The Microchip 25AA128X-I/ST is a 128 Kb Serial EEPROM utilizing theindustry standard Serial Peripheral Interface (SPI) compatible serial bus. Thedevice is organized as one block of 16,384 x 8-bit and is optimized for use in consumer electronics, industrial, medical,and automotive applications where reliable and dependable nonvolatile memorystorage is essential. Software write protection allows the user to protect ¼,½, or the entire memory array. A hardware write protect pin is also provided,which additionally protects against inadvertent writes to the status register.The EEPROM is available in a variety of space-saving packaging options.
For product comparison, please consider:AT25128B,25LC128
Feature
- 16,384 x 8-bit (128 Kbit)
 - Serial Peripheral Interface (SPI) Compatible
    
- Supports SPI modes 0 and 3
 - Up to 10 MHz clock frequency
 
 - Self-Timed Erase and Write Cycles (5 ms max.)
 - Low Power Consumption
    
- Read current: 5 mA (Max) at 10 MHz
 - Write current: 5 mA (Max) at 10 MHz
 - Standby current: 5 μA (Max) at 5.5 V
 
 - Block Write Protection: Protect 1/4, 1/2 or Entire Array
 - More than 1 million erase/write cycles
 - Data retention > 200 years
 - Temperature Ranges Available
    
- Industrial (I): -40°C to 85°C
 
 - Automotive AECQ-100 Qualified1
 - Factory Programming Available
 - Available in standard packages including 8-lead PDIP and SOIC, and advanced packages including 8-lead MSOP, 8-lead TSSOP and 8-lead 2x3 TDFN
 





















