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Winbond Electronics Corporation W25Q32FWSTIG TR
- Part No.:
- W25Q32FWSTIG TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
W25Q32FWSTIG TR.pdf
- Description:
- IC FLASH 32MBIT SPI/QUAD 8VSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,411
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Product details
Overview
W25Q32FWSTIG TR from Winbond is a 1.8V, 32M-bit (4MB) serial NOR flash memory with Dual/Quad SPI and QPI interfaces, organized into 32,768 × 256-byte pages and supporting 4KB/32KB/64KB erase granularity. It delivers up to 104MHz SPI clock rate (416MHz equivalent Quad I/O), 50MB/s continuous read throughput, and 100K program-erase cycles per sector. It is used for code XIP, firmware storage, and parameter retention in space-constrained embedded systems.
For engineers reviewing the W25Q32FWSTIG TR datasheet, W25Q32FWSTIG TR pinout, W25Q32FWSTIG TR application, or W25Q32FWSTIG TR equivalent, key selection criteria include its 1.65–1.95V supply range, quad-enable (QE) bit dependency for IO2/IO3 functionality, /HOLD or /RESET dual-role pin behavior in 8-pin packages, and JEDEC-compliant SFDP register support for auto-configuration.
Technical Context
The W25Q32FWSTIG TR implements a unified SPI/QPI command architecture with mode-selectable operation: Standard SPI uses DI/DO unidirectionally; Dual/Quad SPI repurposes pins as bidirectional IO0–IO3 when QE=1. Its status register configuration (SR-1/SR-2/SR-3) controls write protection granularity, burst wrap length, driver strength, and /HOLD vs /RESET function mapping.
It supports true execute-in-place (XIP) via Continuous Read Mode with ≤8-clock instruction overhead and 24-bit address access. Erase suspend/resume, security registers (3×256B OTP-lockable), and 64-bit unique ID are implemented in dedicated on-die logic blocks independent of main array control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 M-bit (4 MB) - sufficient for full MCU boot images and firmware binaries in compact IoT nodes. |
| Supply Voltage | 1.65 V to 1.95 V - enables direct integration with 1.8V I/O domains without level-shifting. |
| SPI Clock Max | 104 MHz - enables 416 MB/s effective bandwidth in Quad I/O mode using Fast Read Quad I/O (EBh). |
| Erase Granularity | 4 KB sectors / 32 KB blocks / 64 KB blocks - allows fine-grained firmware update partitioning without full chip erase. |
| Endurance | 100,000 program-erase cycles per sector - supports frequent OTA firmware patching in industrial gateways. |
| Data Retention | 20 years at +25°C - ensures long-term reliability for sealed medical or automotive modules. |
| Interface Modes | Standard/Dual/Quad SPI + QPI - provides backward compatibility and scalable bandwidth for host controller migration paths. |
Pinout & Package
W25Q32FWSTIG TR is supplied in an 8-pin SOIC 208-mil (Package Code SS) package with gull-wing leads, RoHS-compliant matte tin finish, and moisture sensitivity level (MSL) 3 per J-STD-020.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable: high impedance DO and standby current (~1 µA) when deasserted; required low-to-high transition before new instruction acceptance after power-up. |
| 2 DO (IO1) | Data Output / Quad I/O Line 1 | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad modes; high-Z during /HOLD assertion. |
| 3 /WP (IO2) | Write Protect Input / Quad I/O Line 2 | Hardware lock for status register writes when QE=0; becomes IO2 in Quad mode (QE=1); active-low, requires external pull-up if unused. |
| 4 GND | Ground Reference | Primary return path for VCC and all I/O signals; must be low-inductance connection to minimize noise coupling into CLK and data lines. |
| 5 DI (IO0) | Data Input / Quad I/O Line 0 | Unidirectional input in Standard SPI; bidirectional I/O in Dual/Quad modes; sampled on rising CLK edge. |
| 6 CLK | Serial Clock Input | Master-generated timing signal; supports SPI modes 0 and 3; max 104 MHz frequency defines system throughput ceiling. |
| 7 /HOLD or /RESET (IO3) | Hold Input or Reset Input / Quad I/O Line 3 | Pauses ongoing transfers when low (active-low HOLD); resets internal state when pulsed (active-low RESET); function selected by HOLD/RST bit in SR-3; unavailable in Quad mode (QE=1). |
| 8 VCC | Power Supply | 1.65–1.95 V supply; decoupling capacitor (≥1 µF X7R) required within 5 mm of pin to suppress switching noise during page program/erase. |
Key Features
| Feature | Design Value |
|---|---|
| Continuous Read Mode | Enables true XIP with ≤8-clock instruction overhead and configurable 8/16/32/64-byte wrap - eliminates software address calculation latency in real-time boot sequences. |
| Quad Peripheral Interface (QPI) | Reduces instruction overhead via 2-clock-cycle opcodes - cuts command latency by >50% vs standard SPI, critical for high-frequency firmware reads in DSP-based systems. |
| Erase/Program Suspend & Resume | Allows background interrupt service while flash operations run - enables deterministic response to safety-critical events (e.g., CAN bus error frames) without aborting firmware updates. |
| Security Registers (3×256B) | OTP-lockable storage for cryptographic keys or calibration data - prevents runtime extraction even if main array is dumped via SPI. |
| JEDEC SFDP Register | Provides standardized, host-readable parameter table - eliminates hard-coded timing constants and enables automatic initialization across multiple flash vendors. |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
|
Use Scenario: Storing bootloader, FPGA configuration bitstream, and real-time motion control firmware in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Primary non-volatile code storage with XIP capability; serves as first-stage boot device accessed directly by ARM Cortex-M7 core at power-on reset. Use Value: 4KB sector erase enables incremental field firmware updates without disrupting operational logic; 20-year retention guarantees integrity over 15+ year product lifecycle. |
Use Scenario: Holding boot code and sensor fusion algorithms for radar/EPS ECUs requiring ASIL-B compliance and fast cold-start (<500 ms). IC Role / Device Role / Timing Role: Dual-quad SPI-configured boot memory mapped to Cortex-R5 cache line; delivers 50 MB/s sustained read for deterministic boot sequence timing. Use Value: Continuous Read Mode with 8-byte wrap reduces boot latency by 32% vs legacy parallel flash; SFDP auto-configuration simplifies qualification across ECU variants. |
| Medical Infusion Pump Parameter Storage | Smart Home Gateway OTA Storage |
|
Use Scenario: Retaining calibrated dosing parameters, usage logs, and regulatory audit trails in Class II infusion pumps with battery-backed operation. IC Role / Device Role / Timing Role: Secure parameter archive with hardware write-protection; leverages /WP pin and BP bits to prevent accidental overwrite during USB firmware upload. Use Value: Individual sector lock (36h/39h instructions) isolates calibration data from user-updatable fields; 100K endurance supports >10 years of daily recalibration cycles. |
Use Scenario: Storing compressed firmware images and delta patches for Zigbee/Z-Wave gateway devices updated over-the-air via TLS-secured MQTT. IC Role / Device Role / Timing Role: Dual-bank firmware storage enabling atomic A/B updates; uses chip erase (C7h) and sector lock (7Eh) to guarantee rollback-safe transitions. Use Value: 64KB block erase completes in <800 ms - meets FCC Part 15 sleep-mode duty cycle constraints; unique 64-bit ID enables per-device secure provisioning. |
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, 133MHz max SPI clock, no QPI mode, only Standard/Dual SPI support. | Lacks QPI and Continuous Read Mode - limits XIP efficiency in high-performance hosts; no SFDP register. | Select when cost sensitivity outweighs bandwidth needs and host lacks QPI support. |
| S25FL132K0XMFI010 | 32M-bit, 2.7–3.6V supply, 104MHz SPI, HyperBus interface option, no /HOLD pin, dedicated /RESET. | Requires 3.3V domain; HyperBus offers higher bandwidth but needs compatible controller; no /HOLD function reduces multi-device SPI arbitration flexibility. | Select for 3.3V systems needing HyperBus upgrade path or where /HOLD is unused. |
Compared with W25Q32FWSTIG TR, MX25L3233FZNI-10G trades QPI and SFDP for lower unit cost in legacy SPI-only designs, while S25FL132K0XMFI010 shifts to 3.3V operation and HyperBus readiness at the expense of 1.8V compatibility and /HOLD functionality.
Availability
W25Q32FWSTIG TR is available at Aetrix Electronics and suitable for industrial automation, automotive infotainment, and medical diagnostics equipment requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for W25Q32FWSTIG TR 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 DRAM, mobile DRAM, and serial flash memory solutions since 1987.
The W25Q series targets embedded systems requiring high-density, low-voltage, multi-interface non-volatile storage with robust security and long-term reliability for code execution and data logging.
FAQ
What is the operating voltage range for the W25Q32FWSTIG TR?
The W25Q32FWSTIG TR operates from 1.65 V to 1.95 V. This narrow 1.8V nominal range enables direct interfacing with modern ultra-low-power microcontrollers and FPGAs without level translation. Operation outside this window risks data corruption or failure to accept commands; VCC must ramp monotonically during power-up with /CS tracking VCC per datasheet Figure 57.
Does the W25Q32FWSTIG TR support Quad SPI mode out-of-the-box?
No, the W25Q32FWSTIG TR requires the Quad Enable (QE) bit in Status Register-2 to be set to '1' before Quad SPI mode activates. Until then, pins IO2 (/WP) and IO3 (/HOLD) remain dedicated to hardware protection functions. Setting QE is a volatile or non-volatile write operation (01h/31h) and must be verified via Read Status Register-2 (35h) before issuing Quad I/O instructions like 6Bh or EBh.
How does the /HOLD pin function differ between Standard SPI and Quad SPI modes on the W25Q32FWSTIG TR?
In Standard SPI mode (QE=0), /HOLD pauses ongoing reads/writes when pulled low while /CS is active, placing DO in high-Z and ignoring DI/CLK. In Quad SPI mode (QE=1), the /HOLD pin becomes IO3 and loses its hold function entirely - the pin is repurposed for bidirectional data transfer. The /HOLD or /RESET dual-role is only available in 8-pin packages and is disabled when QE=1.
Can the W25Q32FWSTIG TR be used for execute-in-place (XIP) applications?
Yes, the W25Q32FWSTIG TR supports true XIP via Continuous Read Mode with configurable 8/16/32/64-byte wrap and ≤8-clock instruction overhead. When combined with Fast Read Quad I/O (EBh) at 104MHz, it delivers 50MB/s sustained throughput - sufficient for real-time code execution from flash in Cortex-M and RISC-V systems without RAM shadowing.
What packaging and marking details define the W25Q32FWSTIG TR variant?
W25Q32FWSTIG TR denotes the 8-pin SOIC 208-mil (SS package code) variant with tape-and-reel packaging (TR suffix), industrial temperature grade (–40°C to +85°C), and lead-free, RoHS-compliant finish. Top-side marking reads "W25Q32FW" followed by date code and factory identifier; the 'IG' suffix confirms industrial temp rating per Winbond's ordering nomenclature in Section 10.12 of the datasheet.
W25Q32FWSTIG TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- 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 TR FAQ
1.How can I place an order for W25Q32FWSTIG TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q32FWSTIG TR 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 TR reliable?
The price and inventory of W25Q32FWSTIG TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q32FWSTIG TR is usually 5 days.
3.What payment methods are accepted for W25Q32FWSTIG TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q32FWSTIG TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q32FWSTIG TR?
W25Q32FWSTIG TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q32FWSTIG TR 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 TR?
For technical support, including W25Q32FWSTIG TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q32FWSTIG TR requirements.
6.How does Aetrix verify that W25Q32FWSTIG TR is sourced from the original manufacturer or authorized distributors?
All W25Q32FWSTIG TR 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 TR meets industry standards.
7.What is the process for return or replacement of W25Q32FWSTIG TR?
All W25Q32FWSTIG TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q32FWSTIG TR, 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 TR part is unused and in its original packaging.
Return procedure for W25Q32FWSTIG TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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