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AT21CS01 - EEPROM

General Description

The Atmel® AT21CS01 provides 1,024 bits of Serial Electrically Erasable and Programmable Read-Only Memory (EEPROM) organized as 128 words of 8 bits each.

The device’s software addressing scheme allows up to eight devices to share a common Single-Wire bus.

Key Features

  • Low voltage operation ̶ Device is self-powered via 1.7V to 3.6V pull-up voltage on the SI/O line.
  • Internally organized as 128 words of 8 bits each (1-Kbit).
  • Single-Wire serial interface with I2C protocol structure ̶ Device communication is achieved through a single I/O pin.
  • Standard Speed and High Speed Mode options ̶ 15.4kbps maximum bit rate in Standard Speed Mode ̶ 125kbps maximum bit rate in High Speed Mode.
  • 8-byte Page Write or single Byte Writes allowed.
  • Disc.

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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
AT21CS01 Single-Wire, I/O Powered Serial EEPROM with a Unique, Factory Programmed 64-bit Serial Number 1-Kbit (128 x 8) DATASHEET Features  Low voltage operation ̶ Device is self-powered via 1.7V to 3.6V pull-up voltage on the SI/O line  Internally organized as 128 words of 8 bits each (1-Kbit)  Single-Wire serial interface with I2C protocol structure ̶ Device communication is achieved through a single I/O pin  Standard Speed and High Speed Mode options ̶ 15.