The CAT24C21WI is a high-performance EEPROM (Electrically Erasable Programmable Read-Only Memory) device from ON Semiconductor, designed for a wide range of applications requiring reliable data storage and retrieval. This memory chip features a 2-Kb (256 x 8) memory size, making it suitable for storing configuration settings, calibration data, and small application parameters.

Key Features

• Memory Size: 2-Kilobits (256 x 8)
• Interface: I²C (2-wire serial interface), supporting standard and fast I²C protocol
• Supply Voltage: Operates from 2.5V to 5.5V, making it versatile for both low and standard voltage applications
• Write Cycle Time: 5 ms write cycle time for efficient data handling
• Endurance: 1 million write cycles, ensuring long-term reliability
• Data Retention: 100 years of data retention, providing a stable storage solution over an extended period
• Packaging: Available in an industry-standard 8-pin SOIC package, suitable for surface mount technology (SMT)
• Temperature Range: Industrial temperature range from -40°C to +85°C, allowing operation in harsh environments

Applications

The CAT24C21WI is ideal for a variety of applications that require low-power and reliable non-volatile memory. It is commonly used in:

• Portable electronic devices
• Industrial and medical equipment
• Automotive systems
• Consumer electronics
• Telecommunication infrastructure

Advantages

The CAT24C21WI offers several advantages that make it a preferred choice for designers and engineers. Its low-power consumption extends battery life in portable devices, while its small form factor enables it to fit into space-constrained designs. The robust endurance and data retention characteristics ensure data integrity over the product's lifespan. Additionally, the simple I²C interface facilitates easy integration into existing designs, reducing development time and complexity.

Overall, the ON Semiconductor CAT24C21WI provides a reliable and efficient solution for applications requiring non-volatile memory storage, combining performance with durability to meet the needs of today's advanced electronic systems.