25LC256-I/P Serial EEPROM by Microchip. Organisation: 32,768 x 8-bit 64 byte page Clock Speed: 10 MHz (Max.) Interface: Serial Peripheral Interface™ (SPI™) Package: 8-DIP Download Microchip 25LC256-I/P .pdf datasheet: Status: NOS (New old Stock) Individually tested components: YES RoHS compliant: YES, e3