Description
AT25128B and AT25256B SPI Serial EEPROM 128K (16,384 x 8), 256K (32,768 x 8) DATASHEET .
The Atmel® AT25128B/256B provides 131,072/262,144 bits of Serial Electrically Erasable Programmable Read-Only Memory (EEPROM) organized as 16,384/32,7.
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
