BUY W27E512P-70 https://www.utsource.net/itm/p/66328.html
64K X 8 ELECTRICALLY ERASABLE EPROM
Description: The W27E512P-70 is a 512Kbit (64K x 8-bit) CMOS electrically erasable programmable read-only memory (EEPROM) organized as 8192 words by 8 bits. Features: Low voltage and standard voltage operations Fully static operation High speed clock operation: -20/25/33/50 MHz Byte/Page write modes Self timed write cycle (5 ms max) Hardware and software data protection Low power consumption Endurance: 100,000 erase/write cycles Data retention: 100 years 32-pin PLCC package Applications: Automotive Industrial Consumer Computer Networking Telecommunications (For reference only)