The 24AA64T-I/MS is a 64-Kbit serial EEPROM device that works with I2C and SPI buses. This device is designed and manufactured by Microchip. It has a storage of 8,192 words and each word is 8 bits wide. The device supports up to 1MHz I2C bus and 10MHz SPI bus speeds. It is available in SO (small outline) 8-pin chip form factor, with an operating temperature range of -40°C to +85°C. It includes an on-board memory write protection, a low-voltage detection, and a power-on-reset that helps protect user data. Additionally, the 24AA64T-I/MS offers 10 years of data retention, making it an ideal choice for applications that require reliable and long-term memory storage.