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Winbond Electronics Corporation W25Q32BVSSJG TR
- Part No.:
- W25Q32BVSSJG TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
W25Q32BVSSJG TR.pdf
- Description:
- IC FLASH 32MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,356
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Product details
Overview
W25Q32BVSSJG TR from Winbond is a 32M-bit (4MB) serial NOR flash memory IC supporting Standard, Dual, and Quad SPI interfaces. It features 16,384 pages of 256 bytes each, 4KB uniform sector erase, 104MHz dual SPI / 80MHz quad SPI clock rates, and operates from 2.7V–3.6V. It is used for code storage, XIP execution, and firmware parameter retention in embedded microcontrollers.
For engineers reviewing the W25Q32BVSSJG TR datasheet, W25Q32BVSSJG TR pinout, W25Q32BVSSJG TR application, or W25Q32BVSSJG TR equivalent, key selection criteria include quad I/O support with QE bit configuration, hardware write protection via /WP and /HOLD pins, 4KB sector granularity for flexible firmware updates, and continuous read mode enabling true execute-in-place operation.
Technical Context
The W25Q32BVSSJG TR implements a SPI-compatible command set with three operational modes: standard (DI/DO), dual (IO0/IO1), and quad (IO0–IO3). Its architecture includes a 256-byte page buffer, status register-1 and -2 with Quad Enable (QE) bit at bit-1 of SR2, and SFDP register for discoverable parameters.
Quad SPI functionality requires non-volatile setting of the QE bit; when enabled, /WP and /HOLD become IO2 and IO3, disabling their hardware protection roles. Erase/program suspend/resume capability enables background operations, and the 64-bit unique ID supports device-level traceability in secure boot applications.
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 (CLK, /CS, DI, DO, /WP, /HOLD), Dual SPI (IO0/IO1), Quad SPI (IO0–IO3) with QE bit enable |
| Max Clock Frequency | 104 MHz for Dual SPI, 80 MHz for Quad SPI - enables 208 MB/s (Dual) and 320 MB/s (Quad) effective throughput |
| Erase Granularity | Uniform 4KB sectors (1,024 total), 32KB blocks (512), 64KB blocks (64), and full chip erase - supports fine-grained firmware partitioning |
| Write Endurance & Retention | 100,000 program/erase cycles minimum; 20-year data retention at +25°C - suitable for field-upgradable embedded systems |
| Supply Voltage | 2.7 V to 3.6 V single supply - compatible with 3.3 V logic domains without level shifting |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade embedded and automotive control applications |
Pinout & Package
W25Q32BVSSJG TR uses an 8-pin SOIC 208-mil package (package code SS), with gull-wing leads, 1.27 mm pitch, and JEDEC MS-012AC compliant dimensions.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable; places DO in high-impedance state when deasserted; required low-to-high transition before new instruction acceptance |
| 2 DO (IO1) | Data Output / Bidirectional I/O1 | Serial data output in Standard/Dual SPI; becomes bidirectional I/O1 in Dual/Quad modes - used for read data and address transmission |
| 3 /WP (IO2) | Write Protect Input / Bidirectional I/O2 | Hardware write protection for status register when QE = 0; repurposed as IO2 in Quad SPI (QE = 1) |
| 4 GND | Ground Reference | Primary signal and power return path; must be low-impedance connection to system ground plane |
| 5 DI (IO0) | Data Input / Bidirectional I/O0 | Serial data/address input in Standard/Dual SPI; becomes bidirectional I/O0 in Dual/Quad modes - used for instruction and write data |
| 6 CLK | Serial Clock Input | Edge-triggered timing reference; supports SPI modes 0 and 3; max 104 MHz (Dual) / 80 MHz (Quad) |
| 7 /HOLD (IO3) | Hold Input / Bidirectional I/O3 | Pauses ongoing SPI transaction while /CS is active low; disabled in Quad SPI (QE = 1), where it serves as IO3 |
| 8 VCC | Power Supply | 2.7–3.6 V nominal supply; decoupling capacitor (0.1 µF ceramic) required 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 during sequential code fetch |
| Quad SPI with QE Bit Control | Non-volatile QE bit in Status Register-2 enables 4-line I/O; allows 4× bandwidth increase over standard SPI without external bus widening |
| Flexible Hardware Protection | /WP and /HOLD pins provide physical write lockout; combined with BP0–BP2, TB, SEC, and SRP bits for layered firmware integrity enforcement |
| Security Registers | Three 256-byte OTP-lockable security registers - usable for cryptographic keys, calibration data, or secure boot manifests |
| Unique 64-bit Serial Number | Factory-programmed per-device ID accessible via 4Bh instruction - enables device authentication and anti-cloning in production firmware |
| SFDP Register Support | JEDEC JESD216-compliant Serial Flash Discoverable Parameters - allows runtime configuration detection without hard-coded timing assumptions |
Applications
| Industrial PLC Firmware Storage | Automotive Infotainment Boot Code |
|---|---|
|
Use Scenario: Storing firmware images and configuration tables in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Non-volatile code and parameter storage with deterministic 4KB sector erase for incremental firmware updates. Use Value: 20-year data retention and −40°C to +85°C operation ensure reliable long-term deployment without recalibration or refresh. |
Use Scenario: Hosting boot loader and OS kernel for head-unit microprocessors requiring fast, secure startup sequences. IC Role / Device Role / Timing Role: XIP-capable serial flash delivering executable code directly over Quad SPI at up to 320 MB/s effective rate. Use Value: Continuous Read Mode reduces instruction fetch latency, cutting boot time by >35% versus standard SPI flash in measured benchmarks. |
| Medical Device Calibration Data | IoT Edge Node OTA Updates |
|
Use Scenario: Storing calibrated sensor offsets and safety-critical operational limits in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage using hardware /WP lock and OTP-locked security registers. Use Value: 64-bit unique ID and SFDP register allow authenticated firmware validation and field-replaceable calibration certificate binding. |
Use Scenario: Enabling over-the-air firmware patches in battery-powered wireless sensors with constrained PCB area. IC Role / Device Role / Timing Role: Low-power serial flash with 1 µA deep power-down current and 4KB sector erase for atomic delta updates. Use Value: Sector-level granularity minimizes write time and energy per update; 100,000-cycle endurance supports multi-year field service life. |
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 | 32Mb density, 104MHz max clock, SOIC-8 package; lacks Quad SPI I/O (IO2/IO3) and QE bit - supports only Standard/Dual SPI | No hardware-assisted quad I/O; cannot achieve 320 MB/s throughput or true XIP at same latency | Select when Quad SPI is unnecessary and cost sensitivity outweighs performance margin |
| S25FL132K0XMFI010 | 32Mb density, 80MHz Quad SPI, SOIC-8; includes configurable reset pin and enhanced security (AES-128 encryption engine) | Requires additional security co-processor integration; higher BOM cost but mandatory for FIPS-140-2 Level 2 compliance | Select when cryptographic acceleration and certified secure boot are required beyond basic write protection |
Compared with W25Q32BVSSJG TR, MX25L3233FZNI-10G omits quad I/O capability and thus cannot support high-throughput XIP, while S25FL132K0XMFI010 adds AES encryption but increases system complexity and cost - W25Q32BVSSJG TR balances performance, flexibility, and industrial qualification without premium security overhead.
Availability
W25Q32BVSSJG TR is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive infotainment boot code, medical device calibration data, and IoT edge node OTA updates requiring stable component supply across multi-year production cycles.
Supply support for W25Q32BVSSJG 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 company specializing in specialty memory solutions, including serial flash, mobile DRAM, and code storage devices for embedded systems.
The W25Q series was designed specifically for high-performance, space-constrained embedded applications requiring robust code storage, fast XIP execution, and flexible firmware update mechanisms - targeting industrial, automotive, and consumer electronics markets.
FAQ
What is the package type and lead count of the W25Q32BVSSJG TR?
The W25Q32BVSSJG TR uses an 8-pin SOIC 208-mil (0.208 inch wide) package with gull-wing leads and 1.27 mm pitch. This package code "SS" is explicitly defined in the Winbond datasheet section 9.1 and matches the top-side marking convention for this variant. The device has exactly eight signal terminals: /CS, DO, /WP, GND, DI, CLK, /HOLD, and VCC - no NC pins.
Does the W25Q32BVSSJG TR support Quad SPI, and what is required to enable it?
Yes, the W25Q32BVSSJG TR supports Quad SPI operation, but it requires the non-volatile Quad Enable (QE) bit - located at bit-1 of Status Register-2 - to be set to '1'. Once enabled, the /WP and /HOLD pins become IO2 and IO3 respectively. This configuration is persistent across power cycles and must be programmed using the Write Status Register (01h) instruction with appropriate write enable sequence.
What is the maximum clock frequency supported by the W25Q32BVSSJG TR in different SPI modes?
The W25Q32BVSSJG TR supports up to 104 MHz in Dual SPI mode and 80 MHz in Quad SPI mode. In Standard SPI mode, the maximum clock is 80 MHz. These frequencies enable effective data transfer rates of 208 MB/s (Dual) and 320 MB/s (Quad) using Fast Read Dual I/O (BBh) and Fast Read Quad I/O (EBh) instructions respectively - confirmed in datasheet sections 2 and 8.6.
How does hardware write protection work on the W25Q32BVSSJG TR?
Hardware write protection on the W25Q32BVSSJG TR is implemented via the /WP pin, which - when held low - prevents writes to the status register. This function is active only when the Quad Enable (QE) bit is cleared (QE = 0); when QE = 1, /WP becomes IO2 and hardware protection is disabled. Full array protection also requires correct configuration of Block Protect (BP2–BP0), Top/Bottom (TB), and Status Register Protect (SRP0/SRP1) bits.
Is the W25Q32BVSSJG TR suitable for execute-in-place (XIP) applications?
Yes, the W25Q32BVSSJG TR is explicitly designed for XIP operation. Its Continuous Read Mode reduces instruction overhead to as few as 8 clocks per 24-bit address, and Quad SPI support enables sustained 320 MB/s throughput - both critical for low-latency code execution directly from flash. Datasheet section 1 confirms XIP suitability, and section 6.1.3 details Fast Read Quad I/O (EBh) as the primary XIP instruction.
W25Q32BVSSJG 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
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 50µs, 3ms
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
W25Q32BVSSJG TR FAQ
1.How can I place an order for W25Q32BVSSJG TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q32BVSSJG 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 W25Q32BVSSJG TR reliable?
The price and inventory of W25Q32BVSSJG TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q32BVSSJG TR is usually 5 days.
3.What payment methods are accepted for W25Q32BVSSJG TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q32BVSSJG TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q32BVSSJG TR?
W25Q32BVSSJG TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q32BVSSJG 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 W25Q32BVSSJG TR?
For technical support, including W25Q32BVSSJG TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q32BVSSJG TR requirements.
6.How does Aetrix verify that W25Q32BVSSJG TR is sourced from the original manufacturer or authorized distributors?
All W25Q32BVSSJG 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 W25Q32BVSSJG TR meets industry standards.
7.What is the process for return or replacement of W25Q32BVSSJG TR?
All W25Q32BVSSJG TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q32BVSSJG 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 W25Q32BVSSJG TR part is unused and in its original packaging.
Return procedure for W25Q32BVSSJG TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q32BVSSJG TR Tags
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