Overview
The W25Q256JVEIQ is a high-capacity flash memory chip manufactured by Winbond Electronics Corp. This 256Mbit Serial NOR Flash memory is part of the SpiFlash® series, known for its high-performance, low-power, and cost-effective serial flash solutions. The chip uses a serial interface, allowing communication with other devices via four wires: clock, data in, data out, and chip select. It operates at a high speed of 133 MHz and has low power consumption, making it suitable for applications requiring large data storage such as data logging, audio, video, and firmware updates.
Key Specifications
| Attribute | Value |
|---|---|
| Density | 256 Mbit |
| Memory Organization | 32M x 8 |
| Interface | SPI, Dual SPI, Quad SPI |
| Clock Frequency | 133 MHz |
| Voltage Supply | 2.7V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Package | 8-WSON (8x6 mm), 16-pin SOIC, 24-ball TFBGA |
| Write Cycle Time | 3 ms (word, page) |
| Security Features | Software and hardware write protection, one-time programmable regions, secure erase and lock, unique device ID |
Key Features
- High-speed operation up to 133 MHz.
- Low power consumption.
- Supports SPI, Dual SPI, and Quad SPI interfaces.
- Uniform 4KB sectors.
- Individual block/sector write protection.
- Programmable output driver strength.
- Fixed UID & OTP (One-Time Programmable) feature.
- Volatile and non-volatile status register.
- Small package size with exposed pad for better heat dissipation.
Applications
- Embedded Systems: Suitable for storing firmware or other data in embedded systems.
- Automotive Applications: Used in vehicle infotainment systems, engine control unit (ECU) firmware, and other automotive data storage needs.
- Industrial Control Systems: Stores firmware for programmable logic controllers (PLCs), industrial PCs, and other control equipment.
- Consumer Electronics: Ideal for digital cameras, MP3 players, smart TVs, and other consumer devices requiring large storage capacity.
- Networking and Communication Systems: Used in network equipment such as routers, switches, and base stations.
- Internet of Things (IoT): Suitable for smart home devices and industrial IoT sensors.
- Aerospace, Military, and Healthcare: Robust and reliable for high-stress environments.
Q & A
- What is the memory capacity of the W25Q256JVEIQ?
The W25Q256JVEIQ has a memory capacity of 256 Mbit, organized as 32M x 8.
- What is the operating voltage range of the W25Q256JVEIQ?
The operating voltage range is 2.7V ~ 3.6V.
- What are the supported interfaces for the W25Q256JVEIQ?
The chip supports SPI, Dual SPI, and Quad SPI interfaces.
- What is the maximum clock frequency of the W25Q256JVEIQ?
The maximum clock frequency is 133 MHz.
- What are the security features of the W25Q256JVEIQ?
The chip includes software and hardware write protection, one-time programmable regions, secure erase and lock, and a unique device ID.
- What are the typical applications of the W25Q256JVEIQ?
It is used in embedded systems, automotive applications, industrial control systems, consumer electronics, and networking and communication systems.
- What is the package type of the W25Q256JVEIQ?
The chip is available in 8-WSON (8x6 mm), 16-pin SOIC, and 24-ball TFBGA packages.
- What is the operating temperature range of the W25Q256JVEIQ?
The operating temperature range is -40°C ~ 85°C (TA).
- How does the W25Q256JVEIQ differ from the W25Q128FVSG?
The W25Q256JVEIQ has a higher capacity (256 Mbit vs 128 Mbit), a higher clock frequency (133 MHz vs 104 MHz), and supports Quad Peripheral Interface (QPI), which the W25Q128FVSG does not.
- Who is the manufacturer of the W25Q256JVEIQ?
The manufacturer is Winbond Electronics Corp., a leading global supplier of semiconductor memory solutions.
