25LC1024-I/SM

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.

• Clock frequency is 20MHz max (4.5V to 5.5V, TA = -40°C to +85°C)
• 256-byte page, 6ms internal write cycle time max (Byte or page mode and page erase)
• Endurance is 1ME/Wcycles min (TA = -40°C to +85°C, 5.5V), electronic signature for device ID
• Operating current is 5mA max (VCC = 2.5V, FCLK = 10.0 MHz, SO = Open, TA = -40°C to +85°C)
• Standby current is 20µA max (active-low CS = VCC = 5.5V, Inputs tied to VCC or VSS, +125°C)
• Internal write cycle time is 6ms max (byte or page mode and page erase, TA = -40°C to +85°C)
• Chip and sector erase cycle time is 10ms max (TA = -40 to +85°C)
• Power-on/off data protection circuitry, write enable latch, write-protect pin
• <gt/>200years data retention, <gt/>4000V ESD protection
• 8 pin SOIJ package, industrial operating temperature range from -40 to 85°C