EMC1053 Datasheet, PDF (1/24 Pages) SMSC Corporation – 1C Triple Temperature Sensor with Resistance Error Correction and Hotter of Two Zones

EMC1053
1°C Triple Temperature
Sensor with Resistance
Error Correction and
Hotter of Two Zones
PRODUCT FEATURES
Datasheet
GENERAL DESCRIPTION
The EMC1053 is a System Management Bus (SMBus)
temperature sensor that monitors up to three
temperature zones, two remote and one local, for PC
and embedded environments. The EMC1053 extended
features include resistance error correction and ideality
factor configuration to eliminate major sources of
temperature measurement error.¹ Monitoring both
diodes of a dual-core CPU is simplified with the Hotter
of Two Zones feature.
The external and internal measurement ranges support
two data ranges (and formats), -64°C to +127°C and
-64°C to +191°C.
Selectable conversion rates and standby mode support
low-power operation.
APPLICATIONS
■ Desktop and Notebook Computers
■ Hardware Management
FEATURES
■ Resistance Error Correction
■ Ideality Factor Configuration
■ Reports Hotter of Two Zones with dual-core CPU
■ Accepts 2200pF cap for noise suppression
■ 2 Remote Thermal Zones
— ±1°C Accuracy (40°C to 80°C)
— 0.125°C resolution
■ Internal Thermal Zone
— ±3°C Accuracy (0°C to 85°C)
— 0.125°C resolution
■ Low Power; 3.0V to 3.6V Supply
■ Programmable Conversion Rate
■ SMBus 2.0 Compliant
1.Patents pending.
SIMPLIFIED BLOCK DIAGRAM
DP1
DN1
Switching
Current
DP2
DN2
Local Temp
Diode
EMC1053
11-bit
delta-sigma
ADC
Remote Temp
Register 1
Remote Temp
Register 2
Local Temp
Register
Configuration
Register
Digital Mux
and
Byte Interlock
Status Register
SMCLK
SMDATA
SMSC EMC1053
DATASHEET
Revision 0.58 (09-26-05)