MAX6621

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 +3.6V supply voltage and ambient temperature range of -20°C to +120°C. Servers Workstations Desktop Computers Applications SMBus is a trademark of Intel Corp. μMAX is a registered trademark of Maxim Integrated Products, Inc. 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 Ordering Information PART TEMP RANGE PIN-PACKAGE MAX6621AUB+ -20...