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Winbond Electronics Corporation W25Q80EWSSIG TR
- Part No.:
- W25Q80EWSSIG TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
W25Q80EWSSIG TR.pdf
- Description:
- IC FLASH 8MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,061
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Product details
Overview
W25Q80EWSSIG TR from Winbond is an 8 M-bit (1 MB) serial NOR flash memory IC designed for code storage and execution in space-constrained embedded systems. It supports Standard/Dual/Quad SPI and QPI interfaces, operates from 1.65V to 1.95V, delivers up to 104 MHz clock rates, and features 4 KB uniform sectors, 100K program-erase cycles, and 20-year data retention - deployed in microcontroller boot code storage and firmware update storage.
For engineers reviewing the W25Q80EWSSIG TR datasheet, W25Q80EWSSIG TR pinout, W25Q80EWSSIG TR application, or W25Q80EWSSIG TR equivalent, key selection considerations include voltage compatibility (1.65–1.95 V), Quad SPI/QPI enablement via Status Register-2 QE bit, hardware write protection using /WP and /HOLD pins, and SOIC-208-mil (SS) package footprint validation.
Technical Context
The W25Q80EWSSIG TR implements a flexible SPI command architecture supporting four operational modes: Standard SPI (DI/DO), Dual SPI (IO0/IO1), Quad SPI (IO0–IO3), and QPI (all four IOs for instruction + data). Mode switching requires explicit Enter QPI (38h) or Exit QPI (FFh) commands, and Quad/QPI operation depends on non-volatile QE bit = 1 in Status Register-2.
Its memory array comprises 4,096 × 256-byte pages organized into 256 × 4 KB sectors and 16 × 64 KB blocks. Erase/program suspend-resume capability enables concurrent background operations, while SFDP register (5Ah) provides discoverable timing and feature parameters for automated initialization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 M-bit (1,048,576 bytes) - sufficient for MCU boot code, firmware images, and configuration data in compact IoT edge nodes. |
| Supply Voltage | 1.65 V to 1.95 V - compatible with low-voltage SoCs and battery-powered applications without level-shifting. |
| Max Clock Frequency | 104 MHz (SPI), 208 MHz equiv. (Dual I/O), 416 MHz equiv. (Quad I/O) - enables >50 MB/s continuous read throughput for XIP execution. |
| Erase Granularity | 4 KB sector / 32 KB block / 64 KB block - allows fine-grained firmware partitioning and over-the-air update management. |
| Endurance & Retention | 100,000 program-erase cycles per sector; 20-year data retention at 85°C - meets industrial lifecycle requirements for field-deployed devices. |
| Interface Modes | Standard SPI, Dual SPI, Quad SPI, QPI - selectable via instruction set; QE bit in Status Register-2 controls Quad/QPI enablement. |
| Security Features | 64-bit unique serial number, 3×256-byte OTP-lockable security registers, software/hardware write protection with top/bottom/complement sector control. |
Pinout & Package
W25Q80EWSSIG TR is packaged in 8-pin SOIC 208-mil (package code SS), with pin 1 marked by notch or dot. This surface-mount package supports reflow soldering and fits standard 0.300" PCB footprints.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | /CS | Active-low chip select - must transition high→low after power-up before first instruction; enables device and activates I/O drivers. |
| 2 | DO (IO1) | Data output (Standard/Dual SPI) or bidirectional I/O1 (Dual/Quad/QPI) - carries read data or bidirectional command/address/data in multi-I/O modes. |
| 3 | /WP (IO2) | Hardware write protect input (Standard/Dual) or bidirectional I/O2 (Quad/QPI) - when QE=0, prevents status register writes; when QE=1, functions as data line. |
| 4 | GND | Ground reference - common return path for all internal circuitry and I/O signaling; must be low-impedance. |
| 5 | DI (IO0) | Data input (Standard SPI) or bidirectional I/O0 (Dual/Quad/QPI) - receives instructions, addresses, and program data; becomes bidirectional in extended modes. |
| 6 | CLK | Serial clock input - synchronous timing reference for all SPI/QPI transfers; supports Mode 0 and Mode 3 polarity/phase configurations. |
| 7 | /HOLD (IO3) | Hold input (Standard/Dual) or bidirectional I/O3 (Quad/QPI) - pauses ongoing read/write when active low; disabled when QE=1. |
| 8 | VCC | Power supply - supplies core logic and memory array; requires stable 1.65–1.95 V with local decoupling. |
Key Features
| Feature | Design Value |
|---|---|
| Quad Enable (QE) bit | Non-volatile Status Register-2 bit controlling /WP and /HOLD pin remapping to IO2/IO3 - essential for enabling Quad SPI and QPI modes without external logic. |
| Erase/Program Suspend | 75h/7Ah instructions allow pausing active erase or program operations to service higher-priority interrupts - critical for real-time firmware update handling. |
| SFDP Register | Read via 5Ah instruction - exposes JEDEC-standardized timing parameters, voltage ranges, and feature flags for automatic driver initialization across platforms. |
| Unique Serial Number | 64-bit factory-programmed identifier readable via 4Bh instruction - enables secure device authentication and firmware binding in certified deployments. |
| Security Registers | Three 256-byte OTP-lockable regions with independent volatile/non-volatile lock bits - supports secure key storage and tamper-resistant configuration data. |
Applications
| MCU Boot Code Storage | Firmware Over-the-Air (OTA) Updates |
|---|---|
|
Use Scenario: Storing primary bootloader and application firmware for ARM Cortex-M or RISC-V microcontrollers during cold start. IC Role / Device Role / Timing Role: Non-volatile code storage with XIP-capable Quad SPI interface enabling direct execution without RAM copy. Use Value: Reduces BOM cost and board area vs. parallel NOR; 104 MHz clock and 4 KB sectors allow fast, atomic firmware patching. |
Use Scenario: Hosting versioned firmware images in smart meters, industrial gateways, and medical edge devices receiving remote updates. IC Role / Device Role / Timing Role: Dual-bank capable storage (via sector-level erase control) enabling safe A/B firmware swapping with rollback support. Use Value: 100K endurance and 20-year retention ensure reliable field updates across 10+ years of product lifetime. |
| Secure Configuration Storage | Audio/Text Data Buffering |
|
Use Scenario: Holding calibrated sensor offsets, cryptographic keys, and regulatory compliance settings in automotive ADAS modules. IC Role / Device Role / Timing Role: Secure non-volatile storage leveraging OTP-lockable security registers and hardware write protection. Use Value: 64-bit unique ID and three independent security register banks prevent cloning and unauthorized parameter modification. |
Use Scenario: Caching voice prompts, multilingual UI strings, or waveform data in portable audio devices and home assistants. IC Role / Device Role / Timing Role: High-throughput serial data buffer supporting burst reads via Fast Read Quad I/O (EBh) instruction. Use Value: 416 MHz equivalent bandwidth enables <50 µs latency for 256-byte voice segment fetches, improving user response time. |
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 |
|---|---|---|---|
| MX25L8006EM1I-12G | Same density (8 M-bit), 2.7–3.6 V supply, no QPI mode, max 80 MHz SPI clock - lacks Quad SPI and QPI, no SFDP register. | Requires voltage translation for 1.8 V systems; unsuitable for XIP at >80 MHz or QPI-based host controllers. | Select only if operating at 3.3 V and host does not require QPI or SFDP auto-discovery. |
| S25FL008KAGMFI010 | 8 M-bit, 2.7–3.6 V, supports Quad SPI but no QPI; includes configurable dummy cycles and deeper power-down mode (<100 nA). | Higher voltage range limits use in ultra-low-power 1.8 V designs; lacks QPI instruction efficiency for XIP-critical applications. | Prefer for battery-powered applications needing nanoamp sleep current, provided voltage and interface constraints are met. |
Compared with MX25L8006EM1I-12G and S25FL008KAGMFI010, W25Q80EWSSIG TR uniquely supports 1.65–1.95 V operation, QPI mode for reduced instruction overhead, and JEDEC SFDP for plug-and-play driver initialization - making it optimal for modern 1.8 V SoC-based designs requiring high-speed XIP and secure firmware management.
Availability
W25Q80EWSSIG TR is available at Aetrix Electronics and suitable for MCU boot code storage, firmware OTA updates, and secure configuration storage requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for industrial and medical electronics.
Supply support for W25Q80EWSSIG 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, serial flash, and mobile DRAM solutions for consumer, industrial, and automotive markets.
The W25Q series targets embedded systems requiring high-speed, low-voltage serial NOR flash with advanced security and flexible interface options - optimized for code execution, firmware storage, and secure parameter retention.
FAQ
What voltage range does the W25Q80EWSSIG TR support, and why is this important for system design?
The W25Q80EWSSIG TR operates from 1.65 V to 1.95 V, making it compatible with modern 1.8 V core logic and SoCs without level-shifting circuitry. This eliminates external voltage translators, reduces BOM count, and improves power efficiency in battery-powered and space-constrained applications. Its tight voltage window also ensures stable timing margins at high clock rates up to 104 MHz.
How does the Quad Enable (QE) bit affect pin functionality on the W25Q80EWSSIG TR?
The QE bit in Status Register-2 determines whether pins 3 (/WP) and 7 (/HOLD) function as hardware controls or as I/O lines IO2 and IO3. When QE = 0 (default), /WP and /HOLD retain their protective roles; when QE = 1, they become bidirectional data lines required for Quad SPI and QPI operation. This remapping is non-volatile and persists across power cycles.
Can the W25Q80EWSSIG TR be used for execute-in-place (XIP) applications, and what interface modes support it?
Yes, the W25Q80EWSSIG TR supports XIP via Fast Read Quad I/O (EBh) and QPI modes, delivering up to 416 MHz equivalent bandwidth. These modes reduce instruction latency and enable deterministic code fetch timing - essential for real-time MCU applications where RAM loading is impractical. Standard SPI and Dual SPI are also XIP-capable but at lower throughput.
What security mechanisms does the W25Q80EWSSIG TR provide for firmware integrity and device authentication?
The W25Q80EWSSIG TR includes a 64-bit unique serial number (readable via 4Bh), three 256-byte OTP-lockable security registers, hardware write protection via /WP pin and status register bits (BP2–BP0, TB, SEC), and SFDP-based parameter discovery. These features collectively support secure boot verification, anti-cloning, and tamper-resistant configuration storage in regulated environments.
Is the W25Q80EWSSIG TR pin-compatible with other members of the Winbond W25Q family, such as the W25Q40 or W25Q16?
Yes, the W25Q80EWSSIG TR shares identical pinout, package dimensions, and interface protocol with W25Q40EW, W25Q16EW, and other W25Qx0EW variants in SOIC-208-mil (SS) packaging. This enables scalable memory sizing within the same PCB layout - allowing design reuse across product tiers while maintaining identical signal routing and firmware drivers.
W25Q80EWSSIG TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 8Mbit
- Memory Organization:
- 1M x 8
- Memory Interface:
- SPI - Quad I/O, QPI
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 3ms
- Access Time:
- -
- Voltage - Supply:
- 1.65V ~ 1.95V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
W25Q80EWSSIG TR FAQ
1.How can I place an order for W25Q80EWSSIG TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q80EWSSIG 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 W25Q80EWSSIG TR reliable?
The price and inventory of W25Q80EWSSIG TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q80EWSSIG TR is usually 5 days.
3.What payment methods are accepted for W25Q80EWSSIG TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q80EWSSIG TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q80EWSSIG TR?
W25Q80EWSSIG TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q80EWSSIG 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 W25Q80EWSSIG TR?
For technical support, including W25Q80EWSSIG TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q80EWSSIG TR requirements.
6.How does Aetrix verify that W25Q80EWSSIG TR is sourced from the original manufacturer or authorized distributors?
All W25Q80EWSSIG 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 W25Q80EWSSIG TR meets industry standards.
7.What is the process for return or replacement of W25Q80EWSSIG TR?
All W25Q80EWSSIG TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q80EWSSIG 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 W25Q80EWSSIG TR part is unused and in its original packaging.
Return procedure for W25Q80EWSSIG TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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