The “N24RFxx” series provided by ONSEMI is an EEPROM that conforms to RFID interface in addition to conforming to I2C interface for communicating with microcontrollers. Therefore, as an EEPROM that can be read and written wirelessly, it is the optimum memory when considering factory automation and the Internet of things IoT for automating the factory production process.

This article explains the following four features of the “N24RFxx” series.

1. Equipped with two interfaces, RFID and I2C
2. high reliability
3. with Energy Harvesting Analog Output
4. Lineup of various uses and capacities

3. With Energy Harvesting Analog Output

In this product, N24RFxxE with E at the end is a product with Energy Harvesting Analog Output. This energy harvesting mode is enabled to provide an analog voltage Vout available from the Vout pin when the RF field strength is sufficient. Therefore, this function enables Read/Write without power supply.

4. Lineup of various uses and capacities

This product can read and write data without physically inserting a cable when writing data to the board during maintenance such as applications and mass production lines. Therefore, in factory automation, it can be used for purposes such as checking work history and process history, and in IoT, it can be used for purposes such as rewriting air conditioner specifications. There are also three types of memory capacity lineup: 4kbit/16kbit/64kbit.