Microchip Technology

24LC21/P  

Memory ICs Products

24LC21/P Description

The 24LC21/P is a 1Kbit (128 x 8) EEPROM memory IC from Microchip Technology, designed for reliable data storage in various electronic systems. It operates over a wide voltage range of 2.5V to 5.5V and features an I2C interface for easy integration with microcontrollers and other digital systems. With a clock frequency of 400 kHz, the 24LC21/P offers fast data access times of 900 ns, making it suitable for applications requiring quick read and write operations.

24LC21/P Features

• Technology: EEPROM (Electrically Erasable Programmable Read-Only Memory) for non-volatile data storage.
• Memory Organization: 128 x 8 bits, providing 1Kbit of storage capacity.
• Memory Interface: I2C, allowing for easy communication with microcontrollers and other digital systems.
• Clock Frequency: 400 kHz for fast data transfer rates.
• Access Time: 900 ns, ensuring quick read and write operations.
• Voltage - Supply: 2.5V to 5.5V, supporting a wide range of power supply options.
• Write Cycle Time: 10ms for word and page writes, allowing for efficient data updates.
• Operating Temperature: 0°C to 70°C (TA), making it suitable for various environmental conditions.
• RoHS Status: ROHS3 Compliant, ensuring environmental friendliness.
• REACH Status: REACH Unaffected, adhering to European chemical regulations.
• Moisture Sensitivity Level (MSL): 1 (Unlimited), indicating no special precautions are needed for handling.
• Mounting Type: Through Hole, providing a secure and reliable connection to the PCB.
• Package: Tube
• Product Status: Active

24LC21/P Applications

The 24LC21/P is ideal for applications that require non-volatile data storage with fast access times and a small form factor. Some specific use cases include:

1. Embedded Systems: Storing configuration parameters, firmware updates, and user settings in microcontroller-based systems.
2. Industrial Automation: Saving calibration data, sensor readings, and operational logs in PLCs and other control systems.
3. Consumer Electronics: Storing user preferences, firmware versions, and other settings in household appliances and devices.
4. Telecommunications: Storing network configurations, call logs, and other data in communication equipment.
5. Automotive: Saving vehicle settings, diagnostic information, and other parameters in automotive control modules.

Conclusion of 24LC21/P

The 24LC21/P from Microchip Technology is a versatile and reliable EEPROM memory IC that offers a combination of fast access times, a wide voltage range, and a small form factor. Its I2C interface and 1Kbit storage capacity make it suitable for a wide range of applications, from embedded systems to industrial automation. With its RoHS compliance and REACH unaffected status, the 24LC21/P is an environmentally friendly choice for non-volatile data storage in various electronic systems.

24LC21/P Documents

Download datasheets and manufacturer documentation for 24LC21/P

PCN Assembly/Origin :

Mult Dev 13/Apr/2020      

Datasheets :

24LC21      

PCN Packaging :

Packing Changes 10/Oct/2016       Label and Packing Changes 23/Sep/2015      

Design Resources :

24LC21 Development Tool Selector      

HTML Datasheet :

24LC21      

PCN Design/Specification :

PdCu Bond Wire Update 21/Sep/2015      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH