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GX28E01-100 - 1K-Bit Protected 1-Wire EEPROM

General Description

The GX28E01-100 combines 1024 bits of EEPROM with challenge-and-response authentication security implemented with the ISO/IEC 10118-3 Secure Hash Algorithm (SHA-1).

The 1024-bit EEPROM array is configured as four pages of 256 bits with a 64-bit scratchpad to perform write operations.

Key Features

  • 1024 bits of EEPROM memory partitioned into four pages of 256 bits.
  • On-chip 512-bit SHA-1 engine to compute 160-bit Message Authentication Codes (MAC) and to generate secrets.
  • Write access requires knowledge of the secret and the capability of computing and transmitting a 160-bit MAC as authorization.
  • User-programmable page write-protection for page 0, page 3 or all four pages together.
  • User-programmable OTP EPROM emulation mode for page 1 ("write to 0").
  • Communica.

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Datasheet Details

Part number GX28E01-100
Manufacturer GXCAS
File Size 325.21 KB
Description 1K-Bit Protected 1-Wire EEPROM
Datasheet download datasheet GX28E01-100 Datasheet

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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.

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GENERAL DESCRIPTION The GX28E01-100 combines 1024 bits of EEPROM with challenge-and-response authentication security implemented with the ISO/IEC 10118-3 Secure Hash Algorithm (SHA-1). The 1024-bit EEPROM array is configured as four pages of 256 bits with a 64-bit scratchpad to perform write operations. All memory pages can be write protected, and one page can be put in EPROM-emulation mode, where bits can only be changed from a 1 to a 0 state. Each GX28E01100 has its own guaranteed unique 64-bit ROM registration number that is factory lasered into the chip. The GX28E01-100 communicates over the single-contact 1-Wire® bus.