AT25256A
Description
The AT25128A/256A provides 131,072/262,144 bits of serial electrically-erasable programmable read only memory (EEPROM) organized as 16,384/32,768 words of 8 bits each. The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operation are essential.
Key Features
- Serial Peripheral Interface (SPI) Compatible
- Supports SPI Modes 0 (0,0) and 3 (1,1)
- Data Sheet Describes Mode 0 Operation
- Low-voltage and Standard-voltage Operation - 2.7 (VCC = 2.7V to 5.5V) - 1.8 (VCC = 1.8V to 5.5V)
- 20 MHz Clock Rate (5V)
- 64-byte Page Mode and Byte Write Operation
- Block Write Protection - Protect 1/4, 1/2, or Entire Array
- Write Protect (WP) Pin and Write Disable Instructions for Both Hardware and Software Data Protection
- Self-timed Write Cycle (5 ms Max)
- High-reliability - Endurance: 1 Million Write Cycles - Data Retention: >100 Years
