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BUY AT24C04B-PU https://www.utsource.net/itm/p/11582659.html
IC EEPROM 4K I2C 1MHZ 8DIP
Description: The AT24C04B-PU is an EEPROM (Electrically Erasable Programmable Read-Only Memory) from Atmel. It is a 4Kbit, 8-pin device with a 2-wire serial interface. Features: 4Kbit of memory 2-wire serial interface Low-voltage and standard-voltage operation 1MHz (5V) and 400kHz (1.8V) communication speed Write protect pin for hardware data protection Self-timed write cycle (5ms max) Low-power CMOS technology Endurance: 1,000,000 write/erase cycles Data retention: 100 years Applications: Automotive Industrial Consumer Medical Security Telecom/Networking (For reference only)