Overview
The W25Q64JVSSIQ is a 64-Mbit Serial NOR Flash memory designed for code storage and data retention in embedded systems. It is widely used in industrial controllers, consumer electronics, and networking equipment, where high read performance, low power consumption, and reliable non-volatile storage are required.
Core Parameters

| Parameter | Specification |
|---|---|
| Memory Density | 64 Mbit (8 MB) |
| Interface | SPI / Dual SPI / Quad SPI |
| Operating Voltage | 2.3 V – 3.6 V |
| Max Clock Frequency | Up to 133 MHz |
| Erase Granularity | 4 KB sectors, 32 KB / 64 KB blocks |
| Program / Erase Endurance | ≥ 100,000 cycles |
| Data Retention | Up to 20 years |
| Package Type | SOIC-8 (SSIQ) |
| Operating Temperature | –40°C to +85°C |
These parameters make the device suitable for firmware and configuration storage, especially where limited board space and low-power operation are critical.
Features
Key features of the W25Q64JVSSIQ include:
- Support for Standard SPI, Dual SPI, and Quad SPI interfaces
- High-speed read performance with continuous and burst read modes
- Low power consumption with deep power-down support
- Flexible erase and program architecture for efficient memory management
- Multiple write protection mechanisms, including hardware and software protection
- Uniform sector architecture for simplified firmware design
- Designed for execute-in-place (XIP) applications
These features enable stable and efficient non-volatile storage across a wide range of embedded platforms.
Typical Application Scenarios
The W25Q64JVSSIQ is commonly used in:
- Embedded MCU and SoC systems for firmware and boot code storage
- Industrial automation equipment for configuration and parameter storage
- Consumer electronics such as smart appliances and IoT devices
- Networking devices including routers, switches, and gateways
- Display modules and HMI systems requiring fast read access
Its balance of capacity, speed, and reliability makes it suitable for long-term deployment in demanding environments.
Both the W25Q64JVSSIQ and the W25Q32JVSSIQ are part of Winbond’s W25QJV Serial NOR Flash family, sharing the same SPI instruction set, electrical characteristics, and protection features. This consistency enables developers to reuse firmware drivers and design practices when working across both devices.
Performance Comparison
Within the category of 64-Mbit Serial NOR Flash memories, the W25Q64JVSSIQ offers:
- High SPI clock frequency support for fast data access
- Multiple I/O modes to optimize throughput
- Fine-grained erase options to reduce unnecessary memory wear
- Stable endurance and long data retention for embedded firmware
These characteristics align well with modern embedded system requirements that prioritize performance consistency and reliability.
Conclusion
The W25Q64JVSSIQ provides a dependable Serial NOR Flash solution for embedded designs requiring stable firmware storage, fast read access, and low power operation. With its flexible SPI interface options, robust protection features, and long endurance, it is well suited for industrial, consumer, and networking applications.
Manufacturer Profile

Winbond Electronics Corporation is a global semiconductor manufacturer specializing in memory solutions, including Serial NOR Flash, NAND Flash, and specialty memory products. Winbond is recognized for its strong focus on embedded and industrial markets, delivering memory devices with long product lifecycles, stable supply, and proven reliability.
FAQ
1. What is the main function of the W25Q64JVSSIQ?
It is used to store firmware, boot code, and non-volatile data in embedded systems and electronic devices.
2. Which interfaces are supported by the W25Q64JVSSIQ?
The device supports SPI, Dual SPI, and Quad SPI interfaces, allowing flexible performance and design options.
3. Is the W25Q64JVSSIQ suitable for industrial environments?
Yes. It supports industrial temperature ranges and offers high endurance and long data retention, making it suitable for industrial applications.
4. How can I verify the quality of the W25Q64JVSSIQ mentioned in this blog?
7SEtronic follows a complete and standardized quality inspection SOP, including label verification, visual inspection, X-RAY analysis, and other testing procedures, which can be referenced to ensure product authenticity and quality.
For more information and to review our available inventory, please contact our team for detailed pricing, current stock levels, and any additional technical support you may need.
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