, and code storage devices for embedded and consumer markets.
The W25Q32FV series belongs to Winbond's SpiFlash family, designed specifically for high-reliability, low-power, and space-constrained applications demanding fast boot, secure firmware storage, and seamless OTA updates.
FAQ
What is the package type and lead count of the W25Q32FVSSIQ?
The W25Q32FVSSIQ uses an 8-pin SOIC package with 208-mil body width (Package Code SS). It features gull-wing leads compatible with standard reflow soldering profiles and IPC Class 2 assembly requirements. This package matches legacy footprints used for earlier Winbond W25Qxx series devices, enabling drop-in replacement in existing designs without PCB revision.
Does the W25Q32FVSSIQ support execute-in-place (XIP) operation?
Yes, the W25Q32FVSSIQ supports true XIP via its Continuous Read Mode and Quad SPI/QPI interfaces. With ≤8-clock instruction overhead for 24-bit addressing and up to 416 MHz effective data rate in Quad I/O mode, the W25Q32FVSSIQ enables direct code execution from flash on compatible MCUs such as NXP i.MX RT or STMicroelectronics STM32H7, eliminating need for RAM loading.
How is hardware write protection implemented on the W25Q32FVSSIQ?
The W25Q32FVSSIQ implements hardware write protection using the /WP pin (Pin 3), which-when held low-prevents writes to the status register. This works in conjunction with volatile/non-volatile block protect bits (BP2–BP0, TB, SEC) and status register protect bits (SRP1/SRP0). The /WP pin is disabled in Quad SPI mode (when QE=1), as it becomes IO2; protection then relies solely on register-based settings.
What is the function of the /HOLD pin on the W25Q32FVSSIQ?
The /HOLD pin (Pin 7) on the W25Q32FVSSIQ pauses ongoing SPI transactions when pulled low while /CS is active. During hold, DO goes high-impedance and DI/CLK signals are ignored, allowing other devices to share the same bus. In Quad SPI mode (QE=1), /HOLD becomes IO3; its hold function is unavailable, and the pin serves only as bidirectional data I/O.
Can the W25Q32FVSSIQ be used in automotive applications?
The W25Q32FVSSIQ is rated for industrial temperature range (–40°C to +85°C) and meets AEC-Q100 stress test requirements for Grade 3. While not officially qualified as automotive-grade, it is widely deployed in automotive infotainment, telematics, and ADAS subsystems where extended temperature operation and 20-year data retention are critical. For ASIL-B/C systems, additional system-level validation is required.
W25Q32FVSSIQ 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
W25Q32FVSSIQ FAQ
1.How can I place an order for W25Q32FVSSIQ through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q32FVSSIQ 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 W25Q32FVSSIQ reliable?
The price and inventory of W25Q32FVSSIQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q32FVSSIQ is usually 5 days.
3.What payment methods are accepted for W25Q32FVSSIQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q32FVSSIQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q32FVSSIQ?
W25Q32FVSSIQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q32FVSSIQ 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 W25Q32FVSSIQ?
For technical support, including W25Q32FVSSIQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q32FVSSIQ requirements.
6.How does Aetrix verify that W25Q32FVSSIQ is sourced from the original manufacturer or authorized distributors?
All W25Q32FVSSIQ 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 W25Q32FVSSIQ meets industry standards.
7.What is the process for return or replacement of W25Q32FVSSIQ?
All W25Q32FVSSIQ units undergo pre-shipment inspection (PSI). If there is an issue with W25Q32FVSSIQ, 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 W25Q32FVSSIQ part is unused and in its original packaging.
Return procedure for W25Q32FVSSIQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q32FVSSIQ 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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24LC01BT-I/OT
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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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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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