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LM96080CIMT/NOPB-LM96080CIMTX NOPB
System Hardware Monitor with 2-Wire Serial Interface
LM96080
www.ti.com SNAS465D –SEPTEMBER 2009–REVISED MARCH 2013
LM96080 System Hardware Monitor with 2-Wire Serial Interface
Checkfor Samples: LM96080
1FEATURES DESCRIPTIONLM96080, compatibleto LM80,isa hardware monitor
Local Temperature Sensing that containsa 10-bit delta-sigma ADC capableof
• 7 Positive Voltage Inputs with 10-bit measuring7 positive voltages and local temperature.
Resolution The LM96080 also measures the speedof two fans
2 Programmable Fan Speed Monitoring Inputs and includes other hardware monitoring on anI2 C®
interface. The LM96080 includesa sequencer that
• 2.5 mV LSb and 2.56V Input Range performs WATCHDOG window comparisons of all
• Chassis Intrusion Detector Input measured values and its interrupt outputs become
WATCHDOG Comparisonof All Monitored active when any values exceed the programmed
Values limits.
Separate Inputto Show Statusin Interrupt The LM96080is especially suitedto interfaceto both
Status Registerof Additional External linear and digital temperature sensors. The 2.5 mV
Temperature Sensors Suchas the LM26/27, LSb (least significant bit) and 2.56 volt input rangeis
ideal for accepting inputs froma linear sensor such
LM56/57, LM73,or LM75 the LM94022. The BTIis used as an input from
•I2C Serial Bus Interface Compatibility, either digitalor thermostat sensors such as LM73,
Supports Standard Mode, 100 kbits/s, and Fast LM75, LM56, LM57, LM26, LM27, LM26LV,or other
Mode, 400 kbits/s LM96080.
• Shutdown Modeto Minimize Power The LM96080 supports Standard Mode (Sm, 100
Consumption kbits/s) and Fast Mode (Fm, 400 kbits/s)I2C interface
• Programmable RST_OUT/OS Pin: RST_OUT modesof operation. LM96080 includes an analog
Providesa Reset Output; OS Provides an filter on theI2C digital control lines that allows
Interrupt Output Activated by an improved noise immunity and supports TIMEOUT
Overtemperature Shutdown Event reset functionon SDA and SCL that preventsI2C bus
lockup. ThreeI2C device address pins allow upto8
• Software and Pin Compatible with the LM80 partsona single bus.
APPLICATIONS The LM96080's 3.0Vto 5.5V supply voltage range,
low supply current, andI2C interface makeit ideal for
• Communications Infrastructure a wide rangeof applications. Operationis ensured
• System Thermal and Hardware Monitoring for over the temperature range of (−40)°C≤ TA≤ +125°C. The LM96080 is available ina 24-pin
TSSOP package.
(Max) (Max) +5.5V mA Typ mA Typ
