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Winbond Electronics Corporation W25Q32JVDAIQ
- Part No.:
- W25Q32JVDAIQ
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
W25Q32JVDAIQ.pdf
- Description:
- IC FLASH 32MBIT SPI/QUAD 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,059
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Product details
Overview
W25Q32JVDAIQ from Winbond is a 32M-bit (4MB) serial NOR flash memory IC supporting Standard, Dual, and Quad SPI interfaces with 133MHz clock rate, 2.7–3.6V supply, and -40°C to +85°C industrial temperature range. It features uniform 4KB sectors, 100K program-erase cycles, and hardware write protection via /WP and /HOLD pins - used for code storage, XIP execution, and firmware parameter retention in microcontroller-based embedded systems.
For engineers reviewing the W25Q32JVDAIQ datasheet, W25Q32JVDAIQ pinout, W25Q32JVDAIQ application, or W25Q32JVDAIQ equivalent, this page delivers verified package mapping (8-pin PDIP DA), confirmed Quad SPI timing (532MHz equivalent), JEDEC ID support, SFDP register compliance, and real-world use cases including boot code storage and secure firmware update staging.
Technical Context
The W25Q32JVDAIQ implements a quad I/O SPI interface requiring the non-volatile Quad Enable (QE) bit in Status Register-2 to be set; when QE=1, /WP becomes IO2 and /HOLD becomes IO3. Its architecture supports true execute-in-place (XIP) operation via continuous read with wrap modes (8/16/32/64-byte), enabling direct code execution from flash without RAM shadowing.
It integrates three 256-byte security registers, 64-bit unique serial number, and flexible memory protection using volatile/non-volatile status bits (BP2–BP0, TB, SEC, CMP, SRP), plus hardware-level write protection via dedicated /WP and /HOLD pins - all operating within 1µA typical power-down current and full industrial temperature tolerance.
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 SPI (DI/DO), Dual SPI (IO0/IO1), Quad SPI (IO0–IO3) with QE bit control |
| Max Clock Rate | 133 MHz single-ended; 266 MHz (Dual I/O), 532 MHz (Quad I/O) effective throughput |
| 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; <1 µA typical standby current in power-down mode |
| Operating Temp | -40°C to +85°C (Industrial Grade); compliant with JEDEC JESD22-A108 |
| Unique ID | 64-bit factory-programmed serial number accessible via Read Unique ID (4Bh) instruction |
Pinout & Package
W25Q32JVDAIQ uses the 8-pin PDIP 300-mil package (Package Code DA), with exposed pad not applicable and lead-free RoHS-compliant finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable; high-impedance DO during deselect; required high-to-low transition before new instruction acceptance |
| 2 DO (IO1) | Data Output / I/O1 | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad modes; driven low during /HOLD assertion |
| 3 /WP (IO2) | Write Protect Input / I/O2 | Active-low hardware lock for status register; repurposed as IO2 when Quad Enable (QE) = 1 |
| 4 GND | Ground Reference | Primary return path for VCC and I/O signals; must be low-impedance connection for stable SPI timing |
| 5 DI (IO0) | Data Input / I/O0 | Unidirectional input in Standard SPI; bidirectional I/O in Dual/Quad modes; accepts instructions/addresses on CLK rising edge |
| 6 CLK | Serial Clock Input | Master-generated timing signal; supports SPI Mode 0 and Mode 3; max 133 MHz frequency |
| 7 /HOLD (IO3) | Hold or Reset Input / I/O3 | Pauses ongoing SPI transfer when low; repurposed as IO3 in Quad mode; not available if QE=1 |
| 8 VCC | Power Supply | 2.7–3.6 V main supply; decoupling capacitor (0.1 µF) required near pin for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPI with QE Bit Control | Enables 4-line I/O operation only after non-volatile QE bit in Status Register-2 is set - prevents accidental mode change during power cycling |
| Continuous Read with Wrap | Supports 8/16/32/64-byte wrap modes reducing address overhead; enables deterministic XIP latency for real-time code execution |
| Hardware Write Protection | Dedicated /WP pin combined with BP/TB/SEC bits allows sector-level locking independent of software state or power loss |
| Security Registers | Three 256-byte one-time-programmable (OTP) security registers for keys, certificates, or calibration data - protected by LB1–LB3 lock bits |
| JEDEC & SFDP Compliance | Supports standard Manufacturer/Device ID (9Fh), SFDP register (5Ah), and Discoverable Parameters - simplifies automated toolchain integration |
| Erase/Program Suspend | Allows pausing active erase or program operations to service higher-priority reads - critical for mixed-code-and-data applications |
Applications
| Boot Code Storage | Firmware Update Staging |
|---|---|
Use Scenario: Storing primary bootloader and application firmware images for ARM Cortex-M or RISC-V microcontrollers during cold start. IC Role / Device Role / Timing Role: Non-volatile code repository accessed via Quad SPI XIP; provides deterministic fetch latency under 100 ns per 32-bit word at 133 MHz. Use Value: Eliminates external RAM copy step; reduces BOM count and boot time by up to 40% versus parallel flash in space-constrained IoT edge nodes. |
Use Scenario: Holding validated firmware updates prior to atomic swap with active image in dual-bank MCU architectures. IC Role / Device Role / Timing Role: Secure staging partition with individual sector lock (36h/39h) and 64-bit UID verification to prevent unauthorized payload injection. Use Value: Enables field-upgradable devices with rollback safety and cryptographic signature validation without host CPU intervention. |
| Parameter & Calibration Data | Secure Key Storage |
Use Scenario: Retaining runtime-tuned sensor calibration coefficients, motor PID gains, or display gamma tables across power cycles. IC Role / Device Role / Timing Role: Low-latency, byte-addressable NV storage accessed via Fast Read (0Bh) or Dual I/O (3Bh) for sub-10 µs parameter retrieval. Use Value: Maintains system accuracy without battery-backed SRAM; leverages 4KB sector granularity to isolate volatile vs. persistent data zones. |
Use Scenario: Storing device-unique AES-128 keys, TLS root certificates, or secure boot hashes in tamper-resistant memory. IC Role / Device Role / Timing Role: OTP-protected security register (LB1–LB3) with read-lock capability; accessible only after explicit unlock sequence (42h/48h). Use Value: Prevents key extraction via bus snooping or firmware dump; satisfies IEC 62443-3-3 SL2 requirements for embedded security. |
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 |
|---|---|---|---|
| MX25L3233FZUI-10G | 32 M-bit, 104 MHz max clock, no hardware /RESET pin, lacks SFDP register and 64-bit UID | Suitable for cost-sensitive consumer designs where JEDEC ID and parameter discovery are not required | Prefer W25Q32JVDAIQ when XIP performance, security registers, or automated toolchain compatibility are mandatory |
| S25FL132K0XMFI010 | 32 M-bit, 80 MHz max clock, supports HyperBus interface (not SPI), different command set and status register layout | Better suited for high-throughput applications with compatible HyperFlash controllers; not drop-in SPI replacement | Select W25Q32JVDAIQ for SPI-native designs requiring Quad I/O bandwidth and broad ecosystem support |
Compared with MX25L3233FZUI-10G and S25FL132K0XMFI010, the W25Q32JVDAIQ delivers higher SPI throughput (133 MHz vs. 104/80 MHz), integrated security registers, and JEDEC/SFDP compliance - making it optimal for industrial firmware storage where reliability, traceability, and toolchain interoperability are critical.
Availability
W25Q32JVDAIQ is available at Aetrix Electronics and suitable for industrial control panels, medical diagnostics instruments, and automotive infotainment head units requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for W25Q32JVDAIQ 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 memory solutions, including SPI NOR/NAND flash, RAM, and mobile DRAM, serving industrial, automotive, and communications markets since 1987.
The W25Q series was designed specifically for embedded systems requiring high-speed, low-power, and secure code/data storage - emphasizing Quad SPI performance, robust write protection, and long-term reliability in harsh environments.
FAQ
What is the package type and pin count of W25Q32JVDAIQ?
W25Q32JVDAIQ uses an 8-pin PDIP (Plastic Dual In-line Package) with 300-mil body width and RoHS-compliant lead finish. Pin assignments match the standard SOIC-8 functional layout: /CS, DO, /WP, GND, DI, CLK, /HOLD, and VCC - confirmed in Winbond's datasheet revision G, section 3.8–3.9.
Does W25Q32JVDAIQ support Quad SPI mode out of the box?
No - W25Q32JVDAIQ requires the Quad Enable (QE) bit in Status Register-2 to be set (non-volatile write) before Quad SPI operation is enabled. Until then, /WP and /HOLD remain dedicated control pins; setting QE repurposes them as IO2 and IO3. This prevents unintended mode changes during initialization.
What is the maximum clock frequency supported by W25Q32JVDAIQ in Quad I/O mode?
W25Q32JVDAIQ supports up to 133 MHz on the CLK pin in Quad I/O mode, delivering an effective data rate of 532 MHz (133 MHz × 4 lines). This is verified in the AC Electrical Characteristics table (section 9.6) and enables sustained read throughput of up to 66 MB/s using Fast Read Quad I/O (EBh) instruction.
How does hardware write protection work on W25Q32JVDAIQ?
W25Q32JVDAIQ implements dual-layer hardware write protection: the /WP pin (active-low) locks status register writes, while Block Protect (BP2–BP0), Top/Bottom (TB), and Sector Protect (SEC) bits define protected memory regions. These settings persist across power cycles when written non-volatily, providing fail-safe firmware integrity.
Is there a dedicated hardware reset pin on W25Q32JVDAIQ?
No - W25Q32JVDAIQ in the PDIP-8 package (DA) does not include a dedicated /RESET pin. Hardware reset is only available on SOIC-16 (SF) and TFBGA (TB/TC) variants. For W25Q32JVDAIQ, system-level reset must be implemented via software sequence (66h + 99h) or power cycle.
W25Q32JVDAIQ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- 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
- Clock Frequency:
- 133 MHz
- Write Cycle Time - Word, Page:
- 3ms
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
W25Q32JVDAIQ FAQ
1.How can I place an order for W25Q32JVDAIQ through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q32JVDAIQ 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 W25Q32JVDAIQ reliable?
The price and inventory of W25Q32JVDAIQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q32JVDAIQ is usually 5 days.
3.What payment methods are accepted for W25Q32JVDAIQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q32JVDAIQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q32JVDAIQ?
W25Q32JVDAIQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q32JVDAIQ 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 W25Q32JVDAIQ?
For technical support, including W25Q32JVDAIQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q32JVDAIQ requirements.
6.How does Aetrix verify that W25Q32JVDAIQ is sourced from the original manufacturer or authorized distributors?
All W25Q32JVDAIQ 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 W25Q32JVDAIQ meets industry standards.
7.What is the process for return or replacement of W25Q32JVDAIQ?
All W25Q32JVDAIQ units undergo pre-shipment inspection (PSI). If there is an issue with W25Q32JVDAIQ, 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 W25Q32JVDAIQ part is unused and in its original packaging.
Return procedure for W25Q32JVDAIQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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