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MON35W42 Datasheet(PDF) 7 Page - SMSC Corporation

Part # MON35W42
Description  Hardware Monitoring IC with Thermal Diode Interface
PDF  60 Pages
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Manufacturer  SMSC [SMSC Corporation]
Direct Link  http://www.smsc.com
Logo SMSC - SMSC Corporation

MON35W42 Datasheet(HTML) 7 Page - SMSC Corporation

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PIN NAME
PIN NO.
TYPE
DESCRIPTION
FAN2IO-FAN1IO
19-20
I/O12t
0V to +5V amplitude fan tachometer input /
Fan on-off control output. These multi-functional
pins can be programmable input or output.
SCL
21
INts
Serial Bus Clock.
SDA
22
I/O12ts
Serial Bus bi-directional Data.
PWMOUT1
23
OUT12t
Fan speed control PWM output.
VID2
24
IN t
Voltage Supply readouts from P6. This value is
read in the VID/Fan Divisor Register.
VID3
25
IN t
Voltage Supply readouts from P6. This value is
read in the VID/Fan Divisor Register.
BEEP/nGPO
26
OD48
Beep (Default) / General purpose output
This multi-functional pin is programmable.
GNDA
27
AGROUND
Internally connected to all analog circuitry. The
ground reference for all analog inputs.
-5VIN
28
AIN
0V to 4.096V FSR Analog Inputs.
5VSB
29
AIN
0V to 4.096V FSR Analog Inputs.
VBAT
30
AIN
0V to 4.096V FSR Analog Inputs. (This pin
should be connected to a 3V BATTERY.)
-12VIN
31
AIN
0V to 4.096V FSR Analog Inputs.
+12VIN
32
AIN
0V to 4.096V FSR Analog Inputs.
+5VIN
33
AIN
This pin is Analog Vcc and connects internal
monitor channel IN3 with fixed scale.
+3.3VIN
34
AIN
0V to 4.096V FSR Analog Inputs.
VINR0
35
AIN
0V to 4.096V FSR Analog Inputs.
VCOREA
36
AIN
0V to 4.096V FSR Analog Inputs.
VREF
37
AOUT
Reference Voltage.
VTIN3 /
PIITD3
38
AIN
Thermistor 3 terminal input.(Default) /
Pentium
® II diode 3 input.
This multi-functional pin is programmable.
VTIN2 /
PIITD2
39
AIN
Thermistor 2 terminal input. (Default)/
Pentium
® II diode 2 input.
This multi-functional pin is programmable.
VTIN1 /
PIITD1
40
AIN
Thermistor 1 terminal input. (Default)/
Pentium
® II diode 1 input.
This multi-functional pin is programmable.
VID0
41
IN t
Voltage Supply readouts from P6. This value is
read in the VID/Fan Divisor Register.
nOVT
42
OD12t
Over temperature Shutdown Output.
ADRMSEL
43
INt
Pin 45--47 mode selection.
0 =
The 3 lowest order bits of ISA Address
Bus.(Default, internal pull-down 47K ohm)
1 = 7 bit I
2C address setting pin.(bit2 - bit0)



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