EEPROM Serial 1024Kb, SMD, SOIC8 - 

25LC1024-I/SM is a 1Mbit, 2.5V, 1024Kbit serial EEPROM memory with byte-level and page-level serial EEPROM functions. It also features page, sector and chip erase instructions typically associated with Flash-based products. These instructions are not required for byte or page write operations. The memory is accessed via a simple serial peripheral interface (SPI) compatible serial bus. The bus signals required are a clock input (SCK) plus separate data in (SI) and data out (SO) lines. Access to the device is controlled by a Chip Select (active-low CS) input. Communication to the device can be paused via the hold pin (active-low HOLD). While the device is paused, transitions on its inputs will be ignored, with the exception of chip select, allowing the host to service higher priority interrupts.