The W25X40CLSIG is a 4M-bit Serial Flash memory produced by Winbond Electronics. It is designed for applications that require non-volatile storage with a focus on performance and reliability. This device operates from a single 2.7V to 3.6V power supply and supports standard SPI (Serial Peripheral Interface), Dual SPI, and Quad SPI interfaces, enabling flexible and high-speed data transfer.

Applications

• Storage of boot code in embedded systems
• Firmware storage in consumer electronic devices
• Data logging applications in various industries
• Storage for configuration data in networking equipment
• Portable devices for application code and data storage

Features

• 4M-bit (512K-byte) Serial Flash memory
• SPI Interface: Supports Standard, Dual, and Quad SPI modes
• High-Speed Clock Frequency: Up to 104 MHz
• Low Power Consumption: Active, Standby, and Power-Down modes
• Write Protection: Hardware and Software write protection features
• Small Package Options: SOIC, VSOP, WSON
• JEDEC Standard Manufacturer and Device ID

Benefits

• Space-efficient: Compact package design is suitable for small form-factor devices.
• High Performance: Fast clock speeds allow for quick data access and execution.
• Reliable Data Storage: Robust write protection features ensure data integrity.
• Low Power Operation: Extends battery life in portable applications.
• Versatile Interface: Supports multiple SPI modes for flexible integration with different controllers.

Additional Details

The W25X40CLSIG operates from a single 2.7V to 3.6V power supply. It is available in various package options, including SOIC, VSOP, and WSON. The device supports standard SPI, Dual SPI, and Quad SPI operation, allowing for flexible data transfer rates. The memory array is organized into sectors and blocks to facilitate erasing/programming flexibility. It features both hardware and software write protection to prevent accidental data corruption. The device incorporates a JEDEC standard manufacturer and device ID, simplifying device identification during system initialization. The typical endurance is 100,000 program/erase cycles per sector, providing long-term reliability. Data retention is specified as a minimum of 20 years.