BUY CAT24C44P https://www.utsource.net/itm/p/931250.html
NVRAM EEPROM Based
The CAT24C44P is a 4Kb Serial EEPROM manufactured by ON Semiconductor. It is an 8-pin DIP package with a CSI (Chip Select Input) interface. Description: The CAT24C44P is a 4Kb Serial EEPROM with a CSI (Chip Select Input) interface. It has a maximum clock frequency of 400kHz, and is capable of both byte and page write operations. It also features an internal write protection register that can be used to protect the entire memory array or individual blocks of memory. Features: 4Kb of memory CSI (Chip Select Input) interface Maximum clock frequency of 400kHz Byte and page write operations Internal write protection register Low power consumption Operating voltage range of 1.8V to 5.5V Applications: The CAT24C44P is suitable for a variety of applications, including data logging, remote control systems, consumer electronics, and automotive applications. It can also be used for storing configuration data, such as passwords and user settings. (For reference only)