24LC21AT-I/SN EEPROM by Microchip Technology

The 24LC21AT-I/SN is a high-performance, 1 Kbit Electrically Erasable PROM (EEPROM) from the reputable semiconductor manufacturer, Microchip Technology. This memory device offers a convenient and robust storage solution for a wide variety of applications that require data retention upon power loss. It operates under the standard serial I²C (Inter-Integrated Circuit) bus protocol, ensuring compatibility with a broad range of microcontrollers and processors.

Designed with longevity and reliability in mind, the 24LC21AT-I/SN features a significant endurance of 1 million erase/write cycles and a data retention period of over 200 years. These characteristics make it an ideal choice for applications where data integrity over extended periods is crucial.

This EEPROM operates within a voltage range of 2.5V to 5.5V, catering to low-power applications and making it versatile for both battery-powered and traditional powered devices. The 24LC21AT-I/SN comes in an 8-pin SOIC (Small Outline Integrated Circuit) package, which is widely used and favored for its compact footprint on printed circuit boards.

Key features of the 24LC21AT-I/SN include:

• Memory Size: 128 x 8 (1 Kbit)
• Operating Voltage: 2.5V to 5.5V
• Operating Temperature: -40°C to +85°C (Industrial grade)
• Communication: I²C Serial Interface
• Package: 8-pin SOIC
• Endurance: 1 million erase/write cycles
• Data Retention: >200 years

The device also includes features such as a page write buffer, which allows for up to 8 bytes of data to be written in a single write cycle, enhancing the efficiency of data logging operations. Additionally, the 24LC21AT-I/SN supports a bidirectional data transfer protocol, which increases the flexibility and speed of communication.

Whether you are designing consumer electronics, automotive systems, industrial controls, or any other system requiring non-volatile memory, the 24LC21AT-I/SN EEPROM from Microchip Technology is a reliable and cost-effective choice that promises to keep your data safe and accessible over an extended period.