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Winbond Electronics Corporation W25Q32JWSSIM
- Part No.:
- W25Q32JWSSIM
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
W25Q32JWSSIM.pdf
- Description:
- IC FLASH 32MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,244
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Product details
Overview
W25Q32JWSSIM from Winbond is a 1.8V, 32M-bit (4MB) serial NOR flash memory with Dual/Quad SPI, QPI and DTR interfaces, organized as 16,384 × 256-byte pages, supporting 4KB sector, 32KB/64KB block and chip erase, and used for code execution (XIP), firmware storage, and parameter retention in space-constrained embedded systems.
For engineers reviewing the W25Q32JWSSIM datasheet, W25Q32JWSSIM pinout, W25Q32JWSSIM application, or W25Q32JWSSIM equivalent, key selection considerations include 133MHz Quad I/O clock support, hardware /WP and /HOLD pins, JEDEC ID/SFDP register compliance, 100K program-erase cycles, and 20-year data retention at +85°C.
Technical Context
The W25Q32JWSSIM implements a flexible SPI command architecture supporting Standard (4-wire), Dual (2 I/O), Quad (4 I/O), and QPI (6-wire) modes, with DTR read capability enabling double-data-rate transfers. Its status register includes volatile/non-volatile BP2–BP0, TB, SEC, CMP, SRP, QE, and DRV0/DRV1 bits for granular protection and drive strength control.
It features dual-function pins (/WP and /HOLD become IO2/IO3 when QE=1), supports software reset (66h+99h) and hardware reset (dedicated /RESET on TFBGA/WLCSP), and integrates three 256-byte one-time-programmable security registers, 64-bit unique ID, and SFDP v1.6 for discoverable parameters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 M-bit (4 MB), organized as 16,384 × 256-byte programmable pages |
| Supply Voltage | 1.7 V to 1.95 V - enables low-power operation in battery-backed or energy-efficient systems |
| Max Clock Frequency | 133 MHz Quad I/O SPI - delivers up to 532 Mbps effective throughput (133 MHz × 4) |
| Erase Granularity | Uniform 4 KB sectors (1,024 total), 32 KB blocks (128), 64 KB blocks (64) - supports fine-grained firmware partitioning |
| Endurance & Retention | 100,000 program/erase cycles; >20 years data retention at +85°C - suitable for field-upgradable firmware |
| Interface Modes | Standard SPI, Dual SPI, Quad SPI, QPI, and DTR Read - enables backward compatibility and performance scaling |
| Security Features | Three 256-byte OTP security registers, 64-bit unique ID, SFDP v1.6, and configurable top/bottom/complement protection - meets secure boot and anti-cloning requirements |
Pinout & Package
W25Q32JWSSIM is supplied in an 8-pin SOIC 208-mil package (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 functions are mode-dependent: /WP and /HOLD are active only in Standard/Dual SPI; in Quad SPI (QE=1), pins 3 and 7 serve as IO2 and IO3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS (Pin 1) | Chip Select Input | Active-low enable: high = device deselected (high-Z outputs, standby current); low = device selected and responsive to commands |
| DO / IO1 (Pin 2) | Data Output / Bidirectional I/O | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad SPI/QPI - carries read data or instruction responses |
| /WP / IO2 (Pin 3) | Write Protect Input / Bidirectional I/O | Hardware lock for Status Register writes when active low; repurposed as IO2 in Quad SPI mode (QE=1) |
| GND (Pin 4) | Ground Reference | Primary return path for VCC and all I/O signals; must be low-impedance for stable timing and noise immunity |
| DI / IO0 (Pin 5) | Data Input / Bidirectional I/O | Unidirectional input in Standard SPI; bidirectional I/O in Dual/Quad SPI/QPI - carries instructions, addresses, and write data |
| CLK (Pin 6) | Serial Clock Input | Edge-triggered timing reference for all SPI/QPI operations; supports Mode 0 and Mode 3; max 133 MHz in Quad I/O |
| /HOLD or /RESET / IO3 (Pin 7) | Hold or Reset Input / Bidirectional I/O | Pauses ongoing read/write when low (active hold); resets device when pulsed (if configured); becomes IO3 in Quad SPI (QE=1) |
| VCC (Pin 8) | Power Supply | 1.7–1.95 V supply; powers core logic, charge pumps, and I/O buffers; requires local 100 nF decoupling |
Key Features
| Feature | Design Value |
|---|---|
| Quad Peripheral Interface (QPI) | Reduces instruction overhead by encoding commands/addresses/data in 4-bit nibbles - enables true XIP with lower CPU load vs. standard SPI |
| Erase/Program Suspend & Resume | Allows interruption of long erase/program operations to service higher-priority reads - critical for real-time firmware update scenarios |
| Configurable Drive Strength (DRV1/DRV0) | Four selectable output drive levels - optimizes signal integrity and EMI across varying trace lengths and loads without external termination |
| Continuous Read with Wrap | Eliminates address counter overhead via 8/16/32/64-byte wrap - achieves sustained 66 MB/s throughput for sequential code fetch |
| Power-down Current | <0.1 µA typical - extends battery life in always-on IoT nodes and wearable devices during idle periods |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
|
Use Scenario: Storing boot firmware and configuration tables for programmable logic controllers operating in harsh industrial environments (-40°C to +85°C). IC Role / Device Role / Timing Role: Primary non-volatile code storage with XIP-capable Quad SPI interface, delivering deterministic boot latency under EMC stress. Use Value: 4KB sector erase enables incremental firmware patching without full reflash; 100K endurance supports decades of field updates. |
Use Scenario: Holding safety-critical boot code and sensor calibration data for automotive camera/radar modules requiring AEC-Q100 Grade 3 compliance. IC Role / Device Role / Timing Role: Secure boot memory with 64-bit unique ID and OTP security registers, interfacing directly to SoC via QPI for fast, authenticated startup. Use Value: SFDP register allows automatic driver configuration; top/bottom protection prevents accidental overwrite of bootloader region. |
| Medical Wearable Data Logger | Smart Home Gateway OTA Storage |
|
Use Scenario: Capturing and retaining patient vital sign history in compact, battery-powered wearable monitors with multi-year operational life. IC Role / Device Role / Timing Role: Parameter and event log storage with low-power <0.1 µA deep-sleep mode and robust 20-year data retention at elevated temperature. Use Value: Uniform 4KB sectors allow efficient wear-leveling across small data buffers; /WP pin provides hardware lock against runtime corruption. |
Use Scenario: Hosting over-the-air (OTA) firmware images and rollback partitions in residential Wi-Fi gateways with constrained PCB area. IC Role / Device Role / Timing Role: High-density (4MB) firmware image repository using DTR Fast Read (0Dh) to accelerate download verification and installation. Use Value: 133 MHz Quad I/O enables sub-second firmware validation; security registers store cryptographic keys for signed image verification. |
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 |
|---|---|---|---|
| MX25L3233FZUI-10G | 32 M-bit, 1.65–2.0 V supply, max 104 MHz Quad SPI, no DTR support, lacks SFDP v1.6 and security registers | Suitable for cost-sensitive consumer electronics where DTR and advanced security are not required | Select if legacy SPI controller compatibility and lower unit cost outweigh need for DTR throughput and secure boot features |
| S25FL132K0XMFI010 | 32 M-bit, 2.7–3.6 V supply, max 80 MHz Quad SPI, supports HyperBus but not QPI/DTR, includes ECC and sector lockdown | Targeted at industrial HMIs and networking equipment needing wider voltage range and built-in error correction | Choose only for 3V systems requiring ECC; incompatible with 1.8V designs and W25Q32JWSSIM's QPI/DTR performance profile |
Compared with MX25L3233FZUI-10G and S25FL132K0XMFI010, the W25Q32JWSSIM uniquely combines 1.8V operation, 133 MHz Quad I/O with DTR, QPI mode, SFDP v1.6, and OTP security registers - making it optimal for next-generation ultra-low-power, secure, and high-throughput embedded boot and firmware storage.
Availability
W25Q32JWSSIM is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, and medical wearable data logging requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.
Supply support for W25Q32JWSSIM 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 computing, communications, and consumer markets.
The W25Q32JW series is part of Winbond's high-performance SpiFlash family, designed specifically for embedded systems demanding fast XIP execution, robust security, and ultra-low power consumption in compact form factors.
FAQ
What is the operating voltage range for the W25Q32JWSSIM?
The W25Q32JWSSIM operates from 1.7 V to 1.95 V. This narrow 1.8V nominal range ensures compatibility with modern low-power microcontrollers and SoCs while maintaining sufficient noise margin. Operation outside this range may cause unreliable read/write behavior or damage the device. The W25Q32JWSSIM does not support 3.3V or dual-voltage operation.
Does the W25Q32JWSSIM support execute-in-place (XIP) functionality?
Yes, the W25Q32JWSSIM supports true XIP operation via its Quad SPI and QPI interfaces, allowing a host processor to execute code directly from flash without copying to RAM. This is enabled by fast continuous read with wrap and low-latency instruction decoding. The W25Q32JWSSIM's 133 MHz Quad I/O clock and DTR capability further reduce instruction fetch latency compared to standard SPI.
How many program-erase cycles does the W25Q32JWSSIM guarantee?
The W25Q32JWSSIM guarantees a minimum of 100,000 program-erase cycles per sector. This endurance rating applies to all 4KB sectors across the full 4MB array and is validated under standard operating conditions (1.7–1.95 V, -40°C to +85°C). Endurance remains valid even with mixed-sector usage patterns due to uniform erase architecture.
What package type is used for the W25Q32JWSSIM part number?
The W25Q32JWSSIM uses an 8-pin SOIC 208-mil package (Package Code SS), with standard gull-wing leads and 1.27 mm pitch. This through-hole-compatible surface-mount package is widely supported in automated assembly and offers reliable thermal and mechanical performance for industrial and automotive applications.
Can the /WP and /HOLD pins be used simultaneously with Quad SPI mode on the W25Q32JWSSIM?
No. When the Quad Enable (QE) bit in Status Register-2 is set to '1', pins 3 (/WP) and 7 (/HOLD or /RESET) are reassigned as IO2 and IO3 respectively for Quad SPI communication. Hardware write protection and hold functionality are disabled in this mode. To retain /WP or /HOLD, the device must operate in Standard or Dual SPI mode (QE = 0).
W25Q32JWSSIM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- 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, DTR
- Clock Frequency:
- 133 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- 6 ns
- Voltage - Supply:
- 1.7V ~ 1.95V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
W25Q32JWSSIM FAQ
1.How can I place an order for W25Q32JWSSIM through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q32JWSSIM 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 W25Q32JWSSIM reliable?
The price and inventory of W25Q32JWSSIM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q32JWSSIM is usually 5 days.
3.What payment methods are accepted for W25Q32JWSSIM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q32JWSSIM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q32JWSSIM?
W25Q32JWSSIM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q32JWSSIM 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 W25Q32JWSSIM?
For technical support, including W25Q32JWSSIM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q32JWSSIM requirements.
6.How does Aetrix verify that W25Q32JWSSIM is sourced from the original manufacturer or authorized distributors?
All W25Q32JWSSIM 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 W25Q32JWSSIM meets industry standards.
7.What is the process for return or replacement of W25Q32JWSSIM?
All W25Q32JWSSIM units undergo pre-shipment inspection (PSI). If there is an issue with W25Q32JWSSIM, 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 W25Q32JWSSIM part is unused and in its original packaging.
Return procedure for W25Q32JWSSIM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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