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Winbond Electronics Corporation W25Q32FWSSIG TR
- Part No.:
- W25Q32FWSSIG TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
W25Q32FWSSIG TR.pdf
- Description:
- IC FLASH 32MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,037
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Product details
Overview
W25Q32FWSSIG TR from Winbond is a 1.8V, 32M-bit (4MB) serial NOR flash memory with Dual/Quad SPI and QPI interfaces, organized as 32,768 × 256-byte pages, supporting sector (4KB), block (32KB/64KB), and chip erase, used for code storage, XIP execution, and firmware parameter retention in space-constrained embedded systems.
For engineers reviewing the W25Q32FWSSIG TR datasheet, W25Q32FWSSIG TR pinout, W25Q32FWSSIG TR application, or W25Q32FWSSIG TR equivalent, key selection criteria include 104MHz SPI clock support, Quad Enable (QE) bit configuration, /HOLD or /RESET dual-function pin behavior in 8-pin SOIC, 4KB uniform sector architecture, and JEDEC-compliant SFDP register access.
Technical Context
The W25Q32FWSSIG TR implements a standard SPI Mode 0/3 interface with bidirectional IO0–IO3 pins enabled under Quad SPI mode when Status Register-2's QE bit is set; /WP and /HOLD functions are disabled in Quad mode and repurposed as IO2 and IO3. It supports continuous read with wrap (8/16/32/64-byte) and true execute-in-place (XIP) operation via Fast Read Quad I/O (EBh) at up to 416MHz effective throughput.
Its memory array is partitioned into 1,024 erasable 4KB sectors and 64 erasable 64KB blocks, with programmable write protection via volatile/non-volatile status bits (BP2–BP0, TB, SEC, CMP, SRP0/SRP1), hardware /WP pin control, and three 256-byte one-time-programmable (OTP) security registers for secure boot and firmware integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 M-bit (4 MB) - supports full firmware images and multi-application storage in compact MCU-based designs. |
| Supply Voltage | 1.65V to 1.95V - enables direct integration with 1.8V logic domains without level-shifting. |
| SPI Clock Max | 104 MHz - delivers 50 MB/s continuous read throughput using Fast Read Quad I/O (EBh). |
| Erase Granularity | 4 KB sectors / 32 KB & 64 KB blocks - allows fine-grained firmware updates without full chip erase. |
| Endurance | 100,000 program-erase cycles per sector - ensures long-term reliability in field-upgradable devices. |
| Data Retention | 20 years - guarantees persistent storage of calibration data, device IDs, and configuration parameters. |
| Interface Modes | Standard SPI / Dual SPI / Quad SPI / QPI - provides backward compatibility and scalable bandwidth for evolving system requirements. |
Pinout & Package
W25Q32FWSSIG TR uses an 8-pin SOIC 208-mil package (Package Code SS), with exposed pad not present and lead-free RoHS-compliant finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable signal; high-impedance DO output and standby current when deasserted. |
| 2 DO (IO1) | Data Output / Quad I/O Line 1 | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad modes; requires QE=1 for Quad use. |
| 3 /WP (IO2) | Write Protect Input / Quad I/O Line 2 | Hardware lock for status register writes; disabled as /WP and repurposed as IO2 when QE=1. |
| 4 GND | Ground Reference | Primary return path for VCC and all I/O signals; must be low-impedance for stable timing and noise immunity. |
| 5 DI (IO0) | Data Input / Quad I/O Line 0 | Unidirectional input in Standard SPI; bidirectional I/O in Dual/Quad modes; required for instruction/address loading. |
| 6 CLK | Serial Clock Input | Edge-triggered timing reference for all SPI/QPI operations; supports Mode 0 and Mode 3 polarity/phase configurations. |
| 7 /HOLD or /RESET (IO3) | Hold Input / Reset Input / Quad I/O Line 3 | Dual-function pin: active-low pause during SPI transfer when QE=0; becomes IO3 in Quad mode (QE=1); no dedicated /RESET in this 8-pin variant. |
| 8 VCC | Power Supply | 1.65–1.95V core supply; decoupling capacitor required near pin for transient current stability during program/erase. |
Key Features
| Feature | Design Value |
|---|---|
| Quad Peripheral Interface (QPI) | Reduces instruction overhead to 2 clocks per command, enabling deterministic XIP execution with minimal CPU intervention. |
| Erase/Program Suspend & Resume | Allows background interrupt servicing during long erase cycles (e.g., 64KB block erase ~200ms), preserving real-time system responsiveness. |
| 64-bit Unique Serial Number | Enables device-level traceability and cryptographic binding in secure boot and anti-counterfeiting implementations. |
| JEDEC SFDP Register | Provides standardized, vendor-agnostic access to timing parameters, erase block map, and feature flags-eliminating hard-coded driver assumptions. |
| Volatile & Non-Volatile Status Bits | Supports dynamic protection (e.g., BP bits cleared on power cycle) and permanent lockdown (e.g., OTP security register locks) in same device. |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
Use Scenario: Storing and updating ladder logic firmware and I/O configuration tables in DIN-rail mounted controllers operating across -40°C to +85°C. IC Role / Device Role / Timing Role: Primary non-volatile code storage with XIP-capable Quad SPI interface for deterministic boot latency and in-field firmware patching. Use Value: 4KB sector erase enables incremental updates without disrupting runtime logic; 20-year data retention ensures unattended operation over full product lifecycle. | Use Scenario: Holding boot code, sensor calibration data, and safety-critical firmware for camera/radar ECUs requiring ASIL-B compliance. IC Role / Device Role / Timing Role: Secure boot memory with OTP security registers and unique ID for cryptographic signature verification and anti-cloning. Use Value: Three 256-byte security registers allow segregated storage of keys, certificates, and revocation lists; JEDEC SFDP ensures consistent timing across temperature and voltage corners. |
| IoT Edge Node Configuration | Medical Diagnostic Device Parameter Storage |
Use Scenario: Persisting wireless credentials, sensor calibration offsets, and user preferences in battery-powered BLE/Wi-Fi edge nodes with strict power budgets. IC Role / Device Role / Timing Role: Low-voltage (1.8V) serial flash providing <1µA power-down current and fast wake-up for infrequent parameter reads/writes. Use Value: 4mA active current and 1µA deep power-down minimize energy consumption between telemetry transmissions; uniform 4KB sectors simplify OTA update partitioning. | Use Scenario: Storing FDA-mandated device calibration coefficients, usage logs, and regulatory audit trails in portable ultrasound and ECG analyzers. IC Role / Device Role / Timing Role: Tamper-resistant parameter memory with hardware write protection (/WP pin + BP bits) and non-volatile status locking (SRP bits). Use Value: Top/bottom array protection prevents accidental overwrite of critical calibration data; 100K-cycle endurance supports daily recalibration over 10+ years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L3233FZC-10G | 32M-bit, 1.65–2.0V, 104MHz max SPI clock, but lacks QPI mode and SFDP register; uses different status register layout. | No QPI support limits XIP efficiency; missing SFDP requires hardcoded driver timing values. | Select when QPI and SFDP are unnecessary and legacy MXIC driver compatibility is prioritized. |
| S25FL132K0XMFI010 | 32M-bit, 2.7–3.6V only; supports Octal DTR mode (not supported by W25Q32FWSSIG TR); includes hardware reset pin in all packages. | Incompatible 3V supply prevents drop-in replacement; Octal mode offers higher bandwidth but requires controller support not needed for most W25Q32FWSSIG TR use cases. | Select for 3V systems requiring enhanced security features (secure OTP, crypto acceleration) and guaranteed /RESET pin availability. |
Compared with MX25L3233FZC-10G, W25Q32FWSSIG TR adds QPI and SFDP for flexible, future-proof driver design; versus S25FL132K0XMFI010, it enables 1.8V operation and lower active power but lacks integrated crypto engines and fixed /RESET-making it optimal for cost-sensitive, voltage-constrained embedded firmware storage.
Availability
W25Q32FWSSIG TR is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, and IoT edge node configuration requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for W25Q32FWSSIG 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 consumer, industrial, and automotive markets.
The W25Q series targets embedded systems needing high-speed, low-voltage, secure serial flash for code execution, firmware updates, and parameter storage-emphasizing XIP capability, small-footprint packaging, and robust data integrity.
FAQ
What is the operating voltage range for the W25Q32FWSSIG TR?
The W25Q32FWSSIG TR operates from 1.65V to 1.95V. This 1.8V nominal supply range enables direct interfacing with modern low-power microcontrollers and SoCs without level-shifting circuitry. Operation outside this range may cause unreliable read/write behavior or damage the device. The W25Q32FWSSIG TR does not support 3.3V operation.
Does the W25Q32FWSSIG TR support Quad Peripheral Interface (QPI) mode?
Yes, the W25Q32FWSSIG TR supports QPI mode, which reduces instruction overhead to two clock cycles per command. Activation requires setting the Quad Enable (QE) bit in Status Register-2 via Write Status Register-2 (31h) instruction. Once enabled, pins /WP and /HOLD become IO2 and IO3, disabling their hardware protection functions.
How many program-erase cycles does the W25Q32FWSSIG TR guarantee per sector?
The W25Q32FWSSIG TR guarantees a minimum of 100,000 program-erase cycles per 4KB sector. This endurance rating applies under specified operating conditions (1.65–1.95V, -40°C to +85°C) and is validated per JEDEC standards. Wear leveling must be implemented in firmware to distribute writes across sectors and achieve full lifecycle reliability.
What package type is used by the W25Q32FWSSIG TR?
The W25Q32FWSSIG TR uses an 8-pin SOIC 208-mil package (Package Code SS), with gull-wing leads, Pb-free (RoHS-compliant) finish, and no exposed thermal pad. This package is compatible with standard reflow profiles and automated PCB assembly processes, and matches footprint requirements for legacy 208-mil SOIC sockets and layouts.
Can the W25Q32FWSSIG TR be used for execute-in-place (XIP) applications?
Yes, the W25Q32FWSSIG TR supports true execute-in-place (XIP) operation via its Continuous Read Mode and Fast Read Quad I/O (EBh) instruction, achieving up to 416MHz effective throughput. This enables direct code execution from flash without copying to RAM, reducing system memory footprint and boot time-ideal for resource-constrained MCUs in industrial and medical devices.
W25Q32FWSSIG 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:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 32Mbit
- Memory Organization:
- 4M 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:
- 8-SOIC
W25Q32FWSSIG TR FAQ
1.How can I place an order for W25Q32FWSSIG TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q32FWSSIG 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 W25Q32FWSSIG TR reliable?
The price and inventory of W25Q32FWSSIG TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q32FWSSIG TR is usually 5 days.
3.What payment methods are accepted for W25Q32FWSSIG TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q32FWSSIG TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q32FWSSIG TR?
W25Q32FWSSIG TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q32FWSSIG 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 W25Q32FWSSIG TR?
For technical support, including W25Q32FWSSIG TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q32FWSSIG TR requirements.
6.How does Aetrix verify that W25Q32FWSSIG TR is sourced from the original manufacturer or authorized distributors?
All W25Q32FWSSIG 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 W25Q32FWSSIG TR meets industry standards.
7.What is the process for return or replacement of W25Q32FWSSIG TR?
All W25Q32FWSSIG TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q32FWSSIG 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 W25Q32FWSSIG TR part is unused and in its original packaging.
Return procedure for W25Q32FWSSIG TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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