AT25640 - ATMEL Corporation

AT25640 SPI Serial EEPROMs

The AT25080/160/320/640 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 industrial and commercial applications where low-power and low-voltage operation are essential. The AT25080/160/320/640 is available .

Features

• Serial Peripheral Interface (SPI) Compatible
• Supports SPI Modes 0 (0,0) and 3 (1,1)
• Low-voltage and Standard-voltage Operation
  – 2.7 (VCC = 2.7V to 5.5V)
  – 1.8 (VCC = 1.8V to 5.5V)
• 3.0 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 (5 ms Typical)
• High-reliability
  – Endurance: One Million Write Cycles
  – Data Retention: 100 Years
• Automotive Grade Devices Available
• 8-lead PDIP, 8-lead JEDEC SOIC and 14-l.