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LC709203FXE-04MH データシート(PDF) 9 Page - ON Semiconductor |
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LC709203FXE-04MH データシート(HTML) 9 Page - ON Semiconductor |
9 / 23 page LC709203F www.onsemi.com 9 Wake up from Sleep mode (Not to scale) (Not to scale) Figure 6. I2C Wake up Timing Diagram To wake up from Sleep mode, and to start I2C communication, Host side must set SDA low prior to the I2C communication. The Fuel Gauge LSI enables I2C communication after the TWU time period which is measured from the falling edge of SDA, as above timing chart. This “Wake up condition” is invalid for the following two cases. 1) After TWR1 timing following the falling edge of SDA, the Fuel Gauge LSI “Wake up condition” goes into autonomous disable. Once I2C communication is started, the operation doesn’t go into disable until the TWR2 timing has elapsed after STOP condition (below case). 2) After TWR2 timing following I2C Bus STOP condition, the Fuel gauge LSI “Wake up condition” goes into autonomous disable. If the “Wake up condition” goes into disable, set SDA low to once again wake up from the Sleep mode prior to the I2C communication. If Operational mode is set, it is possible to start I2C communication without this “Wake up operation”. Notice for I 2C communication shared with another device When the I2C Bus (on which the Fuel Gauge LSI is connected) is shared with another device the Fuel Gauge LSI must be in its operation mode before the other Device starts I2C communication. Enable I 2C communication SCL TWR2 SDA STOP condition Disable I 2C communication Sleep mode TSP Enable I 2C communication SDA TWU TWR1 Disable I 2C communication Disable I 2C communication Sleep mode |
同様の部品番号 - LC709203FXE-04MH |
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同様の説明 - LC709203FXE-04MH |
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