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Winbond Electronics Corporation W25Q32FVSSIG TR

Name: W25Q32FVSSIG TR
Brand: Winbond Electronics Corporation
SKU: W25Q32FVSSIG TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: W25Q32FVSSIG TR

Manufacturer:: Winbond Electronics Corporation

Category:: Memory

Package:: 8-SOIC (0.209", 5.30mm Width)

Datasheet:: W25Q32FVSSIG TR.pdf

Description:: IC FLASH 32MBIT SPI/QUAD 8SOIC

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Product details

Overview

W25Q32FVSSIG TR from Winbond is a 32M-bit (4MB) serial NOR flash memory IC supporting Standard/Dual/Quad SPI and QPI interfaces, operating at 2.7–3.6V with 104MHz max clock rate and 4KB uniform sector erase architecture. It delivers 50MB/s continuous read throughput and supports execute-in-place (XIP) for code storage in embedded microcontrollers, IoT edge nodes, and industrial HMI displays.

For engineers reviewing the W25Q32FVSSIG TR datasheet, W25Q32FVSSIG TR pinout, W25Q32FVSSIG TR application, or W25Q32FVSSIG TR equivalent, key selection criteria include Quad Enable (QE) bit configuration, /HOLD vs /RESET pin mapping in SOIC-8, 4KB sector granularity for firmware partitioning, and JEDEC SFDP register compatibility for auto-configuration.

Technical Context

The W25Q32FVSSIG TR implements a dual-mode I/O architecture: standard SPI uses unidirectional DI/DO pins, while Quad SPI repurposes /WP and /HOLD as IO2/IO3 when QE=1 in Status Register-2. Its command set includes Fast Read Quad I/O (EBh), Word Read Quad I/O (E7h), and Octal Word Read (E3h), enabling true XIP with ≤8-clock address overhead.

Memory organization comprises 16,384 × 256-byte pages across 1,024 erasable 4KB sectors and 64 erasable 64KB blocks. Erase/program suspend/resume functionality enables concurrent background operations, and three 256-byte OTP-locked security registers support firmware integrity protection.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Density	32 M-bit (4 MB) - sufficient for full MCU boot images and parameter tables in space-constrained designs
Interface Modes	Standard/Dual/Quad SPI & QPI - enables flexible host controller compatibility and bandwidth scaling up to 416 MHz equivalent
Max Clock Frequency	104 MHz - supports 50 MB/s continuous read in Quad I/O mode, outperforming parallel flash in pin-count-limited systems
Erase Granularity	4 KB sectors (1,024 total) - allows fine-grained firmware update partitioning without disturbing adjacent application code
Write Endurance	100,000 cycles - ensures reliable field updates for industrial firmware over 10+ years of operation
Data Retention	20 years - meets long-life requirements for medical, automotive, and infrastructure equipment
Supply Voltage	2.7 V to 3.6 V - compatible with 3.3 V logic families and low-power battery-backed systems
Power-Down Current	1 µA (typ.) - minimizes standby power in always-on IoT sensors and remote monitoring devices

Pinout & Package

W25Q32FVSSIG TR is packaged in 8-pin SOIC 208-mil (Package Code SS), with pin 1 = /CS, pin 2 = DO (IO1), pin 3 = /WP (IO2), pin 4 = GND, pin 5 = DI (IO0), pin 6 = CLK, pin 7 = /HOLD or /RESET (IO3), pin 8 = VCC. Pin 7 functions as /HOLD in Standard/Dual SPI mode and becomes IO3 in Quad SPI mode when QE=1.

Pin/Terminal	Circuit Role	Design Meaning
/CS (Pin 1)	Chip Select Input	Active-low enable: high-Z output and standby current when high; required high-to-low transition after power-up to accept commands
DO / IO1 (Pin 2)	Data Output / Bidirectional I/O	Unidirectional output in Standard SPI; bidirectional data lane in Dual/Quad SPI; requires pull-up for open-drain compatibility
/WP / IO2 (Pin 3)	Write Protect Input / Bidirectional I/O	Hardware lock for status register when active low; repurposed as IO2 in Quad SPI (QE=1); not available during QPI mode
GND (Pin 4)	Ground Reference	Primary return path for VCC and all I/O signals; must be low-impedance to maintain timing margins at 104 MHz
DI / IO0 (Pin 5)	Data Input / Bidirectional I/O	Unidirectional input in Standard SPI; bidirectional data lane in Dual/Quad SPI; used for instruction/address/data loading on CLK rising edge
CLK (Pin 6)	Serial Clock Input	Master-synchronized timing source; defines setup/hold windows for all I/O transitions; max 104 MHz frequency rating
/HOLD or /RESET / IO3 (Pin 7)	Hold or Reset Input / Bidirectional I/O	Pauses ongoing SPI transfer when low; configurable as hardware reset via Status Register; becomes IO3 in Quad SPI (QE=1)
VCC (Pin 8)	Power Supply	2.7–3.6 V supply; decoupling capacitor (0.1 µF) required within 5 mm for stable 104 MHz operation

Key Features

Feature	Design Value
Quad Peripheral Interface (QPI)	Reduces instruction overhead to 2 clocks per byte, enabling deterministic XIP execution without software polling
Erase/Program Suspend & Resume	Allows interrupting a 64KB block erase to service real-time interrupts, then resuming without data loss or timing penalty
JEDEC SFDP Register	Enables automatic host controller configuration of timing parameters, voltage thresholds, and command sets without hard-coded driver logic
64-bit Unique ID	Provides cryptographically verifiable device identity for secure boot, anti-counterfeiting, and firmware binding in regulated applications
Three 256-byte Security Registers	Supports encrypted key storage with OTP locking, preventing unauthorized firmware rollback or cloning in production environments
Continuous Read Mode	Permits sequential access across page boundaries with single instruction, eliminating 256-byte boundary stalls in audio/video streaming buffers

Applications

Industrial PLC Firmware Storage	Automotive ADAS Boot Memory
Use Scenario: Storing programmable logic controller firmware images and configuration databases in DIN-rail mounted controllers exposed to wide temperature swings. IC Role / Device Role / Timing Role: Non-volatile code storage with execute-in-place capability, directly mapped into ARM Cortex-M7 instruction bus via Quad SPI interface. Use Value: 4KB sector erase enables incremental firmware patching without full reflash; 20-year retention guarantees operation over equipment lifetime without maintenance.	Use Scenario: Holding boot code and sensor calibration data for camera-based lane departure warning systems in vehicles operating from −40°C to +85°C. IC Role / Device Role / Timing Role: Primary boot memory accessed by SoC ROM bootloader during cold start, requiring deterministic <100 ms initialization time. Use Value: 104 MHz Quad SPI clock and Continuous Read Mode reduce boot latency by 40% versus legacy parallel flash, meeting ASIL-B timing constraints.
Medical Infusion Pump UI	Smart Grid Meter Firmware
Use Scenario: Storing graphical user interface assets, safety-critical alarm logic, and audit logs in Class II medical devices requiring FDA 21 CFR Part 11 compliance. IC Role / Device Role / Timing Role: Secure firmware repository with write-protection enforced by both hardware (/WP pin) and software (BP bits), verified at each power cycle. Use Value: Three OTP-locked security registers store cryptographic keys for firmware signature verification, satisfying IEC 62304 traceability requirements.	Use Scenario: Hosting firmware, tariff tables, and communication stack binaries in ANSI C12.22-compliant electricity meters deployed in outdoor substations. IC Role / Device Role / Timing Role: Field-upgradable memory with dual write protection (hardware /WP + volatile/non-volatile BP bits) to prevent accidental corruption during OTA updates. Use Value: 100,000 erase/program cycles ensure >15 years of biannual firmware updates under utility-grade deployment conditions.

Industrial PLC Firmware Storage

Automotive ADAS Boot Memory

Use Scenario: Storing programmable logic controller firmware images and configuration databases in DIN-rail mounted controllers exposed to wide temperature swings.

IC Role / Device Role / Timing Role: Non-volatile code storage with execute-in-place capability, directly mapped into ARM Cortex-M7 instruction bus via Quad SPI interface.

Use Value: 4KB sector erase enables incremental firmware patching without full reflash; 20-year retention guarantees operation over equipment lifetime without maintenance.

Use Scenario: Holding boot code and sensor calibration data for camera-based lane departure warning systems in vehicles operating from −40°C to +85°C.

IC Role / Device Role / Timing Role: Primary boot memory accessed by SoC ROM bootloader during cold start, requiring deterministic <100 ms initialization time.

Use Value: 104 MHz Quad SPI clock and Continuous Read Mode reduce boot latency by 40% versus legacy parallel flash, meeting ASIL-B timing constraints.

Medical Infusion Pump UI

Smart Grid Meter Firmware

Use Scenario: Storing graphical user interface assets, safety-critical alarm logic, and audit logs in Class II medical devices requiring FDA 21 CFR Part 11 compliance.

IC Role / Device Role / Timing Role: Secure firmware repository with write-protection enforced by both hardware (/WP pin) and software (BP bits), verified at each power cycle.

Use Value: Three OTP-locked security registers store cryptographic keys for firmware signature verification, satisfying IEC 62304 traceability requirements.

Use Scenario: Hosting firmware, tariff tables, and communication stack binaries in ANSI C12.22-compliant electricity meters deployed in outdoor substations.

IC Role / Device Role / Timing Role: Field-upgradable memory with dual write protection (hardware /WP + volatile/non-volatile BP bits) to prevent accidental corruption during OTA updates.

Use Value: 100,000 erase/program cycles ensure >15 years of biannual firmware updates under utility-grade deployment conditions.

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
MX25L3233FZNI-10G	32 M-bit, 104 MHz max clock, SOIC-8 package, but lacks QPI mode and SFDP register	Requires fixed-timing driver implementation; unsuitable for auto-configuring hosts like NXP i.MX RT series	Select when QPI and SFDP are unnecessary and cost sensitivity outweighs future-proofing needs
S25FL132K0XMFI011	32 M-bit, 80 MHz max clock, supports XIP but no Octal Word Read or Erase Suspend	Lower bandwidth limits real-time audio buffering; no suspend/resume for time-critical interrupt handling	Select for legacy SPI-only designs where 50 MB/s throughput and background erase are not required

Compared with MX25L3233FZNI-10G and S25FL132K0XMFI011, the W25Q32FVSSIG TR provides higher bandwidth via QPI and Octal Word Read, deterministic XIP with Continuous Read Mode, and field-upgrade resilience through Erase Suspend-making it optimal for next-generation edge AI and safety-critical firmware storage.

Availability

W25Q32FVSSIG TR is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, medical infusion pump UI, smart grid meter firmware, and IoT gateway code shadowing requiring stable component supply across extended product lifecycles.

Supply support for W25Q32FVSSIG 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 manufacturer specializing in specialty DRAM, mobile DRAM, and serial flash memory solutions for embedded and industrial markets.

The W25Q series targets high-reliability code storage applications requiring XIP, fast read throughput, and robust security features-designed specifically for microcontroller-based systems where pin count, power, and firmware update flexibility are critical constraints.

FAQ

What is the function of pin 7 (/HOLD or /RESET) on the W25Q32FVSSIG TR in SOIC-8 package?

Pin 7 on the W25Q32FVSSIG TR serves as /HOLD in Standard/Dual SPI mode to pause ongoing transfers, or as /RESET when configured via the HOLD/RST bit in Status Register-1. When Quad SPI is enabled (QE=1), this pin becomes IO3 and the /HOLD or /RESET function is disabled. The W25Q32FVSSIG TR datasheet specifies that this dual-function behavior is exclusive to 8-pin packages; 16-pin SOIC variants provide dedicated /RESET.

Does the W25Q32FVSSIG TR support execute-in-place (XIP) operation, and what interface modes enable it?

Yes, the W25Q32FVSSIG TR supports true XIP operation using Continuous Read Mode with Fast Read Quad I/O (EBh) and QPI instructions. XIP is enabled in Quad SPI and QPI modes, where ≤8-clock instruction overhead and wrap-around addressing eliminate page-boundary stalls. The W25Q32FVSSIG TR achieves deterministic execution latency only when QE=1 and the host controller supports Quad I/O timing specifications per Section 9.6 of the datasheet.

How many erase cycles does the W25Q32FVSSIG TR guarantee, and how is endurance distributed across memory regions?

The W25Q32FVSSIG TR guarantees 100,000 program/erase cycles per sector, uniformly applied across all 1,024 × 4KB sectors. Endurance is not shared or pooled-the specification applies independently to each sector, allowing wear leveling algorithms to distribute updates across the full 4MB array. This guarantee is validated under JEDEC JESD22-A117 conditions and remains valid across the full −40°C to +85°C operating range specified for the W25Q32FVSSIG TR.

Can the W25Q32FVSSIG TR's /WP pin be used simultaneously with Quad SPI mode?

No-the /WP pin (pin 3) cannot be used for hardware write protection during Quad SPI operation. When the Quad Enable (QE) bit in Status Register-2 is set to 1, pin 3 is repurposed as IO2, disabling its /WP function. Hardware write protection is only available in Standard and Dual SPI modes. The W25Q32FVSSIG TR datasheet explicitly states that /WP and /HOLD become unavailable in Quad I/O mode, requiring reliance on software-based BP bits for memory protection.

What packaging and marking identify the W25Q32FVSSIG TR variant?

The W25Q32FVSSIG TR is supplied in 8-pin SOIC 208-mil package (Package Code SS), with top-side marking "W25Q32FV" followed by date code and traceability symbols. The "TR" suffix denotes tape-and-reel packaging (1,000 units per reel), and "IG" indicates industrial temperature grade (−40°C to +85°C). This exact marking and packaging configuration is validated in Winbond's Ordering Information table (Section 11.1) for the W25Q32FVSSIG TR part number.

W25Q32FVSSIG 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:: 50µs, 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-SOIC

W25Q32FVSSIG TR FAQ

1.How can I place an order for W25Q32FVSSIG TR through Aetrix?

Please submit a Request for Quotation (RFQ) for W25Q32FVSSIG 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 W25Q32FVSSIG TR reliable?

The price and inventory of W25Q32FVSSIG TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q32FVSSIG TR is usually 5 days.

3.What payment methods are accepted for W25Q32FVSSIG TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q32FVSSIG TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for W25Q32FVSSIG TR?

W25Q32FVSSIG TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your W25Q32FVSSIG 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 W25Q32FVSSIG TR?

For technical support, including W25Q32FVSSIG TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q32FVSSIG TR requirements.

6.How does Aetrix verify that W25Q32FVSSIG TR is sourced from the original manufacturer or authorized distributors?

All W25Q32FVSSIG 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 W25Q32FVSSIG TR meets industry standards.

7.What is the process for return or replacement of W25Q32FVSSIG TR?

All W25Q32FVSSIG TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q32FVSSIG 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 W25Q32FVSSIG TR part is unused and in its original packaging.

Return procedure for W25Q32FVSSIG TR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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