BUY DS1000-25 https://www.utsource.net/itm/p/1747586.html
5-tap Silicon Delay Line
Description: The DS1000-25 is a Dallas Semiconductor 512K-Bit Serial EEPROM with a DIP-14 package. Features: * 6-wire serial EEPROM interface * 8-bit instruction code * 32-byte page write buffer * Self-timed write cycle * Low power CMOS Operation * Low voltage range of 3.0 - 5.5 V * Automatic address incrementing Applications: * Power supply sequencing * System configuration * Nonvolatile memory * Networking applications (For reference only)