This part is a kind of semiconductor called 25F1024AN.

Function of this product has AT25F1024AN.

Manufacturers : ATMEL

Image and pinout :

Some of the text within the PDF file :

Features • Serial Peripheral Interface (SPI) Compatible • Supports SPI Modes 0 (0,0) and 3 (1,1) – Datasheet Describes Mode 0 Operation • 20 MHz Clock Rate • Byte Mode and 256-byte Page Mode for Program Operations • Sector Architecture: • • • • • • • • • • – 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 (20 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 [ ... ]

25F1024AN PDF Datasheet Download