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-volt age operation are essential. The AT25F512/1024 is available in a space-saving 8-lead JEDEC SOIC and 8-lead SAP packages.

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

• Lead-free Devices Available

• 8-lead JEDEC SOIC and 8-lead SAP Packages