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Winbond Electronics Corporation W25Q32JVSSJQ
- Part No.:
- W25Q32JVSSJQ
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
W25Q32JVSSJQ.pdf
- Description:
- IC FLASH 32MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,760
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Product details
Overview
W25Q32JVSSJQ from Winbond is a 32M-bit (4MB) serial NOR flash memory IC supporting Standard, Dual, and Quad SPI interfaces. It operates from 2.7V to 3.6V, delivers up to 133MHz clock rate (532MHz equivalent Quad I/O), and features uniform 4KB sectors, 100K program-erase cycles, and 20-year data retention. It is used for code execution (XIP), firmware storage, and parameter logging in space-constrained embedded systems.
For engineers reviewing the W25Q32JVSSJQ datasheet, W25Q32JVSSJQ pinout, W25Q32JVSSJQ application, or W25Q32JVSSJQ equivalent, key selection considerations include Quad SPI enable (QE bit), /HOLD vs. /RESET pin availability per package, sector-level write protection granularity, and continuous read with wrap support for deterministic XIP latency.
Technical Context
The W25Q32JVSSJQ implements a flexible SPI command architecture supporting three operational modes: Standard (DI/DO), Dual (IO0/IO1), and Quad (IO0–IO3), with Quad mode requiring non-volatile QE bit setting in Status Register-2. Its internal block diagram integrates a 256-byte page buffer, SFDP register for discoverable parameters, and three 256-byte security registers.
It supports hardware write protection via active-low /WP and /HOLD pins (shared with IO3 in Quad mode), plus software-controlled protection using BP0–BP2, TB, SEC, CMP, and SRP bits. The device includes both software reset (66h+99h) and hardware /RESET - though the latter is absent in the SOIC-208-mil (SS) package of W25Q32JVSSJQ.
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; Quad requires QE=1 in Status Register-2 |
| Max Clock Rate | 133 MHz single-ended; enables 532 MB/s effective throughput in Quad I/O mode |
| Erase Granularity | Uniform 4 KB sectors (1,024 total), 32 KB blocks (512), 64 KB blocks (64), full-chip erase |
| Endurance & Retention | 100,000 program/erase cycles per sector; >20 years data retention at +85°C |
| Supply Voltage | 2.7 V to 3.6 V; typical power-down current <1 µA |
| Operating Temp | –40°C to +85°C (Industrial Grade); compatible with extended industrial thermal profiles |
Pinout & Package
W25Q32JVSSJQ uses an 8-pin SOIC 208-mil (Package Code SS) with gull-wing leads, 208-mil body width, and standard JEDEC MS-012AC footprint. Pin 1 is marked with a beveled corner or dot; no dedicated /RESET pin is present in this variant.
| Pin/Terminal | 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 sector lock control; becomes IO2 when QE=1 (Quad mode) |
| 4 GND | Ground Reference | Primary return path for VCC and I/O signals; decoupling capacitor required near 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 SPI Mode 0 and Mode 3 |
| 7 /HOLD (IO3) | Hold Input / I/O3 | Pauses ongoing read/write; becomes IO3 when QE=1 (no /RESET function in SS package) |
| 8 VCC | Power Supply | 2.7–3.6 V supply; requires local 0.1 µF ceramic decoupling |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPI with Wrap Read | Enables true execute-in-place (XIP) with configurable 8/16/32/64-byte burst wrap, reducing address overhead |
| Volatile & Non-Volatile Protection | Combines hardware /WP pin with software-configurable BP/TB/SEC/CMP bits for layered, sector-granular lockdown |
| Security Registers | Three independent 256-byte OTP-capable registers for keys, certificates, or calibration data |
| SFDP Compliance | JEDEC JESD216-compliant Serial Flash Discoverable Parameters register for automatic driver configuration |
| Unique 64-bit ID | Factory-programmed immutable serial number per die for traceability and secure boot binding |
Applications
| IoT Edge Node Firmware Storage | Industrial PLC Boot Memory |
|---|---|
Use Scenario: Storing bootloader, RTOS image, and field-upgradable application firmware in battery-powered wireless sensors. IC Role / Device Role / Timing Role: Primary non-volatile code storage with Quad SPI XIP capability to minimize external RAM usage and reduce BOM cost. Use Value: 4KB sector erase enables atomic firmware updates without disrupting active runtime partitions; <1 µA power-down extends battery life in sleep cycles. | Use Scenario: Holding safety-critical control logic and configuration data in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Industrial-grade boot memory interfacing with ARM Cortex-M7 microcontrollers via Quad SPI at 80+ MHz sustained read rates. Use Value: 100K endurance and –40°C to +85°C rating ensure reliable reprogramming over 10+ years; /WP pin provides hardware-level write lock during runtime. |
| Medical Device Parameter Logging | Automotive Infotainment UI Assets |
Use Scenario: Recording calibrated sensor offsets, user preferences, and diagnostic logs in portable ultrasound or glucose monitors. IC Role / Device Role / Timing Role: Parameter storage with individual sector locking (via LB1–LB3 and BP bits) to protect calibration constants from accidental overwrite. Use Value: Security registers store cryptographic keys for log integrity verification; SFDP auto-negotiation simplifies driver porting across MCU platforms. | Use Scenario: Hosting compressed GUI assets, font tables, and audio prompts in automotive head units with strict ASIL-B-aware boot chains. IC Role / Device Role / Timing Role: High-bandwidth asset fetcher supporting 66 MB/s continuous read to feed GPU texture pipelines without stalling. Use Value: Quad I/O mode eliminates parallel bus routing congestion; unique 64-bit ID enables secure firmware signing and anti-cloning enforcement. |
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, no Quad Enable bit; uses different status register layout and lacks SFDP | Requires custom driver adaptation; no hardware /HOLD pin; lower max throughput (416 MB/s Quad equivalent) | Select if legacy SPI-only interface suffices and SFDP auto-configuration is unnecessary |
| S25FL132K0XMFI010 | 32 M-bit, 80 MHz max clock, Cypress-compatible command set; includes on-die ECC and configurable dummy cycles | Higher reliability for long-term data logging; larger 65 nm geometry; no /WP pin in 8-pin SOIC variant | Select when built-in ECC for extended data retention or AEC-Q100 qualification is required |
Compared with MX25L3233FZNI-10G and S25FL132K0XMFI010, W25Q32JVSSJQ offers higher Quad SPI bandwidth, JEDEC SFDP compliance for plug-and-play driver initialization, and integrated hardware write protection via /WP - making it optimal for new designs prioritizing XIP performance, firmware agility, and industrial robustness.
Availability
W25Q32JVSSJQ is available at Aetrix Electronics and suitable for IoT edge node firmware storage, industrial PLC boot memory, and medical device parameter logging requiring stable component supply, long-lifecycle assurance, and consistent SOIC-208-mil packaging.
Supply support for W25Q32JVSSJQ 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 for embedded, communications, and consumer markets.
The W25Q series was designed specifically for high-performance, low-power code storage and execution in resource-constrained microcontroller systems - emphasizing Quad SPI throughput, sector-level flexibility, and industrial-grade reliability.
FAQ
Does W25Q32JVSSJQ support hardware reset via /RESET pin?
No, W25Q32JVSSJQ uses the SOIC-208-mil (SS) package, which does not include a dedicated /RESET pin. The /HOLD pin (Pin 7) serves as IO3 in Quad mode but cannot function as hardware reset. Reset must be performed via software sequence (66h followed by 99h). Hardware /RESET is only available on SOIC-16 (SF) and TFBGA (TB/TC) packages.
What is the minimum number of clocks required to initiate a read operation on W25Q32JVSSJQ?
W25Q32JVSSJQ supports "Continuous Read with Wrap" requiring as few as 8 clock cycles to address memory after instruction issuance. For Fast Read (0Bh), the sequence is instruction (8 clocks) + 3-byte address (24 clocks) + dummy cycles (varies by mode), but the wrap feature reduces effective address latency in burst reads - critical for XIP performance.
Can W25Q32JVSSJQ be used for execute-in-place (XIP) applications?
Yes, W25Q32JVSSJQ supports true XIP via Fast Read Quad I/O (EBh) and Continuous Read with configurable 8/16/32/64-byte wrap. Its 133 MHz Quad SPI clock enables up to 532 MB/s effective throughput, outperforming many parallel flash alternatives while eliminating need for external RAM buffering of code.
How is write protection implemented on W25Q32JVSSJQ?
W25Q32JVSSJQ implements dual-layer write protection: hardware via active-low /WP pin (Pin 3), and software via Status Register bits BP2–BP0, TB, SEC, CMP, and SRP. The /WP pin locks status register writes; software bits allow granular 4KB sector or full-array protection. Both layers must be configured to achieve robust firmware immutability.
Is W25Q32JVSSJQ compatible with JEDEC JESD216 SFDP standard?
Yes, W25Q32JVSSJQ includes a JEDEC JESD216-compliant SFDP register that exposes device parameters (density, erase types, timing, Quad Enable method) in standardized format. This enables automatic driver configuration in modern MCUs like STM32, NXP i.MX, and Renesas RA series without hard-coded assumptions.
W25Q32JVSSJQ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- 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:
- 133 MHz
- Write Cycle Time - Word, Page:
- 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
W25Q32JVSSJQ FAQ
1.How can I place an order for W25Q32JVSSJQ through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q32JVSSJQ 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 W25Q32JVSSJQ reliable?
The price and inventory of W25Q32JVSSJQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q32JVSSJQ is usually 5 days.
3.What payment methods are accepted for W25Q32JVSSJQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q32JVSSJQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q32JVSSJQ?
W25Q32JVSSJQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q32JVSSJQ 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 W25Q32JVSSJQ?
For technical support, including W25Q32JVSSJQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q32JVSSJQ requirements.
6.How does Aetrix verify that W25Q32JVSSJQ is sourced from the original manufacturer or authorized distributors?
All W25Q32JVSSJQ 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 W25Q32JVSSJQ meets industry standards.
7.What is the process for return or replacement of W25Q32JVSSJQ?
All W25Q32JVSSJQ units undergo pre-shipment inspection (PSI). If there is an issue with W25Q32JVSSJQ, 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 W25Q32JVSSJQ part is unused and in its original packaging.
Return procedure for W25Q32JVSSJQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q32JVSSJQ Tags
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M24C02-WMN6TP
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