25LC256X-E/ST

The 25LC256X-E/ST is a family of SPI-based EEPROMs in an 8-pin SOIC package. It offers 16K, 32K, and 64K of densities and operates with a supply voltage range of 3.0 V to 3.6 V. This device feature fast page write times, internal write protection, and page erase capabilities. The 25LC256X-E/ST is ideal for storing information, image and firmware.

The 25LC256X-E/ST can be used in a variety of applications and industries, including industrial automation, consumer products, automotive, wearable and medical devices, and automotive. Applications can include data logging, remote monitoring, smart cities, life safety/security systems, and automation and control of consumer electronics. The 25LC256X-E/ST can be used to store parameters for various battery, lighting and temperature applications, as well as providing a storage solution for consumer products.

Features

• Operating voltage range of 3.0V to 3.6V
• Low power consumption
• High endurance cycles
• Page erase capabilities
• Page write up to 16 bytes
• JEDECstandard pinout
• Organized to offer 16K, 32K, and 64K memory densities

Working Principle

The 25LC256X-E/ST operates in a native Serial Peripheral Interface (SPI) mode. This version of the SPI EEPROM is organized into four pages of 4096 bits each, which allow page erase and write operations up to 16 bytes.

The 25LC256X-E/ST is designed for single-master operation. The device can communicate with the master using eight data inputs/outputs (1-8). All communication is initiated by a write to the chip select line. The write can either be a data-write operation (a write operation) or a data-read operation (a read operation). Any write (read) operation will terminate the operation when the Data/Not Ready line is high.

The number of write cycles to a given address is determined by the size of the data. When data write or page erase is performed, the data stored in the page is protected by an internal write protection register. In addition, the device offers a write protected zone feature which will prevent any inadvertent write/page erase operations when the protected zone is enabled.

Typical Applications

• Automatic Meter Reading
• Retail Point of Sale Systems
• Smartcards
• Bank cards
• Industrial Process Monitoring and Control
• Robotics and CNC controls
• Intelligent applications

The 25LC256X-E/ST has a wide range of applications in a variety of industries. This type of EEPROM is an ideal solution for developing low power and low cost memory solutions. It offers fast page write times, internal write protection, and page erase capabilities making it the perfect device for storing image and firmware data.