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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.

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.

📥 Download Datasheet

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

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Other Datasheets by Atmel (now Microchip Technology)

Part Number Description
AT34C02B Two-wire Serial EEPROM
AT34C02C Two-wire Serial EEPROM
AT32AP7000 32-bit Microcontroller
AT32AP7001 32-bit Microcontroller
AT32AP7002 32-bit Microcontroller

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
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 100 KHz (1.8V and 2.7V) and 400 KHz (5.