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ADT7490ARQZ Datasheet(PDF) 8 Page - Analog Devices |
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ADT7490ARQZ Datasheet(HTML) 8 Page - Analog Devices |
8 / 76 page ADT7490 Rev. 0 | Page 8 of 76 Pin No. Mnemonic Type Description 20 +5VIN Analog Input Monitors 5 V Supply Using Internal Resistor Dividers. 21 +12VIN Analog Input Monitors 12 V Supply Using Internal Resistor Dividers. 22 +2.5VIN/ Analog Input Monitors 2.5 V Supply Using Internal Resistor Dividers. THERM Alternatively, this pin can be reconfigured as a bidirectional THERM pin. Can be connected to PROCHOT output of processor to time and monitor PROCHOT assertions. Can be used as an output to signal overtemperature conditions or for clock modulation purposes. 23 VCCP Analog Input Monitors CPU VCC Voltage (to maximum of 3.0 V). All voltage inputs can have their resistor dividers removed allowing for full-scale input of 2.25 V of ADC channel. 24 PWM1/ Digital Output Pulse Width Modulated Output to Control FAN 1 Speed. Open drain requires 10 kΩ typical pull-up. XTO Also functions as the output for the XNOR tree test enable mode. Table 5. Comparison of ADT7490 and ADT7476A Configurations Pin Number ADT7490 ADT7476A 1 SDA SDA 2 SCL SCL 3 GND GND 4 VCC VCC 5 GPIO1 VID0/GPIO0 6 GPIO2 VID1/GPIO1 7 PECI VID2/GPIO2 8 VTT VID3/GPIO3 9 TACH3 TACH3 10 PWM2/SMBALERT PWM2/SMBALERT 11 TACH1 TACH1 12 TACH2 TACH2 13 PWM3/ADDREN PWM3/ADDREN 14 TACH4/THERM/SMBALERT/ADDR SELECT TACH4/THERM/SMBALERT/GPIO6/ADDR SELECT 15 D2− D2− 16 D2+ D2+ 17 D1− D1− 18 D1+ D1+ 19 IMON VID4/GPIO4 20 +5VIN +5VIN 21 +12VIN +12VIN/VID5 22 +2.5VIN/THERM +2.5VIN/THERM 23 VCCP VCCP 24 PWM1/XTO PWM1/XTO |
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