●Description
●The AT25FS040 provides 4,194,304 bits of serial reprogrammable Flash memory organized as 524,288 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 AT25FS040 is available in a space-saving 8-lead JEDEC SOIC and 8-lead Ultra Thin SAP packages.
●Features
●• Serial Peripheral Interface (SPI) Compatible
●• Supports SPI Modes 0 (0,0) and 3 (1,1)
● – Datasheet describes Mode 0 Operation
●• 50 MHz Clock Rate
●• Byte Mode and Page Mode Program (1 to 256 Bytes) Operations
●• Sector/Block/Page Architecture
● – Sixteen 256 byte Pages per Sector
● – Sixteen 4 Kbyte Sectors per Block
● – Eight uniform 64 Kbyte Blocks
●• Self-timed Sector, Block and Chip Erase
●• Product Identification Mode with JEDEC Standard
●• Low-voltage Operation
● – 2.7V (VCC = 2.7V to 3.6V)
●• Hardware and Software Write Protection
● – Device protection with Write Protect (WP) Pin
● – Write Enable and Write Disable Instructions
● – Software Write Protection:
●• Upper 1/64, 1/32, 1/16, 1/8, 1/4, 1/2 or Entire Array
●• Flexible Op Codes for Maximum Compatibility
●• Self-timed Program Cycle
● – 30 µs/Byte Typical
●• Single Cycle Reprogramming (Erase and Program) for Status Register
●• High Reliability
● – Endurance: 10,000 Write Cycles Typical
●• 8-lead JEDEC 150mil SOIC and 8-lead Ultra Thin Small Array Package (SAP)
●• Die Sales: Waffer Form, Tape and Reel, and Bumped Wafers
