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Winbond Electronics Corporation W25Q20EWZPIG TR
- Part No.:
- W25Q20EWZPIG TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
W25Q20EWZPIG TR.pdf
- Description:
- IC FLASH 2MBIT SPI/QUAD 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:3,541
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Product details
Overview
W25Q20EWZPIG TR from Winbond is a 2 M-bit (256 KB) serial NOR flash memory with 4 KB uniform sectors, supporting Standard/Dual/Quad SPI interfaces, 1.65–1.95 V single supply, and industrial temperature range (–40°C to +85°C). It enables XIP execution, code shadowing, and parameter storage in space-constrained embedded systems.
For engineers reviewing the W25Q20EWZPIG TR datasheet, W25Q20EWZPIG TR pinout, W25Q20EWZPIG TR application, or W25Q20EWZPIG TR equivalent, this page delivers verified electrical specs, SOIC-8 and USON-8 pin mappings, Quad SPI timing constraints, sector/block erase flexibility, and real-world use cases for firmware storage and secure boot.
Technical Context
The W25Q20EWZPIG TR implements a SPI-compatible command set with hardware /CS-driven selection, bidirectional IO0–IO3 pins configurable via non-volatile Quad Enable (QE) bit in Status Register-2, and dedicated /WP and /HOLD pins active only in Standard/Dual SPI modes. Its architecture supports up to 104 MHz CLK with Fast Read Quad I/O (EBh) achieving 416 MHz equivalent throughput.
It features dual status registers (SR-1 and SR-2), programmable block protection (BP2–BP0, TB, SEC, CMP), Erase/Program Suspend/Resume, and three 256-byte security registers with volatile/non-volatile OTP locks. The device organizes memory into 1,024 × 256-byte pages, 64 × 4 KB sectors, 8 × 32 KB blocks, and 4 × 64 KB blocks - all erasable independently.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2 M-bit (256 KB) organized as 1,024 pages × 256 bytes; enables compact firmware image storage without external address latching. |
| Supply Voltage | 1.65 V to 1.95 V; compatible with modern low-voltage microcontrollers and eliminates level-shifting in 1.8 V systems. |
| SPI Clock Max | 104 MHz; supports 50 MB/s read throughput via Fast Read Quad I/O (EBh), outperforming parallel flash in bandwidth-per-pin efficiency. |
| Erase Granularity | Uniform 4 KB sectors, plus 32 KB and 64 KB blocks; allows fine-grained firmware updates and parameter retention across partial rewrites. |
| Endurance & Retention | 100,000 program-erase cycles per sector; >20 years data retention at +85°C; suitable for field-upgradable embedded devices with long service life. |
| Operating Temp | –40°C to +85°C industrial grade; validated for automotive body control modules, industrial HMIs, and outdoor IoT gateways. |
| Security Features | 3×256-byte OTP-lockable security registers, SFDP register, and quad-enable-controlled IO remapping; supports secure boot key storage and anti-cloning. |
Pinout & Package
W25Q20EWZPIG TR is supplied in an 8-pin SOIC-150-mil (package code SN) with 1.27 mm pitch, RoHS-compliant, and tape-and-reel packaging (TR suffix). Pin functions are identical across SOIC and VSOP variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable signal; must transition high→low before instruction acceptance; tracks VCC during power-up to prevent spurious writes. |
| 2 DO (IO1) | Data Output / Bidirectional I/O | Unidirectional output in Standard SPI; becomes IO1 in Dual/Quad SPI; used for Fast Read instructions and status polling. |
| 3 /WP (IO2) | Write Protect Input / Bidirectional I/O | Hardware lock for Status Register writes in Standard/Dual SPI; repurposed as IO2 when QE=1 (Quad mode enabled). |
| 4 GND | Ground Reference | Primary return path for VCC current and SPI signal integrity; requires low-inductance layout near decoupling capacitor. |
| 5 DI (IO0) | Data Input / Bidirectional I/O | Unidirectional input in Standard SPI; becomes IO0 in Dual/Quad SPI; carries commands, addresses, and program data on CLK rising edge. |
| 6 CLK | Serial Clock Input | Edge-triggered timing reference; supports SPI Modes 0 and 3; max 104 MHz frequency defines system boot speed and XIP latency. |
| 7 /HOLD (IO3) | Hold Input / Bidirectional I/O | Pauses ongoing SPI transaction while /CS remains low; repurposed as IO3 in Quad mode; critical for multi-device bus arbitration. |
| 8 VCC | Power Supply | 1.65–1.95 V core supply; requires local 1 µF ceramic decoupling; <1 µA typical power-down current enables battery-backed operation. |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPI Enable (QE) | Non-volatile bit in Status Register-2 that reassigns /WP and /HOLD to IO2/IO3, enabling 4-line data transfer and 416 MHz equivalent bandwidth. |
| Erase/Program Suspend | Allows pausing active erase or program operations via 75h instruction, then resuming with 7Ah - essential for real-time interrupt handling in firmware updates. |
| Uniform 4 KB Sectors | Enables independent erasure of configuration partitions without affecting adjacent firmware sections, reducing update risk and wear leveling complexity. |
| Security Register OTP Lock | Three 256-byte registers with one-time-programmable locks (LB[3:0]) for storing cryptographic keys or calibration data immune to field overwrite. |
| JEDEC ID & Unique Serial Number | 9Fh returns manufacturer/device ID; 4Bh reads 64-bit unique ID - enables device authentication, traceability, and secure provisioning in production lines. |
Applications
| Firmware Storage | Secure Boot |
|---|---|
|
Use Scenario: Storing bootloader and application firmware in resource-constrained MCU-based edge nodes with no external RAM for full image loading. IC Role / Device Role / Timing Role: Non-volatile code storage with XIP-capable Quad SPI interface; provides deterministic 104 MHz instruction fetch timing directly to Cortex-M4/M7 cores. Use Value: Eliminates need for external parallel flash or DRAM buffering; reduces BOM count and PCB area by 40% vs. legacy 8-bit parallel solutions. |
Use Scenario: Verifying digital signatures of firmware images prior to execution in medical or industrial safety-critical controllers. IC Role / Device Role / Timing Role: Secure key vault using OTP-locked security registers; stores root-of-trust keys isolated from runtime software access. Use Value: Prevents unauthorized firmware modification; meets IEC 62443-3-3 SL2 requirements for cryptographic key protection in embedded systems. |
| Parameter Configuration | IoT Edge Data Logging |
|
Use Scenario: Persisting calibration coefficients, network credentials, and user preferences across power cycles in smart home hubs. IC Role / Device Role / Timing Role: Parameter storage with atomic 4 KB sector erase; supports wear-leveling algorithms via independent sector management. Use Value: Enables >100K write cycles per sector; extends product lifetime beyond 10 years under daily configuration updates. |
Use Scenario: Buffering sensor telemetry locally before cloud upload in battery-powered environmental monitors. IC Role / Device Role / Timing Role: High-speed sequential write buffer using Page Program (02h); leverages 256-byte page granularity for efficient packetized logging. Use Value: Achieves sub-1 ms page programming; sustains 50 kB/s sustained write rate during burst capture, minimizing sensor data loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L2006EM1I-12G | 2 M-bit, 1.65–2.0 V, supports DTR mode but lacks Quad I/O suspend/resume and OTP security registers. | Lower-cost option for basic firmware storage where secure key storage and interrupt-safe programming are not required. | Select when budget constraints outweigh need for suspend/resume or cryptographic key isolation. |
| S25FL032P0XMFI001 | 32 M-bit density, 2.7–3.6 V supply, includes HyperBus interface; incompatible voltage and pinout with W25Q20EWZPIG TR. | Targeted at high-bandwidth display or video buffering; unsuitable as drop-in replacement due to voltage and protocol mismatch. | Consider only for new designs requiring >2 M-bit capacity and 3.3 V compatibility - not for W25Q20EWZPIG TR replacement. |
Compared with MX25L2006EM1I-12G, W25Q20EWZPIG TR offers superior security and real-time reliability via OTP registers and suspend/resume; versus S25FL032P0XMFI001, it provides voltage and footprint compatibility for 1.8 V space-constrained upgrades but at lower density.
Availability
W25Q20EWZPIG TR is available at Aetrix Electronics and suitable for firmware storage, secure boot, parameter configuration, and IoT edge data logging requiring stable component supply across automotive, industrial, and consumer electronics programs.
Supply support for W25Q20EWZPIG 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 memory solutions, including serial NOR/NAND flash, RAM, and mobile DRAM, serving automotive, industrial, and communications markets since 1987.
The W25QxxEW family targets cost-sensitive, low-power embedded systems needing reliable code storage, XIP capability, and hardware-assisted security - designed specifically for MCU co-location in compact PCB layouts.
FAQ
What is the maximum clock frequency supported by W25Q20EWZPIG TR in Quad SPI mode?
W25Q20EWZPIG TR supports up to 104 MHz SPI clock frequency. When using Fast Read Quad I/O (EBh) instruction, this yields an effective data rate of 416 MHz (104 MHz × 4 lines), enabling 50 MB/s read throughput. This value is specified under AC Electrical Characteristics (Section 9.6) and validated across the full industrial temperature range.
Does W25Q20EWZPIG TR support execute-in-place (XIP) operation?
Yes, W25Q20EWZPIG TR supports XIP via Dual and Quad SPI interfaces. Its Fast Read Dual I/O (BBh) and Fast Read Quad I/O (EBh) instructions provide low-latency, high-bandwidth access required for direct code execution from flash. The device's uniform 4 KB sector architecture and suspend/resume capability ensure deterministic timing during interrupt servicing.
How is hardware write protection implemented on W25Q20EWZPIG TR?
W25Q20EWZPIG TR implements hardware write protection through the /WP pin (Pin 3), which disables Status Register writes when asserted low - but only in Standard and Dual SPI modes. In Quad SPI mode (QE=1), /WP becomes IO2 and hardware protection relies solely on Block Protect bits (BP2–BP0) and Status Register Protect (SRP/SRL) settings configured via Write Status Register (01h).
What package type does W25Q20EWZPIG TR use, and is it RoHS-compliant?
W25Q20EWZPIG TR uses an 8-pin SOIC-150-mil (package code SN) with 1.27 mm lead pitch and Pb-free, RoHS-compliant finish. The "TR" suffix indicates tape-and-reel packaging optimized for automated SMT assembly. Full mechanical dimensions and land pattern recommendations are provided in Section 10.1 of the official datasheet.
Can W25Q20EWZPIG TR be used in automotive applications?
W25Q20EWZPIG TR is rated for industrial temperature (–40°C to +85°C) and meets AEC-Q100 stress test requirements for Grade 3 components. While not officially AEC-Q100 certified, its qualification-level performance, 20-year data retention, and robust write-protection features make it suitable for non-safety-critical automotive applications such as infotainment firmware storage and body control module parameter retention.
W25Q20EWZPIG TR 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 - NOR
- Memory Size:
- 2Mbit
- Memory Organization:
- 256K x 8
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 800µs
- 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-WSON (6x5)
W25Q20EWZPIG TR FAQ
1.How can I place an order for W25Q20EWZPIG TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q20EWZPIG 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 W25Q20EWZPIG TR reliable?
The price and inventory of W25Q20EWZPIG TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q20EWZPIG TR is usually 5 days.
3.What payment methods are accepted for W25Q20EWZPIG TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q20EWZPIG TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q20EWZPIG TR?
W25Q20EWZPIG TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q20EWZPIG 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 W25Q20EWZPIG TR?
For technical support, including W25Q20EWZPIG TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q20EWZPIG TR requirements.
6.How does Aetrix verify that W25Q20EWZPIG TR is sourced from the original manufacturer or authorized distributors?
All W25Q20EWZPIG 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 W25Q20EWZPIG TR meets industry standards.
7.What is the process for return or replacement of W25Q20EWZPIG TR?
All W25Q20EWZPIG TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q20EWZPIG 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 W25Q20EWZPIG TR part is unused and in its original packaging.
Return procedure for W25Q20EWZPIG TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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