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ADM1026 Datenblatt(PDF) 6 Page - Analog Devices

Teilenummer ADM1026
Bauteilbeschribung  Complete Thermal and System Management Controller
PDF  56 Pages
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Hersteller  AD [Analog Devices]
Direct Link  http://www.analog.com
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ADM1026 Datenblatt(HTML) 6 Page - Analog Devices

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ADM1026
Rev. A | Page 6 of 56
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
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ADM1026
TOP VIEW
(Not to Scale)
PIN 1 IDENTIFIER
GPIO9
GPIO8
FAN0/GPIO0
FAN1/GPIO1
FAN2/GPIO2
FAN3/GPIO3
3.3V MAIN
DGND
FAN4/GPIO4
FAN5/GPIO5
FAN6/GPIO6
FAN7/GPIO7
AIN5(0V – 3V)
AIN6(0V – 2.5V)
AIN7(0V – 2.5V)
+VCCP
+12 VIN
–12 VIN
+5 VIN
VBAT
D2+/AIN8(0V – 2.5V)
D2–/AIN9(0V – 2.5V)
D1+
D1–/NTESTIN
1
2
3
4
5
6
7
8
9
10
11
12
Figure 3. Pin Configuration
Table 3.
Pin No.
Mnemonic
Type
Description
1
GPIO9
Digital I/O1
General-purpose I/O pin that can be configured as digital inputs or outputs.
2
GPIO8
Digital I/O1
General-purpose I/O pin that can be configured as digital inputs or outputs.
3
FAN0/GPIO0
Digital I/O
Fan tachometer input with internal 10 kΩ pull-up resistor to 3.3 V STBY. Can be
reconfigured as a general-purpose, open drain, digital I/O pin.
4
FAN1/GPIO1
Digital I/O
Fan tachometer input with internal 10 kΩ pull-up resistor to 3.3 V STBY. Can be
reconfigured as a general-purpose, open drain, digital I/O pin.
5
FAN2/GPIO2
Digital I/O
Fan tachometer input with internal 10 kΩ pull-up resistor to 3.3 V STBY. Can be
reconfigured as a general-purpose, open drain, digital I/O pin.
6
FAN3/GPIO3
Digital I/O
Fan tachometer input with internal 10 kΩ pull-up resistor to 3.3 V STBY. Can be
reconfigured as a general-purpose, open drain, digital I/O pin.
7
3.3 V MAIN
Analog Input
Monitors the main 3.3 V system supply. Does not power the device.
8
DGND
Ground
Ground pin for digital circuits.
9
FAN4/GPIO4
Digital I/O
Fan tachometer input with internal 10 kΩ pull-up resistor to 3.3 V STBY. Can be
reconfigured as a general-purpose, open drain, digital I/O pin.
10
FAN5/GPIO5
Digital I/O
Fan tachometer input with internal 10 kΩ pull-up resistor to 3.3 V STBY. Can be
reconfigured as a general-purpose, open drain, digital I/O pin.
11
FAN6/GPIO6
Digital I/O
Fan tachometer input with internal 10 kΩ pull-up resistor to 3.3 V STBY. Can be
reconfigured as a general-purpose, open drain, digital I/O pin.
12
FAN7/GPIO7
Digital I/O
Fan tachometer input with internal 10 kΩ pull-up resistor to 3.3 V STBY. Can be
reconfigured as a general-purpose, open drain, digital I/O pin.
13
SCL
Digital Input
Open Drain Serial Bus Clock. Requires a 2.2 kΩ pull-up resistor.
14
SDA
Digital I/O
Serial Bus Data. Open drain I/O. Requires a 2.2 kΩ pull-up resistor.
15
ADD/NTESTOUT
Digital Input
This is a three-state input that controls the two LSBs of the serial bus address. It also
functions as the output for NAND tree testing.
16
CI
Digital Input
An active high input that captures a chassis intrusion event in Bit 6 of Status Register 4.
This bit remains set until cleared, as long as battery voltage is applied to the VBAT input,
even when the ADM1026 is powered off.
17
INT
Digital Output
Interrupt Request (Open Drain). The output is enabled when Bit 1 of the configuration
register is set to 1. The default state is disabled. It has an on-chip 100 kΩ pull-up resistor.



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