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LM95245,datasheet,pdf(Precisio
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2009-10-20
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The LM95245 is an 11-bit digital temperature sensor with a
2-wire System Management Bus (SMBus) interface and
TruTherm technology that can monitor the temperature of a
remote diode as well as its own temperature. The LM95245
can be used to very accurately monitor the temperature of
external devices such as microprocessors. TruTherm technology
allows the LM95245 to precisely monitor thermal
diodes found in 90 nm and smaller geometry processes. The
LM95245 is specifically targeted for Intel processors on 45nm
process. LM95245 reports temperature in two different formats
for +127.875°C/-128°C range and 0°C/255°C range.
The LM95245 T_CRIT and OS outputs are asserted when
either unmasked channel exceeds its programmed limit and
can be used to shutdown the system, to turn on the system
fans, or as a microcontroller interrupt function. The current
status of the T_CRIT and OS pins can be read back from the
status registers via the SMBus interface. All limits have a
shared programmable hysteresis register.
2-wire System Management Bus (SMBus) interface and
TruTherm technology that can monitor the temperature of a
remote diode as well as its own temperature. The LM95245
can be used to very accurately monitor the temperature of
external devices such as microprocessors. TruTherm technology
allows the LM95245 to precisely monitor thermal
diodes found in 90 nm and smaller geometry processes. The
LM95245 is specifically targeted for Intel processors on 45nm
process. LM95245 reports temperature in two different formats
for +127.875°C/-128°C range and 0°C/255°C range.
The LM95245 T_CRIT and OS outputs are asserted when
either unmasked channel exceeds its programmed limit and
can be used to shutdown the system, to turn on the system
fans, or as a microcontroller interrupt function. The current
status of the T_CRIT and OS pins can be read back from the
status registers via the SMBus interface. All limits have a
shared programmable hysteresis register.
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