LM96194CISQ/NOPB National Semiconductor, LM96194CISQ/NOPB Datasheet - Page 7

• Manufacturer Part Number: LM96194CISQ/NOPB
• Description: IC TRUTHERM HDWR MONITOR 48-LLP
• Manufacturer: National Semiconductor
• Series: PowerWise®, TruTherm®r

Specifications of LM96194CISQ/NOPB

• Function: Fan Control, Temp Monitor
• Topology: ADC (Sigma Delta), Comparator, Fan Control, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 85°C, External Sensor
• Output Type: SMBus™
• Output Alarm: No
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-LLP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM96194CISQTR

Symbol
AD_IN6
AD_IN7
AD_IN8
Address Select
3.3V SB (AD_IN8)
GND
PWM1
PWM2
VID0/VID7
VID1
VID2
VID3
VID4
VID5
The over-score indicates the signal is active low (“Not”).
10.0 Server Terminology
A/D
ACPI
ALERT
ASF
BMC
BW
DIMM
DP
ECC
FRU
Analog to Digital Converter
Advanced Configuration and Power
Interface
SMBus signal to bus master that an event
occurred that has been flagged for attention.
Alert Standard Format
Baseboard Management Controller
Bandwidth
Dual in line memory module
Dual-processor
Error checking and correcting
Field replaceable unit
Pin #
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Type
Analog Input
(Mem_Vtt)
Analog Input
(Gbit_Core)
Analog Input (-12V)
3 level analog input
POWER (V
standby power
Ground
Digital Output (Open-
Drain)
Digital Output (Open-
Drain)
Digital Input
Digital Input
Digital Input
Digital Input
Digital Input
Digital Input
DD
) +3.3V
Function
Analog input for +0.984V monitoring, nominal ¾ scale reading.
Analog input for +0.984V S/B monitoring, nominal ¾ scale reading.
Analog input for -12V monitoring. External resistors required to scale to
positive level. Full scale reading at 1.236V, , nominal ¾ scale reading. This
pin may also be used to monitor an analog temperature sensor such as the
LM60, since readings from this input can be routed to the fan control logic.
This input selects the lower two bits of the LM96194 SMBus slave address.
V
power.
The LM96194 can be powered by +3.3V if monitoring in low power states
is not required, but power should be applied to this input before any other
pins.
This pin also serves as the analog input to monitor the 3.3V stand-by (SB)
voltage. It is necessary to bypass this pin with a 0.1 µF in parallel with 100
pF. A bulk capacitance of 10 µF should be in the near vicinity. The 100 pF
should be closest to the power pin.
Digital Ground. All grounds need to be tied together at the chip then taken
to a low noise system ground. A voltage difference between grounds may
cause erroneous results.
Fan control output 1.
Fan control output 2
Voltage Identification signal from the processor. Supports TTL input logic
levels and AGTL compatible input logic levels.
Voltage Identification signal from the processor. Supports TTL input logic
levels and AGTL compatible input logic levels.
Voltage Identification signal from the processor. Supports TTL input logic
levels and AGTL compatible input logic levels.
Voltage Identification signal from the processor. Supports TTL input logic
levels and AGTL compatible input logic levels.
Voltage Identification signal from the processor. Supports TTL input logic
levels and AGTL compatible input logic levels.
Voltage Identification signal from the processor. Supports TTL input logic
levels and AGTL compatible input logic levels.
DD
power input for LM96194. Generally this is connected to +3.3V standby
7
FSB
FW
Gb
GB
Gbe
GPI
GPIO
HW
I
LAN
LSb
LSB
2
C
Front side bus
Firmware
Gigabit
Gigabyte
Gigabit Ethernet
General purpose input
General purpose I/O
Hardware
Inter integrated circuit (bus)
Local area network
Least Significant Bit
Least Significant Byte
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