1FEATURES
2• 2-wire, SMBus 2.0 Compliant, Serial Digital
Interface
• 8-bit ΣΔ ADC
• Monitors VCCP, 2.5V, 3.3 VSBY, 5.0V, and 12V
Motherboard/processor Supplies
• Monitors 2 Remote Thermal Diodes
• Programmable Autonomous Fan Control
Based on Temperature Readings
• Noise Filtering of Temperature Reading for
Fan Control
• 1.0°C Digital Temperature Sensor Resolution
• 3 PWM Fan Speed Control Outputs
• Provides High and Low PWM Frequency
Ranges
• 4 Fan Tachometer Inputs
• Monitors 5 VID Control Lines
• 24-pin TSSOP Package
• XOR-tree Test Mode

APPLICATIONS
• Desktop PC
• Microprocessor based equipment
– (e.g. Base-stations, Routers, ATMs, Point of
Sales)

KEY SPECIFICATIONS
• Voltage Measurement Accuracy ±2% FS (max)
• Resolution 8-bits, 1°C
• Temperature Sensor Accuracy ±3°C (max)
• Temperature Range
– LM96000 Operational 0°C to +85°C
– Remote Temp Accuracy 0°C to +125°C
• Power Supply Voltage +3.0V to +3.6V
• Power Supply Current 0.53 mA

DESCRIPTION
The LM96000, hardware monitor, has a two wire
digital interface compatible with SMBus 2.0. Using an
8-bit ΣΔ ADC, the LM96000 measures:
• the temperature of two remote diode connected
transistors as well as its own die
• the VCCP, 2.5V, 3.3VSBY, 5.0V, and 12V
supplies (internal scaling resistors).
To set fan speed, the LM96000 has three PWM
outputs that are each controlled by one of three
temperature zones. High and low PWM frequency
ranges are supported. The LM96000 includes a
digital filter that can be invoked to smooth
temperature readings for better control of fan speed.
The LM96000 has four tachometer inputs to measure
fan speed. Limit and status registers for all measured
values are included.