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TLE8457CSJ 数据表(PDF) 7 Page - Infineon Technologies AG |
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TLE8457CSJ 数据表(HTML) 7 Page - Infineon Technologies AG |
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7 / 31 page  Data Sheet 7 Rev. 1.1 2018-10-15 TLE8457C / TLE8457D LIN Transceiver with integrated voltage regulator Functional description 6 Bus wake-up detection RxD is set “low” for signalling the bus wake-up event to the microcontroller. 7 Bus wake-up detection in standby mode RxD is set “low” for signalling the bus wake-up event to the microcontroller. Operating mode is not changed. Table 2 Operating mode control Mode Control Functionality Comments EN TxD VCC NRST RxD Sleep Low Low Off Low Floating – Standby Low High1) 1) The TxD input has a pull-up structure to VCC and is per default set to logic “high” if left open. On High2) 2) NRST is logic “low” during VCC undervoltage and while issuing a reset pulse to the microcontroller. Low High RxD “low” after a bus wake-up RxD “high” after power-up or reset Normal operation High Low High On High2) Low High RxD reflects the signal on the bus TxD driven by the microcontroller Table 1 Operation mode transitions (cont’d) No. Reason for transition Comment |
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