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BUY AT27C256R-70TU https://www.utsource.net/itm/p/11269173.html
IC EPROM 256K PARALLEL 28TSOP
Description: AT27C256R-70TU is a 256Kbit CMOS UV erasable and electrically programmable read-only memory (EEPROM) from Atmel. Features: - Operating voltage range of 4.5V to 5.5V - Low power consumption - Fast programming time - Endurance: 100,000 cycles - Data retention: >100 years - Access time: 70ns Applications: - Automotive - Industrial - Medical - Consumer electronics - Telecommunications (For reference only)