The X25097SI is a CMOS Serial EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by Xicor Inc. (now part of Renesas Electronics). It is designed for storing small amounts of data that need to be non-volatile, meaning they retain information even when power is removed. This memory chip is commonly used in applications where configuration settings, calibration data, or other persistent information must be stored.

Applications

• Storage of configuration settings in electronic devices
• Calibration data storage in instruments
• Serial number storage
• User preference storage in consumer electronics
• Storage of security codes or passwords

Features

• 256 x 8 bit (2048 bits) serial EEPROM
• Serial Peripheral Interface (SPI) compatible
• Self-timed write cycle
• Low power consumption
• High reliability
• Data retention: >100 years
• Write endurance: >1,000,000 cycles

Benefits

• Non-volatile storage: Retains data even when power is removed, ensuring that important information is not lost.
• SPI interface: Simple and easy to interface with microcontrollers and other digital devices.
• Low power consumption: Suitable for battery-powered applications and energy-efficient designs.
• High reliability: Ensures data integrity and long-term storage.
• Small footprint: Available in small packages, saving board space.

Technical Specifications

The X25097SI operates with a supply voltage range of 4.5V to 5.5V. It supports the SPI serial interface, allowing for easy communication with microcontrollers. The write cycle time is typically a few milliseconds. The device is available in various packages, including SOIC and TSSOP. The operating temperature range is typically from -40°C to +85°C.

The memory array is organized as 256 bytes, each containing 8 bits of data. The device supports page write operations, allowing for writing multiple bytes at once. The data retention is specified to be greater than 100 years, ensuring long-term data storage. The write endurance is specified to be greater than 1,000,000 cycles, allowing for frequent data updates.