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Winbond Electronics Corporation W25Q128JVEIM
- Part No.:
- W25Q128JVEIM
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
W25Q128JVEIM.pdf
- Description:
- IC FLASH 128MBIT SPI/QUAD 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:4,702
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Product details
Overview
W25Q128JVEIM from Winbond is a 128M-bit (16MB) serial NOR flash memory IC supporting Dual/Quad SPI, QPI, and DTR read modes, operating from 2.7V to 3.6V with 133MHz max clock frequency and -40°C to +105°C industrial-plus temperature range. It features uniform 4KB sectors (4,096 total), 64KB blocks (256 total), 256-byte programmable pages, and hardware write protection via /WP and /HOLD pins - used for code storage, XIP boot, and firmware updates in embedded controllers.
For engineers reviewing the W25Q128JVEIM datasheet, W25Q128JVEIM pinout, W25Q128JVEIM application, or W25Q128JVEIM equivalent, key selection considerations include Quad Enable (QE) bit configuration, /RESET pin availability per package, DTR timing compliance, sector lock granularity, and SFDP register support for auto-configuration in modern bootloaders.
Technical Context
The W25Q128JVEIM implements a command-driven SPI/QPI interface with volatile/non-volatile status registers controlling erase/program protection, quad enable, driver strength, and /HOLD or /RESET pin function mapping. Its architecture supports true execute-in-place (XIP) via Continuous Read Mode with as few as 8 clocks overhead for address setup.
It integrates three 256-byte security registers with OTP locks, 64-bit unique ID, JEDEC-compliant manufacturer/device ID, and SFDP (Serial Flash Discoverable Parameters) register for runtime configuration discovery. Erase/program suspend/resume enables concurrent background operations without halting host access.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 128 M-bit (16 MB), organized as 65,536 × 256-byte pages |
| Operating Voltage | 2.7 V to 3.6 V - compatible with 3.3 V logic systems without level shifting |
| Max Clock Frequency | 133 MHz (SPI), enabling 532 MB/s effective Quad I/O throughput with DTR |
| Erase Granularity | 4 KB sectors (4,096), 32 KB blocks (128), 64 KB blocks (256), full chip - supports fine-grained firmware partitioning |
| Endurance & Retention | 100,000 program/erase cycles per sector; >20 years data retention at +85°C |
| Temperature Range | -40°C to +105°C - qualified for industrial-plus applications including automotive infotainment and motor control |
| Interface Modes | Standard SPI, Dual SPI, Quad SPI, QPI, and DTR variants - selectable via instruction set and QE bit |
Pinout & Package
W25Q128JVEIM uses an 8-pin WSON 8x6-mm package (Package Code E), with exposed pad for thermal dissipation. Pin functions are shared across SPI modes: IO0–IO3 serve as DI/DO/WP/HOLD in standard/dual mode, and as bidirectional data lines in quad mode when QE=1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS | Chip Select Input | Active-low enable; places DO/IO pins in high-impedance state when deasserted - essential for multi-device SPI bus sharing |
| DO (IO1) | Data Output / Bidirectional I/O | Unidirectional output in standard SPI; bidirectional in dual/quad modes - requires QE=1 to activate quad functionality |
| /WP (IO2) | Write Protect Input / Bidirectional I/O | Hardware lock for status register writes; repurposed as IO2 in quad mode - disables hardware WP when QE=1 |
| GND | Ground Reference | Signal and power return path; must be low-inductance for stable DTR timing and noise immunity |
| DI (IO0) | Data Input / Bidirectional I/O | Unidirectional input in standard SPI; bidirectional in dual/quad modes - primary address/instruction entry point |
| CLK | Serial Clock Input | Edge-triggered timing reference; supports Mode 0 and Mode 3; critical for DTR setup/hold compliance |
| /HOLD (IO3) | Hold Input / Bidirectional I/O | Pauses ongoing read/write without deselecting device; repurposed as IO3 in quad mode - enables bus arbitration |
| VCC | Power Supply | Single 2.7–3.6 V supply; decoupling capacitor required near pin for transient current during page program |
Key Features
| Feature | Design Value |
|---|---|
| Quad Peripheral Interface (QPI) | Reduces instruction overhead by encoding commands in 4-bit nibbles - cuts command latency vs. standard SPI by ~75% |
| DTR (Double Transfer Rate) Read | Transfers data on both CLK edges - doubles effective bandwidth without increasing clock frequency or signal count |
| Continuous Read with Wrap | Supports 8/16/32/64-byte burst wrap - eliminates address retransmission for sequential access, enabling true XIP execution |
| Security Registers & Unique ID | Three 256-byte OTP-lockable security registers plus 64-bit factory-programmed UID - supports secure boot key storage and device authentication |
| Erase/Program Suspend & Resume | Allows host to pause background erase/program and service urgent reads - prevents timeout failures in real-time systems |
Applications
| Industrial PLC Firmware Storage | Automotive Infotainment Boot Memory |
|---|---|
|
Use Scenario: Storing and executing boot firmware and configuration parameters in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Primary non-volatile code storage with XIP capability, interfacing directly to ARM Cortex-M7 microcontroller via Quad SPI at 104 MHz. Use Value: 4KB sector granularity enables independent update of safety-critical firmware partitions without erasing operational logic; 105°C rating ensures reliability in enclosed control cabinets. |
Use Scenario: Hosting boot loader, OS kernel, and UI assets in head-unit systems requiring fast startup and over-the-air (OTA) update resilience. IC Role / Device Role / Timing Role: High-bandwidth flash memory mapped into processor address space using QPI mode for sub-100ms cold boot. Use Value: DTR read mode achieves 532 MB/s effective throughput - reduces boot time by 35% vs. standard SPI; SFDP register enables automatic driver initialization. |
| Medical Imaging Device Configuration | Network Router Firmware Image |
|
Use Scenario: Storing calibration tables, sensor profiles, and regulatory-compliant diagnostic logs in portable ultrasound and MRI subsystems. IC Role / Device Role / Timing Role: Secure parameter storage with hardware write protection (/WP pin) and individual sector lock bits for HIPAA-compliant data isolation. Use Value: Three OTP-lockable 256-byte security registers store cryptographic keys; 20-year data retention meets FDA long-term device lifecycle requirements. |
Use Scenario: Holding dual firmware images (active/backup) and packet forwarding tables in enterprise-grade Layer 3 switches and SD-WAN appliances. IC Role / Device Role / Timing Role: Dual-image storage with atomic swap capability using sector-level erase control and status register BP bits. Use Value: 100K endurance cycles allow >500 field firmware upgrades over product lifetime; /HOLD pin enables safe image switching during traffic bursts. |
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 |
|---|---|---|---|
| MX25L12833FZC-10G | 128M-bit, 104 MHz max clock, no DTR support, 3.3 V only, -40°C to +85°C | Lacks DTR and QPI modes; lower bandwidth limits XIP performance in high-speed processors | Choose when cost sensitivity outweighs bandwidth needs and industrial-plus temp is not required. |
| S25FL128SAGMFI000 | 128M-bit, 133 MHz, supports DTR but no QPI; Cypress (Infineon) portfolio, 2.7–3.6 V, -40°C to +105°C | Missing QPI reduces instruction efficiency; different SFDP layout may require bootloader driver changes | Prefer when existing design uses Cypress ecosystem tools or requires legacy compatibility over QPI optimization. |
Compared with MX25L12833FZC-10G and S25FL128SAGMFI000, W25Q128JVEIM uniquely combines DTR, QPI, and industrial-plus temperature in a single 8-pin WSON package - delivering highest effective bandwidth and broadest feature parity for next-generation embedded boot architectures.
Availability
W25Q128JVEIM is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive infotainment boot memory, medical imaging configuration, network router firmware image, and secure IoT edge device provisioning requiring stable component supply across extended temperature and long-lifecycle programs.
Supply support for W25Q128JVEIM 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, RAM, and mobile DRAM, serving industrial, automotive, and consumer markets since 1987.
The W25Q series targets high-performance embedded systems requiring reliable, feature-rich serial NOR flash - designed specifically for XIP-capable microcontrollers, OTA-updatable devices, and safety-critical firmware storage.
FAQ
What is the package type and footprint of W25Q128JVEIM?
W25Q128JVEIM uses an 8-pin WSON package measuring 8 mm × 6 mm with an exposed thermal pad (Package Code E). It is pin-compatible with other W25Q128JV variants in the same footprint, including W25Q128JVSIM and W25Q128JVPIM, and requires standard reflow profile for lead-free assembly. The package supports hand-soldering with appropriate thermal relief design.
Does W25Q128JVEIM support hardware reset, and how is it implemented?
W25Q128JVEIM does not include a dedicated /RESET pin in its 8-pin WSON package. Instead, reset functionality is implemented via software command (66h + 99h) or by configuring the /HOLD pin as /RESET using the HOLD/RST bit in Status Register-3 - but this requires QE=0 and is only available in standard/dual SPI mode. Hardware reset is natively supported only in 16-pin SOIC and TFBGA packages.
How is Quad SPI mode enabled on W25Q128JVEIM?
Quad SPI mode on W25Q128JVEIM is enabled by setting the Quad Enable (QE) bit in Status Register-2 (bit 1). This is done via Write Status Register-2 (31h) instruction after issuing Write Enable (06h). When QE=1, pins /WP and /HOLD become IO2 and IO3 respectively, enabling four-line bidirectional data transfer. The change persists across power cycles if written to non-volatile bits.
What is the purpose and behavior of the SFDP register in W25Q128JVEIM?
The SFDP (Serial Flash Discoverable Parameters) register in W25Q128JVEIM (accessed via instruction 5Ah) provides standardized, vendor-agnostic configuration data including erase block sizes, timing parameters, and supported instruction sets. It allows boot ROMs and flash translators to auto-detect and configure the device without hard-coded assumptions - critical for scalable firmware across multiple Winbond flash variants.
Can W25Q128JVEIM be used for secure key storage, and what features support this?
Yes, W25Q128JVEIM supports secure key storage via three dedicated 256-byte Security Registers (SR1–SR3), each protected by one-time-programmable (OTP) lock bits (LB1–LB3). Once locked, contents cannot be read or modified. Combined with 64-bit unique ID and hardware write protection via /WP pin and status register BP bits, it enables tamper-resistant storage for cryptographic keys, certificates, and device identity in certified embedded systems.
W25Q128JVEIM 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:
- 128Mbit
- Memory Organization:
- 16M x 8
- Memory Interface:
- SPI - Quad I/O, QPI, DTR
- 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:
- Surface Mount
- Supplier Device Package:
- 8-WSON (8x6)
W25Q128JVEIM FAQ
1.How can I place an order for W25Q128JVEIM through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q128JVEIM 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 W25Q128JVEIM reliable?
The price and inventory of W25Q128JVEIM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q128JVEIM is usually 5 days.
3.What payment methods are accepted for W25Q128JVEIM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q128JVEIM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q128JVEIM?
W25Q128JVEIM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q128JVEIM 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 W25Q128JVEIM?
For technical support, including W25Q128JVEIM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q128JVEIM requirements.
6.How does Aetrix verify that W25Q128JVEIM is sourced from the original manufacturer or authorized distributors?
All W25Q128JVEIM 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 W25Q128JVEIM meets industry standards.
7.What is the process for return or replacement of W25Q128JVEIM?
All W25Q128JVEIM units undergo pre-shipment inspection (PSI). If there is an issue with W25Q128JVEIM, 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 W25Q128JVEIM part is unused and in its original packaging.
Return procedure for W25Q128JVEIM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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