EMC1063
1°C Triple Temperature
Sensor with Hotter of
Two Zones
PRODUCT FEATURES
GENERAL DESCRIPTION
The EMC1063 is a family of System Management Bus
(SMBus) temperature sensors that monitors three
temperature zones, one internal diode and two
externally connected diodes. The EMC1063 is
specifically designed to operate with AMD processor
diodes. Alternately, the External Diode 2 channel can be
configured to measure a standard thermal diode (such
as a 2N3904) with Resistive Error Correction active.
An added feature to the EMC1063 is a function that
automatically compares the two external temperature
zones and reports the hotter of the two temperatures.
Selectable conversion rates and standby mode support
low-power operation. The temperature measurement
ranges support two data ranges (and formats), -64°C to
+127°C and -64°C to +191°C.
APPLICATIONS
Desktop and Notebook Computers
Hardware Management
Servers
Embedded Applications
Datasheet
FEATURES
Designed to Operate with AMD Processor Diodes
Supports two External Temperature Diodes
—
—
—
—
±1°C
Accuracy (40°C to 80°C)
0.125°C Resolution
Ideality Factor Configuration
Accepts 2200pF Cap Across External Diodes for Noise
Suppression
— Optional Resistive Error Correction on External Diode 2
—
±3°C
Accuracy (0°C to 85°C)
— 0.125°C Resolution
— 4uA Standby Current
Internal Temperature Diode
Low Power Operation
3.0V to 3.6V Supply
Programmable Conversion Rate
SMBus 2.0 Compliant
— Four SMBus Address Available
Reports Hotter of Two Diodes with Dual-core CPU
SIMPLIFIED BLOCK DIAGRAM
Switching
Current
External Diode
1 Register
Analog Mux
and Anti-Alias Filter
Configuration
Register
DP1
DN1
DP2
DN2
Local Temp
Diode
11-bit
delta-sigma
ADC
External Diode
2 Register
Digital Mux
and
Byte Interlock
Internal Diode
Register
Status Register
SMBus Interface
SMCLK
SMDATA
SMSC EMC1063
DATASHEET
Revision 1.37 (02-05-07)
SMSC [ SMSC CORPORATION ]
