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ADM1026JST Scheda tecnica(PDF) 6 Page - Analog Devices |
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ADM1026JST Scheda tecnica(HTML) 6 Page - Analog Devices |
6 / 56 page ADM1026 Rev. A | Page 6 of 56 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS 36 35 34 33 32 31 30 29 28 27 26 25 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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