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MAX6621 - PECI-to-I2C Translator

General Description

The MAX6621 PECI-to-I2C translator provides an efficient, low-cost solution for PECI-to-SMBusTM/I2C protocol conversion.

The PECI-compliant host reads temperature data directly from up to four PECI-enabled CPUs.

Key Features

  • 400kbps I2C-Compatible, 2-Wire Serial Interface.
  • +3V to +3.6V Supply Voltage.
  • PECI-Compliant Port.
  • PECI-to-I2C Translation.
  • ALERT Output.
  • RESET Input (May Be Disabled as a Factory Option).
  • Programmable Temperature Offsets.
  • -20°C to +120°C Operating Temperature Range.
  • VREF Input Refers Logic Levels to the PECI Supply Voltage.
  • Automatic I2C Bus Lockup Timeout Reset.
  • Lead-Free, 10-Pin µMAX® Package.

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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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MAX6621 19-0729; Rev 2; 12/09 PECI-to-I2C Translator General Description The MAX6621 PECI-to-I2C translator provides an efficient, low-cost solution for PECI-to-SMBusTM/I2C protocol conversion. The PECI-compliant host reads temperature data directly from up to four PECI-enabled CPUs. Interrupts are generated when the measured temperature exceeds the high-temperature limit and causes ALERT to assert. The RESET input allows the host to reset the I2C bus in the event of a communication error. The I2C interface provides an independent serial communication channel to communicate synchronously with peripheral devices in a multiple master or multiple slave system. This interface allows a maximum serial-data rate of 400kbps. The MAX6621 is designed to operate from a +3.0V to +3.