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ADT7462ACPZ-R7 Datasheet(PDF) 13 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) 13 Page - ON Semiconductor

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ADT7462
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Configuration Option 4
Configuration Option 4 is used to monitor temperature,
voltages, and fans for Processor 1 in a dual processor system.
Features of Configuration Option 4 include the following:
• One local and two remote temperature channels
• Up to four PWM drives and six TACH inputs
• Up to eight voltages monitored
• +12V
• +5V
• +3.3V
• Two +1.5V
• +1.2V (VCCP1)
• +0.984V (Mem_VTT)
• VBATT
• THERM I/O
• VRD input
• RESET I/O
Figure 22 shows the pin configuration when Configuration
Option 4 is chosen.
Figure 22. Configuration Option 4
PIN 1
INDICATOR
1
TACH1
2
TACH2
3
TACH3
4
TACH4
TACH5
8
TACH6
24
+2.5V
23
VCCP1
22
+12V3
21
+5V
20
SCSI_TERM2
19
+0.9V
ADT7462
TOP VIEW
(Not to Scale)
VCC
GND
5
6
7
D2−
D2+
18
17
Table 5. Configuration Option 4
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
TACH5
Pin Configuration Reg 1
Bit 0 = 1
8
TACH6
Pin Configuration Reg 2
Bit 7 = 1
13
PWM4
Pin Configuration Reg 2
Bit 6 = 1
15
D1+
Pin Configuration Reg 1
Bit 6 = 1
16
D1−
Pin Configuration Reg 1
Bit 6 = 1
19
+0.9V
Pin Configuration Reg 1
Bit 5 = 0
20
SCSI_
TERM2
Pin Configuration Reg 1
Bit 5 = 0
21
+5V
Pin Configuration Reg 2
Bit 3 = 0
22
+12V3
Pin Configuration Reg 2
Bit 2 = 0
23
VCCP1
Pin Configuration Reg 2
Bits [1:0] = 00
24
+2.5V
Pin Configuration Reg 3
Bits [7:6] = 01
25
VR_HOT1
Pin Configuration Reg 3
Bits [5:4] = 1×
26
VBATT
Pin Configuration Reg 3
Bits [3:2] = 00
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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