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Description

The AT25HP256/512 provides 262,144/524,288 bits of serial electrically erasable programmable read only memory (EEPROM) organized as 32,768/65,536 words of 8-bits each. The device is optimized for use in many industrial and commercial applications where high-speed, low-power, and low-voltage operation are essential. The AT25HP256/512 is available in a space saving 8-pin PDIP (AT25HP256/512), 8-pin EIAJ SOIC (AT25HP256), and 8-pin Leadless Array (AT25HP256/512) packages.

Features

? Serial Peripheral Interface (SPI) Compatible

? Supports SPI Modes 0 (0,0) and 3 (1,1)

? 10 MHz Clock Rate

? 128-Byte Page Mode Only for Write Operations

? Low-Voltage and Standard-Voltage Operation

– 5.0 (VCC = 4.5V to 5.5V)

– 2.7 (VCC = 2.7V to 5.5V)

– 1.8 (VCC = 1.8V to 3.6V)

? 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

? High Reliability

– Endurance: 100K Write Cycles

– Data Retention: > 40 Years

– ESD Protection: > 3000V

? 8-Pin PDIP, 8-Pin EIAJ SOIC, and 8-Pin Leadless Array Package