PECI-to-I²C Translator

The MAX6621 PECI-to-I²C translator provides an efficient, low-cost solution for PECI-to-SMBus™/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 the active-low ALERT to assert. The active-low 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 +3.6V supply voltage and ambient temperature range of -20°C to +120°C.

Applications

* Desktop Computers * Servers * Workstations

* 400kbps I²C-Compatible, 2-Wire Serial Interface

* +3V to +3.6V Supply Voltage

* PECI 1.0-Compliant Port

* PECI-to-I²C Translation

* Active-Low ALERT Output

* Active-Low 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