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Winbond Electronics Corporation W25Q32JVZEJM
- Part No.:
- W25Q32JVZEJM
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
W25Q32JVZEJM.pdf
- Description:
- IC FLASH 32MBIT SPI/QUAD 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:4,057
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Product details
Overview
W25Q32JVZEJM from Winbond is a 32M-bit (4MB) serial NOR flash memory IC supporting Standard, Dual, and Quad SPI interfaces with 133MHz clock rate, 66MB/s continuous read throughput, and 4KB uniform sector architecture. It operates from 2.7V–3.6V, draws <1µA in power-down mode, and targets code storage, XIP execution, and firmware parameter retention in industrial embedded systems.
For engineers reviewing the W25Q32JVZEJM datasheet, W25Q32JVZEJM pinout, W25Q32JVZEJM application, or W25Q32JVZEJM equivalent, key selection criteria include Quad SPI enable (QE bit), /HOLD vs /RESET pin availability per package, 4KB sector granularity for OTA updates, and hardware write protection via /WP pin.
Technical Context
The W25Q32JVZEJM implements a SPI-compatible command set with volatile/non-volatile status registers controlling erase/program protection, quad enable (QE), and output drive strength. Its block diagram integrates a 256-byte page buffer, SFDP register for discoverable parameters, and three 256-byte security registers for secure boot keys.
It supports SPI modes 0 and 3, Fast Read Quad I/O (EBh) at up to 532MHz effective bandwidth, and features Erase/Program Suspend & Resume for real-time interrupt handling. The device uses internal high-voltage generators for erase/program cycles without external charge pumps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32M-bit (4MB) 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 | 133MHz single-ended; enables 266MHz (Dual) or 532MHz (Quad) effective throughput |
| Erase Granularity | Uniform 4KB sectors (1,024 total), 32KB blocks (512), 64KB blocks (64), full chip |
| Write Endurance | Minimum 100,000 program-erase cycles per sector |
| Data Retention | Greater than 20 years at +25°C |
| Operating Voltage | 2.7V to 3.6V supply; compatible with 3.3V logic systems |
| Temperature Range | -40°C to +105°C (Industrial Plus grade) |
Pinout & Package
W25Q32JVZEJM is packaged in an 8-pad WSON 6×5-mm (Package Code ZP) with exposed thermal pad. Pin 1 is /CS; pins 2–3 and 5 are bidirectional I/Os (IO1, IO2, IO0); pin 4 is GND; pin 6 is CLK; pin 7 is /HOLD or /RESET (function depends on QE bit state); pin 8 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable: high = high-impedance DO/IOs, low = active SPI communication |
| 2 DO (IO1) | Data Output / I/O1 | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad modes |
| 3 /WP (IO2) | Write Protect / I/O2 | Hardware lock for status register when QE=0; becomes IO2 in Quad mode (QE=1) |
| 4 GND | Ground Reference | Primary return path for VCC and signal currents; connects to thermal pad |
| 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 for all SPI operations; supports Mode 0 and Mode 3 |
| 7 /HOLD or /RESET | Hold or Reset Input | HOLD active-low pause during active /CS; /RESET only functional if QE=0 (not dedicated reset pin) |
| 8 VCC | Power Supply | 2.7–3.6V supply; decoupling capacitor required near pin for stable operation |
Key Features
| Feature | Design Value |
|---|---|
| Quad Enable (QE) bit | Non-volatile Status Register-2 bit enabling IO2/IO3 for Quad SPI; controls /WP and /HOLD function mapping |
| Continuous Read with Wrap | 8/16/32/64-byte wrap modes reduce address overhead; enables true XIP execution without address wrap logic |
| Erase/Program Suspend | Allows host to pause ongoing erase/program to service higher-priority interrupts, then resume without data loss |
| 64-bit Unique ID | Factory-programmed immutable serial number for device authentication and firmware binding |
| SFDP Register | JEDEC-standard 256-byte parameter table enabling automatic driver configuration without hard-coded timing values |
| Security Registers | Three independent 256-byte OTP-capable registers for secure key storage, tamper-resistant boot code, or calibration data |
Applications
| Boot Code Storage | Firmware Over-the-Air Updates |
|---|---|
Use Scenario: Storing bootloader and primary application firmware for microcontrollers in industrial gateways. IC Role / Device Role / Timing Role: Non-volatile code storage with XIP support via Quad SPI for deterministic startup latency. Use Value: 4KB sector erase enables atomic firmware swap without disrupting running system; 133MHz Quad SPI reduces boot time by >4× vs parallel flash. | Use Scenario: Receiving and validating encrypted firmware patches in connected medical devices. IC Role / Device Role / Timing Role: Secure, field-upgradable storage for signed firmware images and rollback-safe version metadata. Use Value: Three 256-byte security registers store asymmetric keys; individual sector lock prevents partial overwrite during patch application. |
| Parameter & Calibration Data | Human-Machine Interface Logging |
Use Scenario: Persisting sensor calibration coefficients and user-configurable thresholds in factory automation PLCs. IC Role / Device Role / Timing Role: Low-power, byte-addressable non-volatile storage with hardware write protection against runtime corruption. Use Value: /WP pin tied low provides unconditional status register lock; 100K-cycle endurance supports daily recalibration over 10+ years. | Use Scenario: Recording operator actions, alarm events, and timestamped diagnostics in HMI panels. IC Role / Device Role / Timing Role: High-reliability circular buffer storage with wear-leveling managed by host MCU. Use Value: Uniform 4KB sectors simplify wear-leveling algorithms; <1µA power-down extends battery life in backup-powered logging. |
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, 104MHz max clock, no dedicated /RESET pin, supports DTR mode | Lacks hardware reset; requires software reset sequence only; DTR mode adds complexity but improves throughput | Choose for cost-sensitive designs where /RESET is not required and DTR timing margins are acceptable |
| S25FL132K0XMFI010 | 32M-bit, 80MHz max clock, 1.8V/3.0V dual supply, no SFDP register | Lower speed; dual-voltage operation adds flexibility but requires level-shifting in 3.3V-only systems; no auto-configurable SFDP | Choose when mixed-voltage compatibility is needed and host driver can manage fixed timing parameters |
Compared with MX25L3233FZNI-10G and S25FL132K0XMFI010, the W25Q32JVZEJM delivers higher throughput (133MHz vs ≤104MHz), integrated SFDP for plug-and-play driver initialization, and industrial-plus temperature rating (−40°C to +105°C), making it optimal for high-reliability edge computing nodes requiring fast, secure, and thermally robust firmware storage.
Availability
W25Q32JVZEJM is available at Aetrix Electronics and suitable for industrial automation controllers, medical diagnostic equipment, and automotive infotainment head units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for W25Q32JVZEJM 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 NOR/NAND flash, RAM, and mobile DRAM, serving industrial, automotive, and consumer markets since 1987.
The W25Q series is designed for high-performance, space-constrained embedded systems requiring reliable code storage, secure firmware updates, and seamless XIP execution - with W25Q32JVZEJM targeting Industrial Plus applications demanding extended temperature operation and robust data integrity.
FAQ
What is the package type and footprint of W25Q32JVZEJM?
W25Q32JVZEJM uses an 8-pad WSON 6×5-mm package (JEDEC MO-241AC) with exposed thermal pad. Its footprint matches standard WSON-8 land patterns, and pin 1 (/CS) is marked by a dot or beveled corner. This compact package supports reflow soldering and offers superior thermal performance versus SOIC variants, making it ideal for dense PCB layouts in industrial modules where board space is constrained. The W25Q32JVZEJM datasheet specifies exact pad dimensions and stencil recommendations in Section 9.4.
Does W25Q32JVZEJM support hardware reset, and how is it implemented?
W25Q32JVZEJM does not include a dedicated hardware /RESET pin in its WSON-8 (ZP) package. Pin 7 functions as /HOLD in Standard/Dual SPI mode and as IO3 in Quad SPI mode - it cannot assert hardware reset. Hardware reset is only available on SOIC-16 and TFBGA packages. For W25Q32JVZEJM, system-level reset must use the software sequence: Enable Reset (66h) followed by Reset Device (99h), which takes ~30µs. This is fully documented in Section 5.4 of the W25Q32JVZEJM datasheet.
How is Quad SPI mode enabled on W25Q32JVZEJM, and what changes occur to pin functionality?
Quad SPI mode on W25Q32JVZEJM is enabled by setting the Quad Enable (QE) bit in Status Register-2 (SR2). When QE = 1, pins 3 (/WP) and 7 (/HOLD) become IO2 and IO3 respectively, completing the four I/O lines required for Quad operations. This change is non-volatile and persists across power cycles. The W25Q32JVZEJM must be configured using Write Status Register-2 (31h) with appropriate write enable sequence. Failure to set QE will result in IO2/IO3 remaining in hardware protection mode, preventing Quad instruction execution.
What is the purpose and behavior of the /WP pin on W25Q32JVZEJM?
The /WP pin on W25Q32JVZEJM provides hardware-level write protection for the status register when QE = 0. It is active-low: tying /WP low locks BP, TB, SEC, CMP, and SRP bits, preventing accidental modification of memory protection settings. When QE = 1 (Quad mode enabled), /WP becomes IO2 and loses its protection function. The W25Q32JVZEJM datasheet specifies that /WP must be driven externally - internal pull-ups are not provided - so proper external biasing is required for reliable protection in industrial environments with EMI risk.
Can W25Q32JVZEJM be used for Execute-in-Place (XIP) applications, and what performance benefits does it offer?
Yes, W25Q32JVZEJM supports true Execute-in-Place (XIP) via Fast Read Quad I/O (EBh) instructions, achieving up to 532MHz effective bandwidth. Its continuous read with 8/16/32/64-byte wrap eliminates address increment overhead, enabling deterministic instruction fetch timing. Benchmarks show W25Q32JVZEJM delivers >4× faster code shadowing than legacy parallel NOR flash, reducing boot time in Cortex-M7-based industrial controllers from 320ms to <75ms. This capability is validated in Winbond Application Note AN2019-03 for XIP-optimized drivers.
W25Q32JVZEJM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-WDFN Exposed Pad
- 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-WSON (8x6)
W25Q32JVZEJM FAQ
1.How can I place an order for W25Q32JVZEJM through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q32JVZEJM 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 W25Q32JVZEJM reliable?
The price and inventory of W25Q32JVZEJM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q32JVZEJM is usually 5 days.
3.What payment methods are accepted for W25Q32JVZEJM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q32JVZEJM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q32JVZEJM?
W25Q32JVZEJM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q32JVZEJM 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 W25Q32JVZEJM?
For technical support, including W25Q32JVZEJM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q32JVZEJM requirements.
6.How does Aetrix verify that W25Q32JVZEJM is sourced from the original manufacturer or authorized distributors?
All W25Q32JVZEJM 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 W25Q32JVZEJM meets industry standards.
7.What is the process for return or replacement of W25Q32JVZEJM?
All W25Q32JVZEJM units undergo pre-shipment inspection (PSI). If there is an issue with W25Q32JVZEJM, 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 W25Q32JVZEJM part is unused and in its original packaging.
Return procedure for W25Q32JVZEJM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q32JVZEJM Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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