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Winbond Electronics Corporation W25Q128FVEIF
- Part No.:
- W25Q128FVEIF
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
W25Q128FVEIF.pdf
- Description:
- IC FLASH 128MBIT SPI/QUAD 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,501
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Product details
Overview
W25Q128FVEIF from Winbond is a 128M-bit (16MB) serial NOR flash memory supporting Standard/Dual/Quad SPI and QPI interfaces, operating at 2.7–3.6V with 104MHz max clock, 4KB uniform sectors, and hardware write protection via /WP and /HOLD pins - used for code storage, XIP boot, firmware updates, and parameter logging in embedded microcontrollers.
For engineers reviewing the W25Q128FVEIF datasheet, W25Q128FVEIF pinout, W25Q128FVEIF application, or W25Q128FVEIF equivalent, key selection criteria include Quad I/O enable (QE bit), sector-erase flexibility (4KB/32KB/64KB), JEDEC ID/SFDP register support, and compatibility with SPI-based boot loaders in resource-constrained MCU systems.
Technical Context
The W25Q128FVEIF implements a flexible SPI-compatible command set with volatile/non-volatile status registers controlling erase/write protection, QE bit enabling Quad I/O mode, and HOLD/RESET dual-function pin mapping dependent on QE state. It supports true execute-in-place (XIP) via Continuous Read Mode with ≤8-clock instruction overhead.
Its architecture includes 65,536 × 256-byte pages, 4,096 erasable 4KB sectors, and three 256-byte security registers with OTP locks. QPI mode reduces instruction overhead by using 4-bit-wide command/address/data transfers synchronized to CLK, achieving up to 416MHz effective throughput.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 128 M-bit (16 MB) - sufficient for full MCU firmware images and persistent configuration data. |
| Interface Modes | Standard SPI, Dual SPI, Quad SPI, QPI - enables scalable bandwidth from 104MHz single-line to 416MHz quad-equivalent. |
| Operating Voltage | 2.7 V to 3.6 V - compatible with 3.3V logic families and low-power embedded systems. |
| Erase Granularity | 4 KB sector / 32 KB block / 64 KB block / chip - allows fine-grained firmware patching without full reflash. |
| Endurance & Retention | 100,000 program/erase cycles, 20-year data retention - suitable for field-upgradable industrial firmware. |
| Security Features | 64-bit unique ID, SFDP register, three 256-byte OTP-lockable security registers - supports secure boot and device authentication. |
| Temperature Range | −40°C to +85°C - qualified for industrial-grade operation without derating. |
Pinout & Package
W25Q128FVEIF is supplied in an 8-pin WSON 6×5-mm package (Package Code P), with exposed pad for thermal performance and space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS | Chip Select Input | Active-low enable: high = device deselected (high-Z outputs, standby current); low = active communication window. |
| DO (IO1) | Data Output / I/O1 | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad SPI - carries read data or address bits. |
| /WP (IO2) | Write Protect Input / I/O2 | Hardware lock for status register writes when QE=0; repurposed as IO2 in Quad SPI mode. |
| GND | Ground Reference | Signal and power return path; must be low-impedance for stable SPI timing and noise immunity. |
| DI (IO0) | Data Input / I/O0 | Unidirectional input in Standard SPI; bidirectional I/O in Dual/Quad SPI - accepts commands, addresses, and write data. |
| CLK | Serial Clock Input | Master-generated edge-triggered timing signal; controls all data sampling and latching phases. |
| /HOLD or /RESET (IO3) | Hold/Reset Input / I/O3 | Pauses ongoing SPI transaction when low (HOLD); resets internal state when pulsed (RESET); becomes IO3 in Quad mode. |
| VCC | Power Supply | 3.3V supply input; requires local 0.1 µF ceramic decoupling adjacent to pin for transient current handling. |
Key Features
| Feature | Design Value |
|---|---|
| Continuous Read Mode | Enables true XIP execution with only 8 clocks to initiate address transfer - eliminates instruction fetch latency in boot ROMs. |
| Quad Peripheral Interface (QPI) | Reduces command/address overhead via 4-bit parallel transfers - doubles effective bandwidth vs. standard SPI at same clock rate. |
| Erase/Program Suspend & Resume | Allows background operations (e.g., firmware update) to pause for high-priority interrupts - critical for real-time system responsiveness. |
| Individual Block/Sector Lock | Per-sector hardware write protection controlled by status register bits - prevents accidental overwrite of bootloader or calibration data. |
| JEDEC ID & SFDP Register | Standardized identification and configurable parameters (e.g., timing, voltage) - enables automatic driver initialization in Linux/Bare-Metal bootloaders. |
Applications
| Industrial PLC Firmware Storage | Automotive Infotainment Boot Memory |
|---|---|
Use Scenario: Storing and updating ladder logic firmware and I/O configuration tables in programmable logic controllers under temperature-cycled factory environments. IC Role / Device Role / Timing Role: Non-volatile code storage with XIP capability and 4KB sector erase - enables incremental firmware patches without full reflash downtime. Use Value: 100,000-cycle endurance and −40°C to +85°C rating ensure reliable field updates over 15+ years of continuous operation. | Use Scenario: Hosting boot code and UI assets for head-unit microcontrollers where fast startup and secure firmware validation are required. IC Role / Device Role / Timing Role: Primary boot memory accessed via QPI at 104MHz - delivers >50 MB/s sequential read for sub-500ms cold boot. Use Value: 64-bit unique ID and OTP-locked security registers support cryptographic signature verification during secure boot sequence. |
| Medical Device Parameter Logging | IoT Edge Node OTA Storage |
Use Scenario: Recording calibrated sensor offsets, usage logs, and audit trails in portable diagnostic equipment with battery-backed operation. IC Role / Device Role / Timing Role: Parameter storage with hardware write protection (/WP pin + BP bits) - prevents corruption during brown-out or reset events. Use Value: 4KB sector granularity allows isolated logging buffer management without disturbing application code stored elsewhere in array. | Use Scenario: Holding staged firmware images and rollback partitions for wireless-over-the-air updates in battery-powered smart sensors. IC Role / Device Role / Timing Role: Dual-bank storage partitioned across 4KB sectors - enables atomic swap after CRC-verified download and power-fail-safe programming. Use Value: Erase/program suspend/resume capability ensures OTA writes can yield to sensor sampling interrupts without data loss or timeout failure. |
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, 104MHz max, SOIC-8 package; lacks QPI mode and SFDP register; uses different status register layout. | No QPI support limits bandwidth scalability; no SFDP requires hardcoded driver timing parameters. | Select when QPI and dynamic parameter discovery are unnecessary and SOIC-8 footprint is mandatory. |
| S25FL128SAGMFI000 | 128M-bit, 80MHz max, TFBGA-24; includes HyperBus interface option and deeper security features (AES-128). | Lower max clock reduces XIP performance; HyperBus adds pin count and controller dependency. | Select when enhanced security or future HyperBus migration path is prioritized over SPI simplicity and peak bandwidth. |
Compared with MX25L12833FZC-10G and S25FL128SAGMFI000, the W25Q128FVEIF delivers superior SPI bandwidth via QPI, standardized SFDP auto-configuration, and broader package options - making it optimal for cost-sensitive, high-throughput embedded boot and firmware storage where SPI compatibility and field-upgrade reliability are primary requirements.
Availability
W25Q128FVEIF is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive infotainment boot memory, and medical device parameter logging requiring stable component supply across multi-year production cycles.
Supply support for W25Q128FVEIF 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 targets high-performance, low-power serial NOR flash applications including MCU boot code storage, firmware updates, and secure parameter retention - emphasizing SPI protocol flexibility, sector-level protection, and industrial temperature reliability.
FAQ
What interface protocols does the W25Q128FVEIF support?
The W25Q128FVEIF supports Standard SPI, Dual SPI, Quad SPI, and Quad Peripheral Interface (QPI). QPI mode requires setting the Quad Enable (QE) bit in Status Register-2 and enables 4-bit command/address/data transfers, achieving up to 416MHz effective throughput. All modes operate with the same physical pins, with /WP and /HOLD repurposed as IO2 and IO3 in Quad/QPI configurations.
Does the W25Q128FVEIF support execute-in-place (XIP) operation?
Yes, the W25Q128FVEIF supports true XIP via its Continuous Read Mode, which requires only 8 clock cycles to initiate memory access after command issuance. This low instruction overhead enables direct code execution from flash without copying to RAM, validated in MCU boot ROM implementations using Quad SPI or QPI interfaces at up to 104MHz clock rates.
How is hardware write protection implemented on the W25Q128FVEIF?
Hardware write protection on the W25Q128FVEIF uses the /WP pin (active-low) in conjunction with non-volatile status register bits (BP2–BP0, TB, SEC, CMP) to protect sectors or blocks from accidental programming or erasure. When /WP is asserted low and status register protection is enabled, writes to protected regions are blocked regardless of software commands - a critical safeguard for bootloader or calibration data stored in designated 4KB sectors.
What package type is used for the W25Q128FVEIF part number?
The W25Q128FVEIF uses an 8-pin WSON 6×5-mm package (Package Code P) with an exposed thermal pad. This compact, surface-mount package supports automated assembly and provides improved thermal dissipation compared to SOIC variants, making it ideal for space-constrained IoT and portable medical devices where board area is at a premium.
Can the W25Q128FVEIF be used in automotive applications?
The W25Q128FVEIF is rated for −40°C to +85°C operation and meets industrial reliability standards, but it is not AEC-Q100 qualified. For automotive infotainment or body control modules where qualification is not mandated, the W25Q128FVEIF is widely deployed as boot memory due to its QPI bandwidth, 4KB sector erase, and security registers - however, mission-critical ADAS systems require AEC-Q100-certified alternatives.
W25Q128FVEIF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- 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
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 50µs, 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)
W25Q128FVEIF FAQ
1.How can I place an order for W25Q128FVEIF through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q128FVEIF 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 W25Q128FVEIF reliable?
The price and inventory of W25Q128FVEIF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q128FVEIF is usually 5 days.
3.What payment methods are accepted for W25Q128FVEIF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q128FVEIF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q128FVEIF?
W25Q128FVEIF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q128FVEIF 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 W25Q128FVEIF?
For technical support, including W25Q128FVEIF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q128FVEIF requirements.
6.How does Aetrix verify that W25Q128FVEIF is sourced from the original manufacturer or authorized distributors?
All W25Q128FVEIF 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 W25Q128FVEIF meets industry standards.
7.What is the process for return or replacement of W25Q128FVEIF?
All W25Q128FVEIF units undergo pre-shipment inspection (PSI). If there is an issue with W25Q128FVEIF, 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 W25Q128FVEIF part is unused and in its original packaging.
Return procedure for W25Q128FVEIF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q128FVEIF Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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AT24C02C-SSHM-T
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24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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