onsemi Temperature Monitor, Digital Output, Surface Mount, SMBus, ±1 °C, ±3 °C, 8 Pins

The ADT7461 series of temperature monitors contains a digital thermometer for measurement of ambient temperature in a remote thermal diode or on-chip and an under/overtemperature alarm.
Applications include PCs, telecommunications equipment, embedded systems, instrumentation and industrial controllers.

Features;
2Wire serial interface
3 V to 5.5 V power supply
Series resistance cancellation
Configurable ALERT output
Extended switchable temperature range

Temperature & Humidity Sensors, ON Semiconductor