Winbond NOR 4MB SPI Flash Memory, 8-Pin SOIC, 104MHz, 2.3V - 3.6V, Surface Mount W25X40CLSNIG/TUBE

The Winbond W25X40CLSNIG/TUBE is a 4MB (32 Mbit) NOR Flash memory chip designed for high-performance embedded system storage. With a fast SPI (Serial Peripheral Interface), this device enables rapid access to non-volatile data, which is essential in a wide range of electronics including industrial automation, consumer electronics, and computing devices.

This flash memory chip delivers a maximum clock frequency of 104MHz, providing high-speed data transfer and efficient system performance. It is engineered to operate reliably over supply voltages between 2.3V and 3.6V, making it compatible with many modern logic levels and power domains.

Packaged in a standard 8-pin SOIC format, the device is ideal for compact PCBs where board space is at a premium. The organizational structure includes 512K words of 8 bits (512 k x 8) and provides 2,048 erasable pages of 256 bytes each, enabling granular write, read, and erase cycles. Uniform 4KB erasable sector architecture, along with 32KB and 64KB blocks, makes this flash memory versatile for both small-scale data storage and large block programming operations.

The W25X40CLSNIG/TUBE supports both single and dual SPI operation modes. Advanced features include hardware and software-based block protection, electronic ID access, and unique ID reading, enhancing device security and control. The device achieves active read currents as low as 1mA and standby currents down to 1μA, making it exceptionally power-efficient - a key advantage in battery-operated and low-power systems.

It is constructed for robust performance in extreme environments, with an operating temperature range from -40°C to +85°C, catering to typical industrial and automotive requirements. The memory supports fast data access with a typical random access time of 8ns, and page programming completes rapidly, ensuring both reliability and speed.

With its NOR cell technology, the Winbond W25X40CLSNIG/TUBE ensures data integrity and endurance, ideal for code storage and data logging applications. Typical application sectors include embedded system design, automotive electronics, industrial automation, and communications devices seeking compact, fast, and reliable non-volatile data storage solutions.

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