Description
●The AT25128A/256A 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 use in many industrial and commercial applications where low-power and low-voltage operation are essential. The devices are available in space saving 8-lead PDIP, 8-lead EIAJ SOIC, 8-lead JEDEC SOIC, 8-lead TSSOP, 8-ball dBGA2 and 8-lead SAP packages. In addition, the entire family is available in 2.7V (2.7V to 5.5V) and 1.8V (1.8V to 5.5V) versions.
●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
● – 2.7 (VCC = 2.7V to 5.5V)
● – 1.8 (VCC = 1.8V to 5.5V)
●• 20 MHz 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 (5 ms Max)
●• High-reliability
● – Endurance: 1 Million Write Cycles
● – Data Retention: >100 Years
●• Automotive Grade, Extended Temperature and Lead-free/Halogen-free Devices Available
●• 8-lead PDIP, 8-lead EIAJ SOIC, 8-lead JEDEC SOIC, 8-lead TSSOP, 8-ball dBGA2 and 8-lead SAP Packages
●• Die Sales: Wafer Form, Waffle Pack, and Bumped Die
