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ADT7462ACPZ-R7 Datasheet(PDF) 14 Page - ON Semiconductor

Part # ADT7462ACPZ-R7
Description  Flexible Temperature, Voltage Monitor, and System Fan Controller
PDF  81 Pages
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

ADT7462ACPZ-R7 Datasheet(HTML) 14 Page - ON Semiconductor

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ADT7462
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14
Configuration Option 5
Configuration Option 5 is used to monitor temperature,
voltages, and fans for Processor 2 in a dual processor system.
Features of Configuration Option 5 include the following:
• One local and two remote temperature channels
• Up to three PWM drives and up to six TACH inputs
• Voltage monitoring
• Two +12V
• +3.3V
• Mem_Core (+1.969V)
• +1.8 V
• Two +1.5V
• +1.2V (VCCP2)
• RESET I/O
Figure 23 shows the pin configuration when Configuration
Option 5 is chosen.
Figure 23. Configuration Option 5
1
TACH1
2
TACH2
3
TACH3
4
TACH4
+12V1
8
+12V2
24
VCCP2
23
+1.8V
22
TACH8
21
TACH7
20
D3–
19
D3+
ADT7462
TOP VIEW
(Not to Scale)
VCC
GND
PIN 1
INDICATOR
5
6
7
18
17
D2−
D2+
Table 6. Configuration Option 5
Pin
Function
Configuration Register
Bit Value
1†
TACH1
Pin Configuration Reg 1
Bit 4 = 1
2†
TACH2
Pin Configuration Reg 1
Bit 3 = 1
3†
TACH3
Pin Configuration Reg 1
Bit 2 = 1
4†
TACH4
Pin Configuration Reg 1
Bit 1 = 1
7
+12V1
Pin Configuration Reg 1
Bit 0 = 0
8
+12V2
Pin Configuration Reg 2
Bit 7 = 0
13
+3.3V
Pin Configuration Reg 2
Bit 6 = 0
15
+2.5V
Pin Configuration Reg 1
Bit 6 = 0
16
SCSI_
TERM1
Pin Configuration Reg 1
Bit 6 = 0
19
D3+
Pin Configuration Reg 1
Bit 5 = 1
20
D3−
Pin Configuration Reg 1
Bit 5 = 1
21
TACH7
Pin Configuration Reg 2
Bit 3 = 1
22
TACH8
Pin Configuration Reg 2
Bit 2 = 1
23
+1.8V
Pin Configuration Reg 2
Bits [1:0] = 10
24
VCCP2
Pin Configuration Reg 3
Bits [7:6] = 00
25
+1.2V
Pin Configuration Reg 3
Bits [5:4] = 01
26
VR_HOT2
Pin Configuration Reg 3
Bits [3:2] = 1×
27
FAN2MAX
Pin Configuration Reg 3
Bit 1 = 0
28
†*
THERM1/
+1.5V
Pin Configuration Reg 4
See Table 51
29*
THERM2/
+1.5V
Pin Configuration Reg 4
See Table 51
31†
PWM1
Pin Configuration Reg 4
Bit 3 = 1
32†
PWM2
Pin Configuration Reg 4
Bit 2 = 1
†If VIDs are selected, these pins are configured as VIDs. To
enable VIDs, set Bit 7 of Pin Configuration Register 1 (0x10) = 1.
*It is not possible to configure +1.5V monitoring on Pin 29 and
THERM1 on Pin 28. Pin 28 must both be configured as either
+1.5V monitoring or as THERM I/O (see Table 47).



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