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MAX1617

ON Semiconductor
Part Number MAX1617
Manufacturer ON Semiconductor
Description SMBus Temperature Sensor with Internal and External Diode Input
Published May 6, 2005
Detailed Description MAX1617 SMBus Temperature Sensor with Internal and External Diode Input The MAX1617 is a serially programmable temperatu...
Datasheet PDF File MAX1617 PDF File

MAX1617
MAX1617

Overview
MAX1617 SMBus Temperature Sensor with Internal and External Diode Input The MAX1617 is a serially programmable temperature sensor optimized for monitoring modern high performance CPUs with on–board, integrated temperature sensing diodes.
Temperature data is converted from the CPU’s diode outputs and made available as an 8–bit digital word.
Communication with the MAX1617 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 pin when temperature moves outside the preset threshold windows in either direction.
A Standby command may be sent via the SMBus by signaling the STBY input to activate the low–power Standby mode.
Registers can be accessed while in Standby mode.
Address selection inputs allow up to nine MAX1617s 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 MAX1617 an ideal choice for implementing sophisticated system management schemes, such as ACPI.
Features Includes Internal and External Sensing Capability Outputs Temperature As 8–Bit Digital Word Solid State Temperature Sensing; 1°C Resolution 3.
0 — 5.
5V Operating Range Independent Internal and External Threshold Set–Points With ALERT Interrupt Output • SMBus 2–Wire Serial Interface • Up To 9 MAX1617s May Share the Same Bus • Low Standby Power Mode • Low Power: 70 µA (max) Operating, 10 µA (max) Standby Mode • 16–Pin Plastic QSOP Package • Operating Temperature Range: –55°C to +125°C http://onsemi.
com 16–Pin QSOP DB SUFFIX CASE TBD PRELIMINARY INFORMATION PIN CONFIGURATION (Top View) NC 1 VDD 2 D+ 3 16 NC 15 STBY 14 SCL D– 4 13 NC NC 5 MAX1617 12 SDA ADD1 6 GND 7 GND 8 11 ALERT 10 ADD0 9 NC • • • • • O...


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