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AT34C02 - 2-Wire Serial EEPROM with Permanent Software Write Protect

Download the AT34C02 datasheet PDF. This datasheet also covers the AT3-4C0 variant, as both devices belong to the same 2-wire serial eeprom with permanent software write protect family and are provided as variant models within a single manufacturer datasheet.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (AT3-4C0-2.pdf) that lists specifications for multiple related part numbers.

General Description

The AT34C02 provides 2048 bits of serial electrically erasable and programmable read only memory (EEPROM) organized as 256 words of 8 bits each.

Key Features

  • Permanent Software Write Protection for the First-Half of the Array.
  • Software Procedure to Verify Write Protect Status.
  • Hardware Write Protection for the Entire Array.
  • 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 5.5V) Internally Organized 256 x 8 2-Wire Serial Interface Schmitt Trigger, Filtered Inputs for Noise Suppression Bidirectional Data Transfer Protocol 1.