The 25LC1024-E/SM is a 1024kb serial EEPROM Memory with byte-level and page-level serial EEPROM functions. It also features page, sector and chip erase functions typically associated with flash-based products. These functions 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 (CS) input. Communication to the device can be paused via the hold pin (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.
256-byte page
6ms Maximum write cycle time
No page or sector erase required
Low-power CMOS technology
Electronic signature for device ID
Page erase (6ms maximum)
Sector erase (10ms maximum)
Chip erase (10ms maximum)
Sector write protection (32kB/sector) - Protect none, 1/4, 1/2 or all of array
Built-in write protection - Power-on/off data protection circuitry
(EN)
