參數(shù)資料
型號： ADT7462ACPZ-500RL7
廠商： ON SEMICONDUCTOR
元件分類： 溫度/濕度傳感器
英文描述： DIGITAL TEMP SENSOR-SERIAL, 8BIT(s), 4Cel, SQUARE, SURFACE MOUNT
封裝： 5 X 5 MM, LFCSP-32
文件頁數(shù)： 67/88頁
文件大?。?/td> 836K
代理商： ADT7462ACPZ-500RL7
ADT7462
Rev. 2 | Page 7 of 88 | www.onsemi.com
Pin No.
Mnemonic
Description
POR Default
+12V2: Analog Input. Monitors 12 V Power Supply 2. Attenuators switched on
by default.
9
SCL
Digital Input (Open Drain). SMBus serial clock input. Requires SMBus pull-up.
SCL
10
SDA
Digital I/O (Open Drain). SMBus bidirectional serial data. Requires SMBus pull-
up.
SDA
11
ADD
The state of this pin on power-up determines the SMBus device address.
ADD
12
ALERT
Active Low Open-Drain Digital Output. Requires 10 kΩ typical pull-up. The
ALERT pin is used to signal out-of-limit comparisons of temperature, voltage,
and fan speed. This is compatible with SMBus ALERT.
ALERT
13
PWM4/+3.3V
PWM4: Digital Output (Open Drain). Requires 10 kΩ typical pull-up. Pulse-
width modulated output to control the speed of Fan 4.
PWM4
+3.3V: Analog Input. Monitors 3.3 V power supply.
14
RESET
Active Low Open-Drain Digital I/O. Power-on reset, 5 mA driver (weak 100 kΩ
pull-up), active low output (100 kΩ pull-up) with a 180 ms typical pulse width.
RESET is asserted whenever VCC is below the reset threshold. It remains
asserted for approximately 180 ms after VCC rises above the reset threshold. Pin
14 also functions as an active low RESET input and resets all unlocked registers
to their default values.
RESET
15
D1+/+2.5V/+1.8V
D1+: Anode Connection to Thermal Diode 1.
D1+
+2.5V: Monitors 2.5 V analog input.
+1.8V: Monitors 1.8 V analog input.
16
D1/SCSI_TERM1
D1: Cathode Connection to Thermal Diode 1.
D1
SCSI_TERM1: Digital Input, SCSI Termination 1.
17
D2+
Anode Connection to Thermal Diode 2.
D2+
18
D2
Cathode Connection to Thermal Diode 2.
D2
19
D3+/+1.25V/+0.9V
D3+: Anode Connection to Thermal Diode 3.
D3+
+1.25V: Monitors 1.25 V analog input.
+0.9V: Monitors 0.9 V analog input.
20
D3/SCSI_TERM2
D3: Cathode connection to Thermal Diode 3.
D3
SCSI_TERM2: Digital Input, SCSI Termination 2.
21
TACH7/+5V
TACH7: Digital Input (Open Drain). Fan tachometer input to measure speed of
Fan 7.
TACH7
+5V: Analog Input. Monitors 5 V power supply.
22
TACH8/+12V3
TACH8: Digital Input (Open Drain). Fan tachometer input to measure speed of
Fan 8.
TACH8
+12V3: Analog Input. Monitors 12 V Power Supply 3.
23
VCCP1/+1.5V/+1.8V/+2.5V
VCCP1: Monitors 1.2 V analog input.
+1.8V
+1.5V: Monitors 1.5 V analog input.
+1.8V: Monitors 1.8 V analog input.
+2.5V: Monitors 2.5 V analog input.
24
VCCP2/+1.5V/+1.8V/+2.5V
VCCP2: Monitors 1.2 V analog input.
+2.5V
+1.5V: Monitors 1.5 V analog input.
+1.8V: Monitors 1.8 V analog input.
+2.5V: Monitors 2.5 V analog input.
25
VR_HOT1/+1.2V1/+3.3V
VR_HOT1: Digital Input Indicating Overtemperature Event on Voltage
Regulator.
+3.3V
+1.2V1: 0 V to 1.2 V Analog Input. For example, can be used to monitor GBIT.
+3.3V: Analog Input. Monitors 3.3 V power supply.
26
VR_HOT2/+1.2V2/VBATT
VR_HOT2: Digital Input Indicating Overtemperature Event on Voltage
Regulator.
VBATT
+1.2V2: 0 V to 1.2 V Analog Input. For example, can be used to monitor FSB_VTT.
VBATT: Analog Input. Monitors battery voltage, nominally 3 V.
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