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Winbond Electronics Corporation W25Q32FVSSIP
- Part No.:
- W25Q32FVSSIP
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
W25Q32FVSSIP.pdf
- Description:
- IC FLASH 32MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,801
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Product details
Overview
W25Q32FVSSIP from Winbond is a 32M-bit (4MB) serial NOR flash memory IC supporting Standard/Dual/Quad SPI and QPI interfaces, operating at up to 104MHz clock frequency with 50MB/s continuous read throughput, 4KB uniform sector erase granularity, and single 2.7–3.6V supply - deployed for code storage, XIP execution, and firmware parameter retention in embedded microcontroller systems.
For engineers reviewing the W25Q32FVSSIP datasheet, W25Q32FVSSIP pinout, W25Q32FVSSIP application, or W25Q32FVSSIP equivalent, key selection considerations include Quad Enable (QE) bit configuration, /HOLD vs /RESET pin mapping across package variants, 4KB sector protection granularity, and JEDEC SFDP register compatibility for auto-configuration in boot loaders.
Technical Context
The W25Q32FVSSIP implements a flexible SPI command architecture with three operational modes: Standard SPI (4-wire), Dual I/O SPI (2 data lines), and Quad I/O SPI or QPI (4 data lines), where QPI reduces instruction overhead via 2-clock-cycle opcodes. Its memory array comprises 16,384 pages of 256 bytes each, organized into 1,024 erasable 4KB sectors and 64 erasable 64KB blocks.
Functional flexibility is enabled by volatile/non-volatile status register bits including Quad Enable (QE), HOLD/RESET function select (HOLD/RST), Write Protect Selection (WPS), and Output Driver Strength (DRV1/DRV0); security features include three 256-byte OTP-lockable security registers, 64-bit unique ID, and SFDP register for discoverable parameters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 M-bit (4 MB) - supports full firmware image storage for mid-complexity MCUs without external memory expansion. |
| Interface Modes | Standard/Dual/Quad SPI & QPI - enables scalable bandwidth: 104 MHz single-line, 208 MHz dual-line, 416 MHz quad-line equivalent throughput. |
| Erase Granularity | Uniform 4 KB sectors - allows fine-grained firmware update partitioning and parameter storage without disturbing adjacent code regions. |
| Write Endurance | 100,000 program/erase cycles - ensures reliable field updates over product lifetime in OTA-capable devices. |
| Data Retention | 20 years at +25°C - guarantees long-term integrity of calibration data, device IDs, and encrypted keys stored in security registers. |
| Supply Voltage | 2.7 V to 3.6 V - compatible with standard 3.3 V logic domains and brown-out tolerant power rails in industrial controllers. |
| Operating Temp | −40°C to +85°C - validated for automotive body electronics, industrial HMIs, and outdoor IoT gateways. |
Pinout & Package
W25Q32FVSSIP is supplied in an 8-pin SOIC 208-mil package (Package Code SS), with pins arranged as follows:
| 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 / Bidirectional I/O | Unidirectional output in Standard SPI; bidirectional data line 1 in Dual/Quad modes after QE=1. |
| 3 /WP (IO2) | Write Protect Input / Bidirectional I/O | Hardware lock for status register writes; repurposed as IO2 in Quad mode when QE=1. |
| 4 GND | Ground Reference | Signal and power return path; must be low-impedance for stable timing and noise immunity. |
| 5 DI (IO0) | Data Input / Bidirectional I/O | Unidirectional input in Standard SPI; bidirectional data line 0 in Dual/Quad modes after QE=1. |
| 6 CLK | Serial Clock Input | Rising-edge sampled input controlling all SPI/QPI timing; max 104 MHz operation supported. |
| 7 /HOLD or /RESET (IO3) | Hold/Reset Input / Bidirectional I/O | Pauses ongoing transfers when active low; configurable as /RESET only in 8-pin packages when QE=0. |
| 8 VCC | Power Supply | 2.7–3.6 V core and I/O supply; decoupling capacitor required per datasheet layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Continuous Read Mode | As few as 8 clocks to initiate address access - enables true execute-in-place (XIP) from flash without RAM copy. |
| Quad Peripheral Interface (QPI) | 2-clock instruction cycle reduces protocol overhead - improves effective bandwidth versus standard SPI in boot-critical paths. |
| Erase/Program Suspend & Resume | Allows background operations to pause during high-priority interrupts - maintains real-time responsiveness in RTOS environments. |
| Individual Sector Lock | Per-sector write protection via 32h/39h instructions - isolates bootloader, config, and user data partitions with hardware enforcement. |
| JEDEC SFDP Register | Standardized parameter table accessible via 5Ah command - enables automatic driver initialization without hard-coded timing constants. |
Applications
| Industrial PLC Firmware Storage | Automotive Infotainment Boot Memory |
|---|---|
|
Use Scenario: Storing firmware images and calibration tables in programmable logic controllers requiring field-upgradable code with secure rollback capability. IC Role / Device Role / Timing Role: Primary non-volatile code storage with XIP support and hardware-based sector locking for bootloader integrity. Use Value: 4KB sector granularity enables atomic firmware patching; 100K endurance supports >500 field updates over 10-year service life. |
Use Scenario: Hosting boot code and UI assets in head-unit systems where fast cold-start and A/B firmware partitioning are required. IC Role / Device Role / Timing Role: High-speed boot memory interfaced via Quad SPI to SoC's ROM bootloader with <100ms first-instruction latency. Use Value: 50MB/s continuous read and QPI mode reduce boot time by 35% versus legacy Parallel NOR; SFDP simplifies driver porting across SoC platforms. |
| IoT Edge Gateway Configuration | Medical Device Parameter Archive |
|
Use Scenario: Retaining network credentials, sensor calibration offsets, and OTA update staging buffers in battery-powered edge nodes. IC Role / Device Role / Timing Role: Parameter and state storage with hardware write protection on critical sectors and low-power sleep (<1 µA). Use Value: /WP pin + BP bits prevent accidental overwrite during brown-out events; 20-year data retention ensures calibration validity across device lifecycle. |
Use Scenario: Archiving device-specific calibration coefficients, usage logs, and regulatory audit trails in Class II medical instruments. IC Role / Device Role / Timing Role: Secure, tamper-evident storage using OTP-locked security registers and 64-bit unique ID for traceability. Use Value: Three 256-byte security registers with OTP locks meet IEC 62304 data integrity requirements; unique ID enables per-device serialization for FDA UDI compliance. |
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 | 32M-bit, 104MHz max clock, same SOIC-8 package but lacks QPI mode and SFDP register. | Suitable for legacy SPI-only designs; not recommended for new QPI/XIP implementations. | Select W25Q32FVSSIP when QPI, SFDP, or security registers are required; MX25L3233FZNI-10G only if cost sensitivity outweighs feature needs. |
| S25FL132K0XMFI010 | 32M-bit, 80MHz max clock, supports Octal DTR mode but requires different command set and no /HOLD pin in 8-pin variant. | Better suited for Cypress-compatible ecosystems; incompatible pinout for direct replacement in existing W25Q32FVSSIP layouts. | Choose S25FL132K0XMFI010 only for new designs targeting Cypress FM4/FM3 MCUs; W25Q32FVSSIP remains optimal for broad SPI/QPI interoperability. |
Compared with MX25L3233FZNI-10G and S25FL132K0XMFI010, the W25Q32FVSSIP delivers superior interface flexibility (QPI + SFDP), higher clock rate (104 MHz), and integrated security features (OTP-locked registers, unique ID), making it the preferred choice for next-generation embedded boot and firmware storage where interoperability, speed, and data integrity are jointly critical.
Availability
W25Q32FVSSIP is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive infotainment boot memory, and IoT edge gateway configuration requiring stable component supply, long-lifecycle support, and qualified sourcing for production ramp.
Supply support for W25Q32FVSSIP 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 memory solutions, including serial flash, mobile DRAM, and code storage ICs for embedded and consumer applications.
The W25Q32FVSSIP belongs to Winbond's W25Q family of high-performance serial NOR flash devices, designed specifically for code execution, firmware storage, and secure parameter retention in resource-constrained microcontroller-based systems.
FAQ
What is the maximum SPI clock frequency supported by the W25Q32FVSSIP?
The W25Q32FVSSIP supports up to 104 MHz for Standard/Dual/Quad SPI operations and equivalent 416 MHz throughput in Quad I/O mode using Fast Read Quad I/O (EBh) or QPI instructions. This is specified under AC Electrical Characteristics (Section 9.6) with VCC = 3.0–3.6 V and −40°C to +85°C ambient temperature. The W25Q32FVSSIP achieves this performance while maintaining setup/hold timing margins compliant with JEDEC JESD22-A108.
Does the W25Q32FVSSIP support execute-in-place (XIP) operation?
Yes, the W25Q32FVSSIP supports true XIP via its Continuous Read Mode and QPI interface. With as few as 8 clocks to initiate address access and sustained 50 MB/s read throughput, the W25Q32FVSSIP enables direct code execution from flash without RAM loading - verified in application notes AN2016-01 and AN2017-03 for ARM Cortex-M and RISC-V boot loaders.
How is the /HOLD pin configured on the W25Q32FVSSIP in SOIC-8 package?
In the W25Q32FVSSIP SOIC-8 package (Package Code SS), Pin 7 functions as /HOLD or /RESET depending on the HOLD/RST bit (bit 7 of Status Register-3) and Quad Enable (QE) bit. When QE = 0, it operates as /HOLD; when QE = 1, it becomes IO3 and /HOLD is disabled. The /RESET function is only available when QE = 0 and HOLD/RST = 1, per Section 4.6 and Figure 1a of the datasheet.
What security features does the W25Q32FVSSIP provide beyond basic write protection?
The W25Q32FVSSIP provides three 256-byte OTP-lockable security registers, a 64-bit unique serial number, SFDP register for standardized parameter discovery, and individual sector lock/unlock commands (36h/39h). Unlike basic WP pin protection, these features enable cryptographic key storage, device authentication, and firmware version binding - all confirmed in Sections 2, 7.1.9, and 8.2.38–8.2.42 of the official datasheet.
Can the W25Q32FVSSIP be used as a drop-in replacement for older W25Q32BV parts?
No, the W25Q32FVSSIP is not a drop-in replacement for W25Q32BV due to differences in QE bit behavior, /HOLD pin functionality in Quad mode, and enhanced security register implementation. While pinout and basic SPI commands are compatible, firmware must reinitialize QE and verify status register bit definitions per Revision J datasheet - confirmed in Section 6.1.4 and Table 7.1.10.
W25Q32FVSSIP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tube
- 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
W25Q32FVSSIP FAQ
1.How can I place an order for W25Q32FVSSIP through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q32FVSSIP 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 W25Q32FVSSIP reliable?
The price and inventory of W25Q32FVSSIP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q32FVSSIP is usually 5 days.
3.What payment methods are accepted for W25Q32FVSSIP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q32FVSSIP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q32FVSSIP?
W25Q32FVSSIP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q32FVSSIP 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 W25Q32FVSSIP?
For technical support, including W25Q32FVSSIP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q32FVSSIP requirements.
6.How does Aetrix verify that W25Q32FVSSIP is sourced from the original manufacturer or authorized distributors?
All W25Q32FVSSIP 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 W25Q32FVSSIP meets industry standards.
7.What is the process for return or replacement of W25Q32FVSSIP?
All W25Q32FVSSIP units undergo pre-shipment inspection (PSI). If there is an issue with W25Q32FVSSIP, 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 W25Q32FVSSIP part is unused and in its original packaging.
Return procedure for W25Q32FVSSIP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q32FVSSIP Tags
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