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Winbond Electronics Corporation W25Q32FWSTIG
- Part No.:
- W25Q32FWSTIG
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
W25Q32FWSTIG.pdf
- Description:
- IC FLASH 32MBIT SPI/QUAD 8VSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,583
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Product details
Overview
W25Q32FWSTIG from Winbond is a 1.8V, 32M-bit (4MB) serial NOR flash memory IC supporting Standard/Dual/Quad SPI and QPI interfaces. It features uniform 4KB sectors, 104MHz max clock frequency, 50MB/s continuous read throughput, and 100K program-erase cycles per sector. It is used for code storage, XIP execution, and firmware parameter retention in space-constrained embedded systems.
For engineers reviewing the W25Q32FWSTIG datasheet, W25Q32FWSTIG pinout, W25Q32FWSTIG application, or W25Q32FWSTIG equivalent, key selection considerations include its 1.65–1.95V supply range, quad-enable (QE) bit dependency for IO2/IO3 functionality, /HOLD vs /RESET pin behavior across packages, and JEDEC SFDP register support for auto-configuration.
Technical Context
The W25Q32FWSTIG implements a flexible SPI-compatible command set with hardware-supported sector/block erase (4KB/32KB/64KB), page program (1–256 bytes), and erase/program suspend/resume. Its status registers include volatile/non-volatile BP bits, QE bit (SR2[1]), HOLD/RST configuration (SR2[7]), and DRV0/DRV1 output strength control.
It supports SPI Mode 0 and Mode 3, QPI entry via 0x38 instruction, and dual/quad I/O operation contingent on QE=1. The /WP and /HOLD pins are repurposed as IO2 and IO3 in Quad SPI mode, and dedicated /RESET is available only in 16-pin SOIC (SF) and TFBGA (TB/TC) packages - not in the 8-pin SOIC-208mil (SS) package of W25Q32FWSTIG.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 M-bit (4 MB), organized as 32,768 × 256-byte pages |
| Supply Voltage | 1.65 V to 1.95 V - enables low-power operation in battery-backed or energy-efficient designs |
| Max Clock Frequency | 104 MHz (SPI); 208 MHz equiv. (Dual I/O); 416 MHz equiv. (Quad I/O) - determines maximum sustained read bandwidth |
| Erase Granularity | 4 KB sectors (1,024 total), 32 KB blocks (128), 64 KB blocks (64) - allows fine-grained firmware update partitioning |
| Endurance & Retention | 100,000 program/erase cycles per sector; >20 years data retention at 25°C - suitable for field-upgradable firmware |
| Interface Modes | Standard SPI (DI/DO), Dual SPI (IO0/IO1), Quad SPI (IO0–IO3), QPI (all four I/Os active) - requires QE bit set for Quad/QPI |
| Security Features | 64-bit unique ID, three 256-byte OTP-lockable security registers, SFDP register, and configurable top/bottom array protection |
Pinout & Package
W25Q32FWSTIG uses an 8-pin SOIC-208mil (Package Code SS) with exposed pad option per Winbond documentation. Pin functions are shared across SPI modes, with /WP and /HOLD repurposed as IO2 and IO3 when Quad SPI is enabled (QE=1).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable; high-impedance DO and standby current when deasserted |
| 2 DO (IO1) | Data Output / I/O1 | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad modes |
| 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 | Signal and power return path; decoupling capacitor must be placed near this pin |
| 5 DI (IO0) | Data Input / I/O0 | Unidirectional input in Standard SPI; bidirectional I/O in Dual/Quad modes |
| 6 CLK | Serial Clock Input | Edge-triggered timing source; supports Mode 0 and Mode 3 polarity/phase configurations |
| 7 /HOLD (IO3) | Hold Input / I/O3 | Pauses ongoing SPI transfer when low; becomes IO3 in Quad mode (QE=1) |
| 8 VCC | Power Supply | 1.65–1.95 V supply; requires local 100nF ceramic decoupling capacitor |
Key Features
| Feature | Design Value |
|---|---|
| Continuous Read Mode | As few as 8 clocks overhead to initiate read; enables true XIP (execute-in-place) from flash without copying to RAM |
| Quad Peripheral Interface (QPI) | Reduces instruction overhead by using all four I/O lines simultaneously; eliminates separate instruction/data phases |
| Erase/Program Suspend & Resume | Allows background operations (e.g., logging) to pause flash writes/erases and resume later - critical for real-time systems |
| Volatile & Non-Volatile Status Control | BP, QE, HOLD/RST, and DRV bits can be set either temporarily (volatile) or permanently (non-volatile) - supports dynamic configuration |
| JEDEC SFDP Register | Standardized, read-only register providing device parameters (size, timing, erase types) - enables automatic driver initialization |
Applications
| IoT Edge Node Firmware Storage | Industrial PLC Boot Code |
|---|---|
|
Use Scenario: Storing boot firmware and OTA update images in battery-powered sensor nodes with strict power and PCB area constraints. IC Role / Device Role / Timing Role: Primary non-volatile code storage with XIP-capable Quad SPI interface for fast cold-boot execution. Use Value: 1.8V operation and 1µA power-down current extend battery life; 4KB sector granularity enables atomic firmware patching. |
Use Scenario: Holding bootloader, real-time OS kernel, and configuration tables in programmable logic controllers requiring deterministic startup. IC Role / Device Role / Timing Role: Boot memory mapped via SPI controller with QPI mode enabling sub-100ms firmware load time. Use Value: 100K endurance and 20-year retention ensure reliability over 10+ year product lifecycles; /HOLD pin supports multi-device SPI bus arbitration. |
| Medical Device Parameter Log | Automotive Infotainment UI Assets |
|
Use Scenario: Recording calibration data, usage logs, and fault history in Class II medical instruments with audit-trail requirements. IC Role / Device Role / Timing Role: Secure parameter storage using OTP-locked security registers and individual sector write protection. Use Value: 64-bit unique ID enables device traceability; SRP/CMP bits prevent accidental overwrite of critical calibration sectors. |
Use Scenario: Caching GUI assets (fonts, icons, audio prompts) in automotive head units where display latency must be minimized. IC Role / Device Role / Timing Role: High-bandwidth asset fetch via Fast Read Quad I/O (6Bh) and Continuous Read Wrap mode. Use Value: 50 MB/s effective throughput reduces UI asset load time; QPI mode simplifies host driver complexity versus discrete command/data phases. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L3233FZNI-10G | 32M-bit, 1.65–2.0V, 104MHz, SOIC-8; lacks QPI mode and SFDP register; uses different security register layout | No QPI or SFDP - requires fixed driver configuration; no standardized auto-discovery | Choose if QPI/SFDP are unnecessary and legacy MXIC driver compatibility is prioritized |
| S25FL132K0XMFI010 | 32M-bit, 2.7–3.6V, 80MHz, SOIC-8; supports HyperBus but not QPI; includes on-die ECC and sector lockdown | Higher voltage, lower speed, no QPI - incompatible with 1.8V systems; ECC adds reliability for safety-critical reads | Choose only for 3V systems needing ECC or HyperBus compatibility; not drop-in for W25Q32FWSTIG |
Compared with MX25L3233FZNI-10G and S25FL132K0XMFI010, the W25Q32FWSTIG uniquely delivers QPI + SFDP in a 1.8V 8-pin SOIC package, enabling faster XIP and plug-and-play driver initialization - critical for resource-constrained, rapidly developed embedded platforms.
Availability
W25Q32FWSTIG is available at Aetrix Electronics and suitable for IoT edge node firmware storage, industrial PLC boot code, medical device parameter logging, and automotive infotainment UI assets requiring stable component supply and long-term lifecycle assurance.
Supply support for W25Q32FWSTIG 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 since 1987.
The W25Q series targets cost-sensitive, space-constrained embedded systems requiring high-speed, low-voltage serial flash with robust security and flexible erase architecture - optimized for code storage, XIP, and firmware updates.
FAQ
What is the operating voltage range for W25Q32FWSTIG?
The W25Q32FWSTIG operates from 1.65 V to 1.95 V. This 1.8V nominal range enables compatibility with modern low-power microcontrollers and battery-operated devices. Operation outside this range may cause unreliable read/write behavior or permanent damage. The W25Q32FWSTIG does not support 3.3V operation - using it with higher voltages violates absolute maximum ratings.
Does W25Q32FWSTIG support Quad SPI mode out of the box?
No, W25Q32FWSTIG requires the Quad Enable (QE) bit in Status Register-2 to be set before Quad SPI or QPI modes become active. By default, QE=0, so /WP and /HOLD function as hardware control pins. Setting QE=1 reassigns those pins to IO2 and IO3. This configuration is non-volatile unless cleared, and must be performed via Write Status Register-2 (31h) instruction after Write Enable.
Can W25Q32FWSTIG be used for execute-in-place (XIP) applications?
Yes, W25Q32FWSTIG supports true XIP via Continuous Read Mode and Quad SPI/QPI interfaces. With as few as 8 clocks of instruction overhead and up to 416MHz equivalent bandwidth in Quad I/O mode, it enables direct CPU instruction fetch without RAM buffering - verified in reference designs for ARM Cortex-M and RISC-V MCUs using Fast Read Quad I/O (6Bh) and QPI instructions.
What package type does W25Q32FWSTIG use?
W25Q32FWSTIG uses the 8-pin SOIC-208mil package (Package Code SS), with standard gull-wing leads and no dedicated /RESET pin. This matches the pinout shown in Figure 1a of the Winbond datasheet Revision J. It is distinct from the 16-pin SOIC (SF) or TFBGA (TB/TC) variants that include a separate /RESET signal.
How many program-erase cycles does W25Q32FWSTIG guarantee per sector?
W25Q32FWSTIG guarantees a minimum of 100,000 program-erase cycles per 4KB sector. This endurance rating is specified under typical operating conditions (25°C, VCC = 1.8V ±0.15V) and applies to all sectors across the full memory array. Wear leveling must be implemented in firmware to distribute writes and achieve the full 20-year data retention specification.
W25Q32FWSTIG 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:
- 60µs, 5ms
- Access Time:
- -
- Voltage - Supply:
- 1.65V ~ 1.95V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSOP
W25Q32FWSTIG FAQ
1.How can I place an order for W25Q32FWSTIG through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q32FWSTIG 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 W25Q32FWSTIG reliable?
The price and inventory of W25Q32FWSTIG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q32FWSTIG is usually 5 days.
3.What payment methods are accepted for W25Q32FWSTIG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q32FWSTIG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q32FWSTIG?
W25Q32FWSTIG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q32FWSTIG 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 W25Q32FWSTIG?
For technical support, including W25Q32FWSTIG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q32FWSTIG requirements.
6.How does Aetrix verify that W25Q32FWSTIG is sourced from the original manufacturer or authorized distributors?
All W25Q32FWSTIG 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 W25Q32FWSTIG meets industry standards.
7.What is the process for return or replacement of W25Q32FWSTIG?
All W25Q32FWSTIG units undergo pre-shipment inspection (PSI). If there is an issue with W25Q32FWSTIG, 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 W25Q32FWSTIG part is unused and in its original packaging.
Return procedure for W25Q32FWSTIG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q32FWSTIG Tags
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