AT25128B

AT25128B and AT25256B SPI Serial EEPROM 128K (16,384 x 8), 256K (32,768 x 8) DATASHEET Features  Serial Peripheral Interface (SPI) Compatible  Supports SPI Modes 0 (0,0) and 3 (1,1) ̶ Data Sheet Describes Mode 0 Operation  Low-voltage and Standard-voltage Operation ̶ VCC = 1.8V to 5.5V  20MHz Clock Rate (5V)  64-byte Page Mode and Byte Write Operation  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 (5ms max)  High Reliability ̶ Endurance: 1,000,000 Write Cycles ̶ Data Retention: 100 Years  Green (Pb/Halogen-free/RoHS Compliant) Packaging Options  Die Sales: Wafer Form, Waffle Pack, and Bumped Wafers Description The Atmel® AT25128B/256B provides 131,072/262,144 bits of Serial Electrically Erasable Programmable Read-Only Memory (EEPROM) organized as 16,384/32,768 words of 8 bits each. The device is optimized for u...