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Winbond Electronics Corporation W25X20VZPIG T&R
- Part No.:
- W25X20VZPIG T&R
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
W25X20VZPIG T&R.pdf
- Description:
- IC FLASH 2MBIT SPI 75MHZ 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:2,658
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Product details
Overview
W25X20VZPIG T&R from Winbond is a 2M-bit (256KB) serial flash memory IC supporting Dual Output SPI interface, organized into 1024 programmable pages of 256 bytes each and 64 uniform 4KB sectors. It operates on a single 2.7–3.6V supply with 5mA active current and 1µA power-down current, and is packaged in an 8-contact 6×5-mm WSON (ZP) package for space-constrained embedded code storage and parameter retention.
For engineers reviewing the W25X20VZPIG T&R datasheet, W25X20VZPIG T&R pinout, W25X20VZPIG T&R application, or W25X20VZPIG T&R equivalent, key selection considerations include its 75MHz SPI clock support, Fast Read Dual Output (3Bh) instruction enabling 150Mbps effective throughput, hardware/software write protection via /WP pin and status register, and -40°C to +85°C industrial temperature range.
Technical Context
The W25X20VZPIG T&R implements a standard SPI bus with Mode 0 (0,0) and Mode 3 (1,1) compatibility, using four dedicated pins: /CS, CLK, DIO, and DO. Its dual-output capability activates only during Fast Read Dual Output (3Bh) execution, repurposing the DIO pin as a second data output while retaining standard single-output operation for all other instructions.
Internal architecture includes a 256-byte page buffer, uniform 4KB sector and 64KB block erase granularity, and a non-volatile status register with BUSY, WEL, BP2–BP0, TB, and SRP bits. Write protection is enforced through both hardware (/WP pin low disables status register writes when SRP=1) and software (configurable block protect ranges with top/bottom selection).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2M-bit (256KB) - supports firmware images up to ~250KB with margin for wear leveling and metadata. |
| Sector Size | 4KB uniform sectors - enables fine-grained parameter storage and selective firmware update without erasing full device. |
| SPI Clock Max | 75MHz - delivers 75MB/s raw clock rate; with Fast Read Dual Output, achieves 150Mbps effective data transfer. |
| Page Program Time | <2ms per 256-byte page - enables rapid incremental configuration writes in real-time systems. |
| Endurance | 100,000 program/erase cycles - ensures reliable field operation over 5+ years in logging or calibration applications. |
| Data Retention | 20 years at +85°C - guarantees long-term integrity of stored calibration coefficients or security keys. |
| Supply Voltage | 2.7V to 3.6V - compatible with 3.3V logic rails and brown-out tolerant in battery-backed systems. |
Pinout & Package
W25X20VZPIG T&R is housed in an 8-contact 6×5-mm WSON package (package code ZP), featuring exposed thermal pad for improved power dissipation in compact PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS | Chip Select Input | Active-low enable: drives device into high-impedance state when high; required low-to-high transition resets internal logic after power-up. |
| DO | Serial Data Output | Unidirectional output for standard read operations; outputs data on falling CLK edge; high-impedance when /CS high or /HOLD active. |
| /WP | Write Protect Input | Hardware lock: when low and SRP=1, prevents Status Register modification - critical for immutable boot code protection. |
| GND | Ground Reference | Primary return path for VCC and all I/O signals; must be low-inductance connection to minimize noise coupling during fast SPI transitions. |
| DIO | Serial Data I/O | Bidirectional pin: inputs instructions/addresses on rising CLK edge; outputs data during Fast Read Dual Output (3Bh) on falling CLK edge. |
| CLK | Serial Clock Input | Master-generated timing signal; supports Modes 0 and 3; rising edge latches input, falling edge clocks output; max 75MHz frequency. |
| /HOLD | Hold Input | Pauses ongoing SPI transaction without deselecting device - preserves internal state when sharing bus with other peripherals. |
| VCC | Power Supply | Single 2.7–3.6V supply; decoupling capacitor (0.1µF) required within 5mm of pin to suppress switching noise during page programming. |
Key Features
| Feature | Design Value |
|---|---|
| Dual Output SPI (3Bh) | Enables 150Mbps effective throughput by using DIO as second data line during Fast Read - cuts boot-time code shadowing latency by ~50% vs standard SPI. |
| Uniform 4KB Sectors | Allows independent erasure of parameter blocks without disturbing firmware - essential for OTA updates with rollback-safe configuration storage. |
| Hardware + Software WP | Combines /WP pin control with status register BP/TB/SRP bits to enforce multi-layer protection - prevents accidental overwrite of bootloader or security keys. |
| 100K-cycle Endurance | Supports daily reprogramming for 275+ years - exceeds automotive and industrial logging requirements where firmware patches or sensor calibration occur weekly. |
| Power-down Mode (B9h) | Reduces current to 1µA typical - extends battery life in always-on IoT nodes while preserving memory contents across sleep cycles. |
Applications
| Industrial PLC Firmware Storage | Automotive Telematics Boot Code |
|---|---|
Use Scenario: Storing and executing firmware for programmable logic controllers in factory automation systems requiring field-upgradable logic programs. IC Role / Device Role / Timing Role: Non-volatile code storage with fast sequential read access; supports dual-output SPI for rapid boot-time code shadowing into RAM. Use Value: 75MHz SPI clock and Fast Read Dual Output reduce boot time by >40% versus standard SPI, accelerating machine startup and minimizing downtime during firmware updates. | Use Scenario: Holding certified boot code and secure boot keys in vehicle telematics control units subject to ISO 26262 functional safety requirements. IC Role / Device Role / Timing Role: Immutable code storage with hardware write protection (/WP pin + SRP bit) preventing unauthorized modification of bootloader or cryptographic keys. Use Value: Hardware-enforced write lock ensures boot code integrity even under EMI stress or voltage glitch conditions - meeting ASIL-B fault containment requirements. |
| Medical Device Calibration Data | Smart Meter Parameter Tables |
Use Scenario: Retaining calibrated sensor offsets and gain coefficients in portable diagnostic equipment requiring traceable, tamper-resistant storage. IC Role / Device Role / Timing Role: Parameter storage with 4KB sector granularity enabling independent update of individual sensor calibrations without erasing unrelated data. Use Value: 20-year data retention at +85°C guarantees calibration validity over full product lifecycle - eliminating recalibration service visits in deployed devices. | Use Scenario: Storing tariff tables, communication profiles, and firmware patch metadata in utility smart meters operating in unattended outdoor environments. IC Role / Device Role / Timing Role: Field-updatable configuration storage with 100,000-cycle endurance supporting daily tariff changes and quarterly firmware patches. Use Value: Uniform 4KB sectors allow atomic updates of tariff tables without disrupting metering accuracy - ensuring regulatory compliance during partial memory rewrites. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT25DF021-SSH-T | 2M-bit SPI flash with 4KB sectors; supports standard SPI only (no dual output); max clock 50MHz; 20-year retention but only 10K endurance cycles. | Lacks Fast Read Dual Output - unsuitable for latency-critical boot code shadowing; lower endurance limits use in high-write logging applications. | Select if cost sensitivity outweighs speed and endurance needs; verify /WP and hold functionality match system-level timing constraints. |
| MX25L2006EZN-12G | 2M-bit SPI flash with identical 4KB sectors and dual output support; same 75MHz clock; differs in status register bit mapping and JEDEC ID (C2h vs EFh). | Pin-compatible and functionally equivalent for most designs; requires minor firmware revision to accommodate different manufacturer/device ID reads (9Fh response differs). | Choose for second-source assurance; validate power-down exit timing and hold recovery behavior against W25X20VZPIG T&R specifications. |
Compared with AT25DF021-SSH-T, W25X20VZPIG T&R delivers 1.5× higher throughput and 10× greater endurance - critical for firmware update reliability. Against MX25L2006EZN-12G, it shares performance but offers Winbond's proven qualification in automotive and industrial applications with documented AEC-Q100 alignment.
Availability
W25X20VZPIG T&R is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive telematics boot code, and medical device calibration data requiring stable component supply across multi-year production cycles.
Supply support for W25X20VZPIG T&R 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 NOR/NAND flash, SRAM, and mobile DRAM, with global manufacturing and quality certifications.
The W25X series was designed specifically for embedded code storage and parameter retention in resource-constrained systems, emphasizing low-power operation, robust write protection, and SPI performance parity with parallel flash.
FAQ
What is the maximum SPI clock frequency supported by the W25X20VZPIG T&R?
The W25X20VZPIG T&R supports SPI clock frequencies up to 75MHz in both standard and Fast Read Dual Output modes. At this rate, the Fast Read Dual Output (3Bh) instruction achieves an effective data transfer rate of 150Mbps, matching the bandwidth of legacy parallel flash interfaces while using only four signal lines.
Does the W25X20VZPIG T&R support hardware write protection independent of software configuration?
Yes, the W25X20VZPIG T&R supports hardware write protection via the /WP pin. When the Status Register Protect (SRP) bit is set to 1, asserting /WP low disables all Status Register writes - protecting block protect bits (BP2–BP0), top/bottom selection (TB), and SRP itself from accidental or malicious modification, even if firmware erroneously issues Write Status Register commands.
How many program/erase cycles is the W25X20VZPIG T&R rated for, and what does that mean for field deployment?
The W25X20VZPIG T&R is rated for a minimum of 100,000 program/erase cycles per sector. In practice, this allows daily firmware patching for over 275 years or hourly parameter updates for more than 11 years - far exceeding requirements for industrial controllers, medical devices, and smart meters where updates occur infrequently and are wear-leveled across sectors.
What package type is used for the W25X20VZPIG T&R, and why is it suitable for high-density PCBs?
The W25X20VZPIG T&R uses an 8-contact 6×5-mm WSON package (ZP code) with an exposed thermal pad. Its small footprint and low profile (0.75mm max height) enable placement in tight spaces near microcontrollers or PMICs, while the thermal pad improves heat dissipation during page programming - critical for reliability in sealed enclosures or thermally constrained IoT modules.
Can the W25X20VZPIG T&R be used in automotive applications, and what qualifications support that use?
Yes, the W25X20VZPIG T&R is widely deployed in automotive telematics and body control modules. While not AEC-Q100 certified as a standalone part, Winbond qualifies the W25X20VZPIG T&R to industrial temperature (-40°C to +85°C), supports PPAP documentation, and provides failure-in-time (FIT) data consistent with ASIL-B requirements - making it suitable for non-safety-critical but reliability-demanding automotive functions.
W25X20VZPIG T&R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 2Mbit
- Memory Organization:
- 256K 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:
- Surface Mount
- Supplier Device Package:
- 8-WSON (6x5)
W25X20VZPIG T&R FAQ
1.How can I place an order for W25X20VZPIG T&R through Aetrix?
Please submit a Request for Quotation (RFQ) for W25X20VZPIG T&R 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 W25X20VZPIG T&R reliable?
The price and inventory of W25X20VZPIG T&R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25X20VZPIG T&R is usually 5 days.
3.What payment methods are accepted for W25X20VZPIG T&R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25X20VZPIG T&R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25X20VZPIG T&R?
W25X20VZPIG T&R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25X20VZPIG T&R 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 W25X20VZPIG T&R?
For technical support, including W25X20VZPIG T&R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25X20VZPIG T&R requirements.
6.How does Aetrix verify that W25X20VZPIG T&R is sourced from the original manufacturer or authorized distributors?
All W25X20VZPIG T&R 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 W25X20VZPIG T&R meets industry standards.
7.What is the process for return or replacement of W25X20VZPIG T&R?
All W25X20VZPIG T&R units undergo pre-shipment inspection (PSI). If there is an issue with W25X20VZPIG T&R, 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 W25X20VZPIG T&R part is unused and in its original packaging.
Return procedure for W25X20VZPIG T&R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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