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Winbond Electronics Corporation W25X80VDAIZ
- Part No.:
- W25X80VDAIZ
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
W25X80VDAIZ.pdf
- Description:
- IC FLASH 8MBIT SPI 75MHZ 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,669
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Product details
Overview
W25X80VDAIZ from Winbond is an 8M-bit (1MB) serial Flash memory IC designed for embedded code storage and data logging in space-constrained systems. It features uniform 4KB sectors, dual-output SPI interface supporting up to 75MHz clock (150Mbps effective), and operates from a single 2.7–3.6V supply with 5mA active and 1µA power-down current. It is commonly used in firmware boot storage for microcontrollers and parameter retention in industrial controllers.
For engineers reviewing the W25X80VDAIZ datasheet, W25X80VDAIZ pinout, W25X80VDAIZ application, or W25X80VDAIZ equivalent, key selection considerations include sector granularity (4KB), dual-output read performance, hardware/software write protection via /WP and status register, and compatibility with standard and Mode 0/3 SPI controllers.
Technical Context
The W25X80VDAIZ implements a standard SPI interface with support for both Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1), enabling interoperability with diverse host controllers. Its dual-output Fast Read (3Bh) instruction repurposes the DIO pin as a second data output during reads, doubling throughput versus single-output SPI.
Internal architecture includes a 4096-page (256-byte/page) array organized into 256 erasable 4KB sectors and 16 erasable 64KB blocks. Write protection is implemented via non-volatile status register bits (BP2–BP0, TB, SRP) combined with hardware /WP and /HOLD pins for flexible, layered data integrity control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 M-bit (1,048,576 bytes), organized as 4096 × 256-byte pages |
| Sector Size | Uniform 4KB sectors (256 sectors total); enables fine-grained firmware/data partitioning |
| SPI Clock Max | 75 MHz; supports Fast Read Dual Output at 150 Mbps effective transfer rate |
| Supply Voltage | 2.7 V to 3.6 V; compatible with 3.3V logic systems without level shifting |
| Active Current | 5 mA typical; low power consumption suitable for battery-backed or energy-sensitive designs |
| Data Retention | 20 years minimum; ensures long-term reliability of stored firmware and calibration data |
| Erase/Write Cycles | 100,000 minimum per sector; supports frequent field updates in telemetry or configuration applications |
Pinout & Package
W25X80VDAIZ is packaged in an 8-pin PDIP 300-mil (package code DA), with industry-standard through-hole mounting and 2.54 mm pitch. Pin functions are electrically identical across SOIC, PDIP, and WSON variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable; places device in standby (1µA) when high; must track VCC at power-up |
| 2 DO | Serial Data Output | Primary output for standard SPI reads; outputs on falling CLK edge; high-Z when /CS high or /HOLD active |
| 3 /WP | Hardware Write Protect | Active-low pin that locks status register writes when SRP=1; enables board-level protection independent of software |
| 4 GND | Ground Reference | Common return path for VCC and all I/O; requires low-impedance connection to minimize noise in SPI signaling |
| 5 DIO | Serial Data I/O | Input for commands/addresses/data; becomes secondary output during Fast Read Dual Output (3Bh) |
| 6 CLK | Serial Clock Input | Master-generated timing signal; data latched on rising edge (input), shifted out on falling edge (output) |
| 7 /HOLD | Operation Pause Control | Active-low pause signal; suspends ongoing SPI transaction without resetting internal state; useful in multi-device bus sharing |
| 8 VCC | Power Supply | 2.7–3.6V single supply; decoupling capacitor (0.1 µF) required near pin for stable read/write timing |
Key Features
| Feature | Design Value |
|---|---|
| Dual Output SPI (3Bh) | Enables 150 Mbps read throughput by using DIO as second data line-critical for fast code shadowing at boot |
| 4KB Uniform Sectors | Allows independent erase of firmware partitions, configuration banks, or log buffers without disturbing adjacent data |
| Hardware + Software Write Protection | Combines /WP pin control with programmable BP/TB/SRP bits to protect boot code, calibration tables, or security keys |
| Page Program (≤2 ms) | Supports up to 256 bytes per write; enables efficient small-data updates (e.g., sensor logs, user settings) without full-sector erase |
| HOLD Function | Preserves active SPI transaction state during priority interrupts-eliminates need for re-initialization or buffer management in RTOS |
Applications
| Firmware Boot Storage | Industrial Parameter Logging |
|---|---|
|
Use Scenario: Storing bootloader and application firmware for ARM Cortex-M or RISC-V microcontrollers requiring fast, reliable code execution on power-up. IC Role / Device Role / Timing Role: Non-volatile code storage with dual-output Fast Read enabling sub-100ms RAM loading for deterministic boot timing. Use Value: Eliminates external parallel Flash; reduces PCB area and BOM count while maintaining boot performance comparable to 8-bit parallel devices. |
Use Scenario: Recording sensor calibration offsets, maintenance timestamps, and fault history in programmable logic controllers (PLCs) and motor drives. IC Role / Device Role / Timing Role: Persistent data logger with 4KB sector granularity allowing independent update of calibration tables without erasing operational logs. Use Value: Supports 100,000+ write cycles per sector-enabling daily calibration updates over 27 years of field operation. |
| Consumer Device Configuration | Medical Device Settings Retention |
|
Use Scenario: Storing user preferences, display brightness profiles, and network credentials in smart home hubs and audio equipment. IC Role / Device Role / Timing Role: Low-power configuration store accessed infrequently but requiring guaranteed data integrity across power cycles. Use Value: 1µA power-down current extends battery life in always-on devices; hardware /WP prevents accidental overwrite during firmware updates. |
Use Scenario: Retaining FDA-mandated device settings, usage counters, and audit trails in portable diagnostic instruments and infusion pumps. IC Role / Device Role / Timing Role: Certified data archive with 20-year retention and dual-layer write protection (SRP + /WP) meeting IEC 62304 safety requirements. Use Value: Status register memory protection allows locking critical configuration blocks while permitting updates to non-critical fields-reducing validation scope. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT25DF081A-SSH-T | 8M-bit SPI Flash with 4KB sectors; supports 85 MHz clock but lacks dual-output mode; uses different status register layout | Higher clock speed but lower effective read bandwidth; no Fast Read Dual Output instruction | Choose when maximum single-line SPI speed suffices and dual-output logic is not implemented in host firmware |
| MX25L8006EM1I-12G | 8M-bit SPI Flash with 4KB sectors; supports 104 MHz clock and dual-output mode; requires different /HOLD timing and JEDEC ID | Higher performance ceiling (208 Mbps) but tighter AC timing margins; broader industrial temp range (–40°C to +105°C) | Choose for extended temperature operation or when host design can accommodate faster timing and alternate instruction set |
Compared with W25X80VDAIZ, AT25DF081A-SSH-T offers higher clock frequency but no dual-output acceleration, resulting in lower real-world read throughput; MX25L8006EM1I-12G delivers higher bandwidth and extended temperature rating but demands stricter timing compliance and firmware adaptation.
Availability
W25X80VDAIZ is available at Aetrix Electronics and suitable for firmware boot storage, industrial parameter logging, and consumer device configuration requiring stable component supply and long-lifecycle support.
Supply support for W25X80VDAIZ 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 NOR Flash, PSRAM, and mobile DRAM.
The W25X series was designed specifically for cost-sensitive, space-constrained embedded systems needing reliable code storage and flexible data logging with minimal pin count and power budget.
FAQ
What is the memory organization of the W25X80VDAIZ?
The W25X80VDAIZ contains 8 M-bit (1,048,576 bytes) of Flash memory, organized into 4096 programmable pages of 256 bytes each, grouped into 256 uniform 4KB sectors and 16 erasable 64KB blocks. This structure enables precise erase granularity for firmware updates and data logging without affecting unrelated memory regions. The W25X80VDAIZ supports sector, block, and chip erase operations with verified timing parameters documented in its datasheet.
Does the W25X80VDAIZ support dual-output SPI reads?
Yes, the W25X80VDAIZ supports dual-output SPI via the Fast Read Dual Output instruction (0x3B). During this operation, the DIO pin functions as a second data output alongside DO, enabling 150 Mbps effective read throughput at 75 MHz clock. This capability is confirmed in the "Dual Output SPI" section of the datasheet and is distinct from standard single-output SPI modes. The W25X80VDAIZ requires no external components to enable this feature.
What package type does W25X80VDAIZ use?
W25X80VDAIZ uses an 8-pin PDIP 300-mil package (package code DA), with 2.54 mm lead pitch and through-hole mounting. This package is explicitly listed in Section 12.3 of the datasheet and is compatible with standard wave-soldering processes. The pinout matches other W25X family members, ensuring layout reuse across density variants when using PDIP packaging.
How does write protection work on the W25X80VDAIZ?
The W25X80VDAIZ implements layered write protection: hardware protection via the active-low /WP pin (when SRP=1), and software protection via status register bits BP2–BP0 and TB. These bits allow selective locking of top or bottom memory regions-from 64KB sectors up to the full 1MB array. The W25X80VDAIZ also includes automatic write disable after power-up and after program/erase cycles, enforced by the Write Enable Latch (WEL) bit.
What is the operating temperature range for W25X80VDAIZ?
The W25X80VDAIZ is rated for industrial temperature operation from –40°C to +85°C, as specified in Section 11.2 ("Operating Ranges") of the datasheet. This range is validated across all electrical characteristics, including AC timing, endurance, and data retention. The W25X80VDAIZ maintains full functionality-including 75 MHz SPI operation and dual-output read-across this entire range without derating.
W25X80VDAIZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 8Mbit
- Memory Organization:
- 1M x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 75 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
W25X80VDAIZ FAQ
1.How can I place an order for W25X80VDAIZ through Aetrix?
Please submit a Request for Quotation (RFQ) for W25X80VDAIZ 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 W25X80VDAIZ reliable?
The price and inventory of W25X80VDAIZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25X80VDAIZ is usually 5 days.
3.What payment methods are accepted for W25X80VDAIZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25X80VDAIZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25X80VDAIZ?
W25X80VDAIZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25X80VDAIZ 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 W25X80VDAIZ?
For technical support, including W25X80VDAIZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25X80VDAIZ requirements.
6.How does Aetrix verify that W25X80VDAIZ is sourced from the original manufacturer or authorized distributors?
All W25X80VDAIZ 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 W25X80VDAIZ meets industry standards.
7.What is the process for return or replacement of W25X80VDAIZ?
All W25X80VDAIZ units undergo pre-shipment inspection (PSI). If there is an issue with W25X80VDAIZ, 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 W25X80VDAIZ part is unused and in its original packaging.
Return procedure for W25X80VDAIZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25X80VDAIZ Tags
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