MAX6618_13 Datasheet, PDF (1/17 Pages) Maxim Integrated Products – PECI-to-I2C Translator

MAX6618
PECI-to-I²C Translator
General Description
The MAX6618 PECI(1.0)-to-I²C translator provides an
efficient, low-cost solution for PECI(1.0)-to-SMBus/I²C
protocol conversion. The PECI(1.0)-compliant host
reads temperature data directly from up to four
PECI(1.0)-enabled CPUs. This translator will only com-
municate with CPUs that support PECI 1.0.
The I²C interface provides an independent serial com-
munication 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 MAX6618 is designed to operate from a +3.0V to
+3.6V supply voltage and ambient temperature range
of -20°C to +120°C.
Applications
Servers
Workstations
Desktop Computers
Pin Configuration appears at end of data sheet.
Features
♦ 400kbps I²C-Compatible, 2-Wire Serial Interface
♦ +3V to +3.6V Supply Voltage
♦ PECI(1.0)-Compliant Port
♦ PECI(1.0)-to-I²C Translation
♦ Programmable Temperature Offsets
♦ -20°C to +120°C Operating Temperature Range
♦ V_REF 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
MAX6618AUB+
-20°C to +120°C 10 µMAX
MAX6618AUB+T
-20°C to +120°C 10 µMAX
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Typical Application Circuit
SDA
I²C ^SCL
MASTER
+3.3V
V_TT
V_CC
SDA
V_REF
MAX6618
SCL
PECI
AD2
AD1
AD0
GND
V_CPU
CPU
INTERNAL
TEMP
SENSOR
µMAX is a registered trademark of Maxim Integrated Products.
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
19-0730; Rev 4; 5/13