Description

The 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 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 SOIC, 8-lead TSSOP, 8-ball VFBGA and 8-lead UDFN pack ages. In addition, the entire family is available in 1.8V (1.8V to 5.5V).

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

– 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

• Green (Pb/Halide-free/RoHS Compliant) Packaging Options

• Die Sales: Wafer Form, Waffle Pack, and Bumped Die