Download Datasheets TC1068 Device 
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Home - Analog & Interface Products - Thermal Management - Serial Output - TC1068 Device, download datasheet

Download Datasheets TC1068 Device

The TC1068 is a serially programmable temperature sensor optimized for monitoring modern high performance CPUs with on-board integrated thermal diodes. Temperature data is converted from the CPUs thermal diode outputs and made available as an 8-bit digital word. Communication with the TC1068 is accomplished via the standard System Management Bus (SMBus) commonly used in modern computer systems. This permits reading the current internal/external temperature, programming the threshold setpoints, and configuring the device. Additionally, an interrupt is generated on the ALERT#/COMP# pin when temperature moves outside the preset threshold windows in either direction. A Standby command may be sent via the SMBus or by signaling the STBY# input pin to activate the low-power Standby mode. Registers can be accessed while in Standby mode. Address selection inputs allow up to nine TC1068s to share the same 2-wire SMBus for multi-zone monitoring. All registers can be read by the host, and both polled and interrupt driven systems are easily accommodated. Small size, low installed cost, and ease of use make the TC1068 an ideal choice for implementing sophisticated system man-agement schemes, such as ACPI.

Datasheet and Other Documentation

Detailed Content

Lit. Number



TC1068 Datasheet


Download TC1068 Datasheet



Specification Chart

Output Type

Typical Accuracy (C)

Maximum Accuracy @ 25C

Maximum Temperature Range (C)

Vcc Range (V)

Max. Supply Current (A)

Serial Output



-55 to +125

+3.0 to +5.5


Additional Features

Backward Compliant to Older APM Systems
Includes Internal and External Sensing Capability
Outputs Temperature As 8-Bit Digital Word
Solid State Temperature Sensing; 1C Resolution
3.0 5.5V Operating Range
Independent Internal and External Threshold Set-Points With ALERT#/COMP# Interrupt Output
SMBus 2-Wire Serial Interface
Up To Nine TC1068s May Share the Same Bus
Standby Mode for Low Standby Power
Low Power 70 A (max) Operating
10 A (max) Standby Mode

Package Options

16 QSOP(QS), 2008-2015 - download datasheets