The 24LC21A1-I/SN is a high-performance, serial Electrically Erasable Programmable Read-Only Memory (EEPROM) device from Microchip Technology. It is designed to provide a reliable and convenient way to store data in a wide range of electronic applications. This EEPROM features a 1 Kbit memory size and operates on a standard serial I²C bus interface, ensuring easy integration into your existing designs.

Key Features

• Memory Size: 1 Kbit (128 x 8)
• Interface Type: I²C (2-Wire)
• Operating Voltage: 2.5V to 5.5V, accommodating a variety of system voltage levels
• Speed: Supports standard I²C bus speeds up to 400 kHz
• Temperature Range: Industrial grade with an operating temperature range of -40°C to +85°C
• Packaging: Available in an 8-pin SOIC (SN) package, suitable for surface-mount technology (SMT)
• Write Protect: Includes a hardware write protect feature for data security
• Endurance: High reliability with a write endurance of 1 million cycles and data retention of over 200 years
• Lead-Free: Compliant with RoHS directives, making it suitable for use in environmentally sensitive applications

Applications

The 24LC21A1-I/SN is versatile and can be used in a variety of applications, including:

• Consumer electronics
• Industrial control systems
• Medical devices
• Automotive systems
• Smart cards
• Portable devices

Quality and Support

Microchip Technology is known for its commitment to quality and long-term reliability. The 24LC21A1-I/SN EEPROM is backed by Microchip's strong technical support and warranty. Furthermore, Microchip provides comprehensive documentation and design resources to assist developers in integrating this memory device into their projects with ease.