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Winbond Electronics Corporation W25Q128FWYIC TR
- Part No.:
- W25Q128FWYIC TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 32-UFBGA, WLCSP
- Datasheet:
-
W25Q128FWYIC TR.pdf
- Description:
- IC FLASH 128MBIT SPI 32WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,553
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Product details
Overview
W25Q128FWYIC TR from Winbond is a 1.8V, 128M-bit (16MB) serial NOR flash memory IC supporting Standard/Dual/Quad SPI and QPI interfaces, organized into 65,536 × 256-byte pages with 4KB uniform sector erase granularity, used for code storage, XIP execution, and firmware parameter retention in space-constrained embedded systems.
For engineers reviewing the W25Q128FWYIC TR datasheet, W25Q128FWYIC TR pinout, W25Q128FWYIC TR application, or W25Q128FWYIC TR equivalent, key selection criteria include its 104MHz SPI clock rating, 50MB/s continuous read throughput, quad-enable (QE) bit dependency for IO2/IO3 functionality, and dual-role /HOLD or /RESET pin behavior dependent on package and status register configuration.
Technical Context
The W25Q128FWYIC TR implements a multi-mode serial interface: Standard SPI uses DI/DO unidirectionally; Dual/Quad SPI repurpose /WP and /HOLD as bidirectional IO2/IO3 when the non-volatile Quad Enable (QE) bit in Status Register-2 is set; QPI mode enables 2-clock instruction cycles and full 4-line bidirectional data transfer. Its command set includes Fast Read Quad I/O (EBh), Word Read Quad I/O (E7h), and Octal Word Read Quad I/O (E3h).
Internal architecture features a 256-byte page buffer, SFDP register for discoverable parameters, three 256-byte one-time-programmable (OTP) security registers, and flexible protection schemes including top/bottom block lock, complement protection (CMP), and individual sector/block locking via 64-bit unique ID and volatile/non-volatile status bits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 128 M-bit (16 MB), organized as 65,536 × 256-byte programmable pages |
| Supply Voltage | 1.65 V to 1.95 V - enables low-power operation in battery-backed or energy-sensitive designs |
| Max SPI Clock | 104 MHz - supports up to 416 MB/s effective bandwidth in Quad I/O mode using Fast Read Quad I/O (EBh) |
| Erase Granularity | 4 KB sectors (4,096 total), 32 KB blocks (2,048), 64 KB blocks (256), and chip erase - allows fine-grained firmware update partitioning |
| Endurance & Retention | 100,000 program/erase cycles minimum; 20-year data retention at +85°C - suitable for field-upgradable industrial firmware |
| Operating Temp | –40°C to +85°C - qualified for extended industrial temperature range applications |
| Security Features | 64-bit unique ID, three 256-byte OTP security registers, JEDEC-standard SFDP, and configurable BP/TB/SEC/CMP protection bits |
Pinout & Package
W25Q128FWYIC TR is supplied in an 8-pin WSON 6×5-mm package (Package Code P), with exposed pad for thermal dissipation and no internal pull-ups on /CS, /WP, or /HOLD pins - external biasing required per system-level noise and timing constraints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable; must transition high→low after power-up before first instruction; high-impedance DO during deselect |
| 2 DO (IO1) | Data Output / Bidirectional I/O | Unidirectional output in Standard SPI; bidirectional I/O1 in Dual/Quad SPI when QE=1 |
| 3 /WP (IO2) | Write Protect Input / Bidirectional I/O | Hardware write-protection enable; becomes IO2 in Quad SPI only when QE=1; inactive if QE=1 and not configured |
| 4 GND | Ground Reference | Primary return path for VCC and all I/O signals; requires low-impedance PCB connection to minimize noise coupling |
| 5 DI (IO0) | Data Input / Bidirectional I/O | Unidirectional input in Standard SPI; bidirectional I/O0 in Dual/Quad SPI when QE=1 |
| 6 CLK | Serial Clock Input | Rising-edge sampled for input, falling-edge sampled for output; timing critical for >104MHz operation |
| 7 /HOLD or /RESET (IO3) | Hold/Reset Input / Bidirectional I/O | Pauses ongoing SPI transaction when active low; functions as /RESET only in SOIC-16 or when QE=0 in 8-pin packages |
| 8 VCC | Power Supply | 1.65–1.95 V supply; decoupling capacitor (≥1 µF) required within 5 mm of pin per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Quad Peripheral Interface (QPI) | Reduces instruction overhead to 2 clocks per command, enabling true XIP with minimal CPU wait states |
| Continuous Read Mode | Supports 8/16/32/64-byte wrap with only 8 clocks to address memory - eliminates address retransmission latency |
| Erase/Program Suspend & Resume | Allows background interrupt handling during long erase cycles (e.g., 64KB block erase ~200 ms) without data loss |
| Volatile & Non-Volatile Status Control | BP/TB/SEC/CMP bits can be written either temporarily (volatile) or permanently (non-volatile), enabling dynamic vs. factory-set protection |
| Security Register Locking | Three 256-byte OTP-locked registers provide tamper-resistant storage for keys, calibration data, or device-specific credentials |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Image |
|---|---|
|
Use Scenario: Storing boot firmware and runtime configuration for programmable logic controllers operating in harsh environments with frequent power cycling. IC Role / Device Role / Timing Role: Primary non-volatile code storage with XIP capability, delivering deterministic <100 ns access latency via Fast Read Quad I/O (EBh) instructions. Use Value: 4KB sector erase enables atomic firmware patching without disrupting operational logic; 20-year retention ensures reliability across 15+ year product lifecycles. |
Use Scenario: Holding boot code and sensor calibration tables for automotive camera or radar modules requiring ASIL-B–compatible firmware integrity. IC Role / Device Role / Timing Role: Secure boot image repository with 64-bit unique ID and OTP security registers for cryptographic signature verification. Use Value: Individual sector locking (via 36h/39h commands) isolates safety-critical boot code from field-updatable application layers, meeting ISO 26262 partitioning requirements. |
| Medical IoT Sensor Node | Consumer Smart Home Hub |
|
Use Scenario: Retaining patient calibration profiles and sensor history logs in portable diagnostic devices powered by coin-cell batteries. IC Role / Device Role / Timing Role: Low-power parameter storage with <1 µA power-down current and hardware /WP-based write protection against accidental overwrites. Use Value: 1.65–1.95 V operation matches typical Li-ion/Li-SOCl₂ battery discharge curves; 100K-cycle endurance supports daily recalibration over 10+ years. |
Use Scenario: Hosting OTA update images and localized UI assets in voice-controlled smart speakers with strict BOM cost targets. IC Role / Device Role / Timing Role: High-throughput code/data storage leveraging 50 MB/s continuous read to minimize update installation time. Use Value: WSON 6×5-mm footprint saves >40% board area vs. SOIC-16; QPI mode reduces host MCU SPI peripheral load during large binary transfers. |
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 |
|---|---|---|---|
| MX25L12835FZC-10G | 3V supply (2.7–3.6 V); same 128M-bit density, 104MHz clock, but lacks QPI mode and OTP security registers | Requires level-shifting in 1.8V systems; unsuitable for secure boot or mixed-voltage designs needing QPI efficiency | Select only if existing 3V infrastructure prohibits voltage translation and QPI/XIP is unnecessary |
| S25FL128SAGMFI000 | Cypress (Infineon) part with 1.8V operation, 133MHz max clock, HyperBus interface option, and 10-year retention (vs. 20-year) | HyperBus support enables higher bandwidth in pin-limited layouts; lower retention limits suitability for long-deployment medical devices | Prefer when HyperBus compatibility or marginally higher clock speed justifies trade-off in data longevity assurance |
Compared with W25Q128FWYIC TR, MX25L12835FZC-10G requires external level shifters in 1.8V systems and omits QPI and OTP security - limiting XIP efficiency and secure credential storage; S25FL128SAGMFI000 offers HyperBus and higher clock rate but trades 10 years off guaranteed data retention, affecting long-life deployment confidence.
Availability
W25Q128FWYIC TR is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot image hosting, and medical IoT sensor node parameter retention requiring stable component supply across multi-year production programs.
Supply support for W25Q128FWYIC TR 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 to deliver high-speed, low-voltage serial NOR flash with enhanced security and flexible erase architecture for code execution and firmware storage in resource-constrained edge devices.
FAQ
What is the function of the /HOLD pin on the W25Q128FWYIC TR, and how does it interact with the QE bit?
The /HOLD pin on the W25Q128FWYIC TR pauses ongoing SPI transactions when asserted low while /CS is active, placing DO in high-impedance state and ignoring DI/CLK inputs. Its functionality is disabled in Quad SPI mode because the pin becomes IO3 when the non-volatile Quad Enable (QE) bit in Status Register-2 is set to 1 - a hardware-mandated reassignment confirmed in Section 4.4 and Figure 1a–c of the datasheet. In W25Q128FWYIC TR's 8-pin WSON package, /HOLD is only available when QE=0.
Does the W25Q128FWYIC TR support execute-in-place (XIP) operation, and what conditions must be met?
Yes, the W25Q128FWYIC TR supports true XIP operation via Continuous Read Mode and QPI interface. To enable XIP, the host must issue Fast Read Quad I/O (EBh) or Word Read Quad I/O (E7h) commands with the QE bit set, configure appropriate drive strength (DRV1/DRV0 bits), and ensure stable 1.65–1.95 V supply and controlled impedance routing. The 8-clock addressing overhead and 416 MB/s effective bandwidth allow deterministic instruction fetches without local RAM buffering - a capability verified in Section 2 and Figure 3 of the datasheet.
How many unique security registers does the W25Q128FWYIC TR include, and what protection mechanisms apply?
The W25Q128FWYIC TR includes three 256-byte security registers (SR1–SR3), each protected by one-time-programmable (OTP) lock bits (LB1–LB3) located in Status Register-3. Once an LB bit is programmed, the corresponding register becomes permanently read-only. These registers are separate from main array memory and support independent locking - enabling secure storage of cryptographic keys, calibration coefficients, or device-unique credentials without risk of overwrite. This structure is explicitly defined in Sections 2, 7.1.9, and 8.2.32–8.2.33.
What is the maximum clock frequency supported by the W25Q128FWYIC TR in Quad SPI mode, and how is bandwidth calculated?
The W25Q128FWYIC TR supports up to 104 MHz on the SPI clock (CLK) pin in Quad SPI mode. Bandwidth is calculated as clock frequency × data lines × transfers per cycle: 104 MHz × 4 lines × 1 (single-data-rate) = 416 MB/s effective throughput, achievable using Fast Read Quad I/O (EBh) or Octal Word Read Quad I/O (E3h) instructions. This value is specified in Section 2 ("Highest Performance Serial Flash") and confirmed in AC Electrical Characteristics Table 9.6, where tV (data valid window) and tQH (output hold time) are characterized at 104 MHz.
Can the W25Q128FWYIC TR be used in a 3.3V system, and what design considerations apply?
No, the W25Q128FWYIC TR is rated exclusively for 1.65–1.95 V operation and is not 3.3V-tolerant. Direct connection to a 3.3V SPI bus will damage the device. System integration requires level translation on all signals (/CS, CLK, DI, DO, /WP, /HOLD) or use of a 1.8V-compatible host controller. This limitation is stated in Section 9.2 (Operating Ranges) and Absolute Maximum Ratings Table 9.1, where VCC max is 2.0 V - exceeding this violates absolute ratings and voids reliability guarantees.
W25Q128FWYIC TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 32-UFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 60µs, 5ms
- Access Time:
- -
- Voltage - Supply:
- 1.65V ~ 1.95V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-WLCSP (3.98x3.19)
W25Q128FWYIC TR FAQ
1.How can I place an order for W25Q128FWYIC TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q128FWYIC TR 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 W25Q128FWYIC TR reliable?
The price and inventory of W25Q128FWYIC TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q128FWYIC TR is usually 5 days.
3.What payment methods are accepted for W25Q128FWYIC TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q128FWYIC TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q128FWYIC TR?
W25Q128FWYIC TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q128FWYIC TR 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 W25Q128FWYIC TR?
For technical support, including W25Q128FWYIC TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q128FWYIC TR requirements.
6.How does Aetrix verify that W25Q128FWYIC TR is sourced from the original manufacturer or authorized distributors?
All W25Q128FWYIC TR 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 W25Q128FWYIC TR meets industry standards.
7.What is the process for return or replacement of W25Q128FWYIC TR?
All W25Q128FWYIC TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q128FWYIC TR, 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 W25Q128FWYIC TR part is unused and in its original packaging.
Return procedure for W25Q128FWYIC TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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