Description
The AT25F512/1024 provides 524,288/1,048,576 bits of serial reprogrammable Flash memory organized as 65,536/131,072 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. The AT25F512/1024 is available in a space-saving 8-lead JEDEC SOIC package.

FEATUREs
• Serial Peripheral Interface (SPI) Compatible
• Supports SPI Modes 0 (0,0) and 3 (1,1)
• 20 MHz Clock Rate
• Byte Mode and 256-byte Page Mode for Program Operations
• Sector Architecture:
   – Two Sectors with 32K Bytes Each (512K)
   – Four Sectors with 32K Bytes Each (1M)
   – 128 Pages per Sector
• Product Identification Mode
• Low-voltage Operation
   – 2.7 (VCC = 2.7V to 3.6V)
• Sector Write Protection
• Write Protect (WP) Pin and Write Disable Instructions for
   both Hardware and Software Data Protection
• Self-timed Program Cycle (60 µs/Byte Typical)
• Self-timed Sector Erase Cycle (1 second/Sector Typical)
• Single Cycle Reprogramming (Erase and Program) for Status Register
• High Reliability
   – Endurance: 10,000 Write Cycles Typical
• 8-lead JEDEC SOIC