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SI7005-B-FM1R Datasheet(PDF) 10 Page - Silicon Laboratories |
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SI7005-B-FM1R Datasheet(HTML) 10 Page - Silicon Laboratories |
10 / 41 page Si7005 10 Rev. 1.2 2. Typical Application Circuits Note: If the Si7005 shares an I2C bus with other slave devices, it should be powered down when the master controller is com- municating with the other slave devices. The Si7005 can be powered down either by setting the CS signal to logic high or setting the VDD pin to 0 V. Refer to Figure 5 for an illustration of this method of powering the Si7005 from an MCU GPIO (the Si7005 VDD is powered from an MCU port pin). Figure 4. Typical Application Circuit Figure 5. Typical Application Circuit for Battery-Powered Applications SDA SCL VDD CSb GND R2 10K R1 10K U1 Si7005 DNC 13 DNC 14 SDA 4 DNC 6 SCL 3 DNC 5 DNC 2 GND 1 CS 15 DNC 16 DNC 17 DNC 18 C2 0.1uF C1 4.7uF SDA SCL Port Pin GND VDD R3 15.0 R1 10K U2 Si7005 DNC 13 DNC 14 SDA 4 DNC 6 SCL 3 DNC 5 DNC 2 GND 1 CS 15 DNC 16 DNC 17 DNC 18 C2 0.1uF R2 10K C1 4.7uF |
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