ADT7462ACPZ-REEL7 ON Semiconductor, ADT7462ACPZ-REEL7 Datasheet - Page 4

• Manufacturer Part Number: ADT7462ACPZ-REEL7
• Description: IC TEMP/VOLT MONITOR 32-LFCSP
• Manufacturer: ON Semiconductor

Specifications of ADT7462ACPZ-REEL7

• Function: Fan Control, Temp Monitor
• Topology: ADC, Comparator, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 125°C, External Sensor
• Output Type: SMBus™
• Output Alarm: No
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 32-LFCSP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Pin
No.
22
23
24
25
26
27
28
29
30
31
32
THERM1/+1.5V1/GPIO7/VID6
V
V
VR_HOT1/+1.2V1/+3.3V
VR_HOT2/+1.2V2/V
THERM2/+1.5V2/GPIO8
CCP1
CCP2
VID4/GPIO5/PWM1
VID5/GPIO6/PWM2
TACH8/+12V3
/+1.5V/+1.8V/+2.5V
/+1.5V/+1.8V/+2.5V
FAN2MAX/CI
Mnemonic
PWM3
BATT
TACH8: Digital Input (Open Drain). Fan tachometer input to measure speed of Fan 8.
+12V3: Analog Input. Monitors 12 V Power Supply 3.
V
+1.5V: Monitors 1.5 V analog input.
+1.8V: Monitors 1.8 V analog input.
+2.5V: Monitors 2.5 V analog input.
V
+1.5V: Monitors 1.5 V analog input.
+1.8V: Monitors 1.8 V analog input.
+2.5V: Monitors 2.5 V analog input.
VR_HOT1: Digital Input Indicating Overtemperature Event on Voltage Regulator.
+1.2V1: 0 V to 1.2 V Analog Input. For example, can be used to monitor G
+3.3V: Analog Input. Monitors 3.3 V power supply.
VR_HOT2: Digital Input Indicating Overtemperature Event on Voltage Regulator.
+1.2V2: 0 V to 1.2 V Analog Input. For example, can be used to monitor FSB_V
V
FAN2MAX: Sets fan to maximum speed when a fan fault condition occurs.
Bidirectional open drain, active low I/O.
CI: An active high input that captures a chassis intrusion event in Bit 7 of the
digital status register. This bit remains set until cleared, as long as battery voltage
is applied to the V
THERM1: Can be reconfigured as a bidirectional THERM pin. Can be connected
to the PROCHOT output of the Intel® Pentium® 4 processor to time and monitor
PROCHOT assertions. Can be used as an output to signal overtemperature
conditions or for clock modulation purposes.
+1.5V1: 0 V to 1.5 V Analog Input. Can be used to monitor ICH.
GPIO7: Open−Drain I/O. General−purpose input/output.
VID6: Digital Input (Open Drain). Voltage supply readouts from CPU. This value
is read in to the VID value register (0x97).
THERM2: Can be reconfigured as a bidirectional THERM pin. Can be connected
to the PROCHOT output of the Intel Pentium 4 processor to time and monitor
PROCHOT assertions. Can be used as an output to signal overtemperature
conditions or for clock modulation purposes.
+1.5V2: 0 V to 1.5 V Analog Input. Can be used to monitor 3GIO.
GPIO8: Open−Drain I/O. General−purpose input/output.
Digital Output (Open Drain). Requires 10 kW typical pullup. Pulse−width
modulated output to control the speed of Fan 3.
VID4: Digital Input (Open Drain). Voltage supply readouts from CPU. This value
is read in to the VID value register (0x97).
GPIO5: Open−Drain I/O. General−purpose input/output.
PWM1: Digital Output (Open Drain). Requires 10 kW typical pullup. Pulse−width
modulated output to control the speed of Fan 1.
VID5: Digital Input (Open Drain). Voltage supply readouts from CPU. This value
is read in to the VID value register (0x97).
GPIO6: Open−Drain I/O. General−purpose input/output.
PWM2: Digital Output (Open Drain). Requires 10 kW typical pullup. Pulse−width
modulated output to control the speed of Fan 2.
CCP1
CCP2
BATT
: Analog Input. Monitors battery voltage, nominally 3.0 V.
: Monitors 1.2 V analog input.
: Monitors 1.2 V analog input.
http://onsemi.com
BATT
input, even when the ADT7462 is powered off.
4
Description
BIT
.
TT
.
THERM1
THERM2
Default
TACH8
PWM3
PWM1
PWM2
V
+1.8V
+2.5V
+3.3V
POR
BATT
CI