參數(shù)資料
型號: AMD1027
廠商: Analog Devices, Inc.
英文描述: dBCOOL Remote Thermal Controller and Voltage Monitor
中文描述: dBCOOL遠程熱控制器和電壓監(jiān)視器
文件頁數(shù): 5/56頁
文件大?。?/td> 1072K
代理商: AMD1027
REV. A
ADM1027
–5–
PIN FUNCTION DESCRIPTIONS
Pin
Mnemonic
Description
1
2
3
4
SDA
SCL
GND
V
CC
Digital I/O (Open-Drain). SMBus bidirectional serial data. Requires SMBus pull-up.
Digital Input (Open-Drain). SMBus serial clock input. Requires SMBus pull-up.
Ground Pin for the ADM1027.
Power Supply. Can be powered by 3.3 V standby if monitoring in low power states is required.
V
CC
is also monitored through this pin. The ADM1027 can also be powered from a 5 V supply.
Setting Bit 7 of Configuration Register 1 (Reg. 0x40) rescales the V
CC
input attenuators to
correctly measure a 5 V supply.
Digital Input (Open-Drain). Voltage supply readouts from CPU. This value is read into the
VID register (Reg. 0x43).
Digital Input (Open-Drain). Voltage supply readouts from CPU. This value is read into the
VID register (Reg. 0x43).
Digital Input (Open-Drain). Voltage supply readouts from CPU. This value is read into the
VID register (Reg. 0x43).
Digital Input (Open-Drain). Voltage supply readouts from CPU. This value is read into the
VID register (Reg. 0x43).
Digital Input (Open-Drain). Fan tachometer input to measure speed of Fan 3. Can be
reconfigured as an analog input (AIN3) to measure the speed of 2-wire fans.
Digital Output (Open-Drain). Requires 10 k
W
typical pull-up. Pulsewidth modulated output
to control Fan 2 speed. This pin may be reconfigured as an
SMBALERT
interrupt output to
signal out-of-limit conditions.
Digital Input (Open-Drain). Fan tachometer input to measure speed of Fan 1. Can be
reconfigured as an analog input (AIN1) to measure the speed of 2-wire fans.
Digital Input (Open-Drain). Fan tachometer input to measure speed of Fan 2. Can be
reconfigured as an analog input (AIN2) to measure the speed of 2-wire fans.
Digital I/O (Open-Drain). Pulsewidth modulated output to control Fan 3 speed. Requires
10 k
W
typical pull-up. If pulled low on power-up, this places the ADM1027 into address
select mode, and the state of Pin 14 will determine the ADM1027’s slave address.
Digital Input (Open-Drain). Fan tachometer input to measure speed of Fan 4. Can be reconfigured
as an analog input (AIN4) to measure the speed of 2-wire fans. If in address select mode,
this pin determines the SMBus device address.
Cathode Connection to Second Thermal Diode.
Anode Connection to Second Thermal Diode.
Cathode Connection to First Thermal Diode.
Anode Connection to First Thermal Diode.
Digital Input (Open-Drain). Voltage supply readouts from CPU. This value is read into the
VID register (Reg. 0x43).
Analog Input. Monitors 5 V power supply.
Analog Input. Monitors 12 V power supply.
Analog Input. Monitors 2.5 V supply, typically a chipset voltage.
Analog Input. Monitors processor core voltage (0 V to 3 V).
Digital Output (Open-Drain). Pulsewidth modulated output to control Fan 1 speed. Requires
10 k
W
typical pull-up. Also functions as the output from the XOR tree in XOR test mode.
5
VID0
6
VID1
7
VID2
8
VID3
9
TACH3
10
PWM2/
SMBALERT
11
TACH1
12
TACH2
13
PWM3/
ADDRESS ENABLE
14
TACH4/ADDRESS SELECT
15
16
17
18
19
D2–
D2+
D1–
D1+
VID4
20
21
22
23
24
5V
IN
12V
IN
2.5V
IN
V
CCP
PWM1/XTO
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