The W25X40BLIG is a 4M-bit Serial Flash memory device, part of the W25X family from Winbond Electronics. It offers high performance and reliability in a compact package. This memory device operates from a single 2.7V to 3.6V power supply and supports standard SPI (Serial Peripheral Interface), as well as Dual and Quad SPI, enabling high-speed clock frequencies. It also supports JEDEC standard manufacturer and device ID.

Applications

• Embedded systems for storing boot code
• Consumer electronics for storing firmware
• Data logging applications
• Storage for configuration data in industrial control systems
• Networking equipment for storing boot code and configuration files

Features

• 4M-bit (512K-byte) Serial Flash memory
• SPI Interface: Supports Single, Dual, and Quad SPI modes
• High-Speed Clock Frequency: Up to 80 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 ideal for space-constrained applications.
• 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 various microcontrollers and processors.

Additional Details

The W25X40BLIG 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, blocks and pages to facilitate erasing/programming flexibility. The device offers both hardware and software write protection to prevent accidental data corruption. It also features 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.