Description
The AT25080A/160A/320A/640A provides 8192/16384/32768/65536 bits of serial electrically-erasable programmable read-only memory (EEPROM) organized as 1024/2048/4096/8192 words of 8 bits each. The device is optimized for use in many automotive applications where low-power and low-voltage operation are essential. The AT25080A/160A/320A/640A is available in space saving 8-lead PDIP and 8-lead JEDEC SOIC packages.

FEATUREs
• Serial Peripheral Interface (SPI) Compatible
• Supports SPI Modes 0 (0,0) and 3 (1,1)
   – Data Sheet Describes Mode 0 Operation
• Medium-voltage and Standard-voltage Operation
   – 5.0 (VCC = 4.5V to 5.5V)
   – 2.7 (VCC = 2.7V to 5.5V)
• 5.0 MHz Clock Rate (5V)
• 32-byte Page Mode
• 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 (2 ms [5V] typical)
• High Reliability
   – Endurance: One Million Write Cycles
   – Data Retention: 100 Years
• 8-lead PDIP and 8-lead JEDEC SOIC Packages