Other Parts Discussed in Thread: TCAN1043
Dear:
External Connection Description of TCAN1043: INH pin is NC state.
Two operating:
State 1: After power-on, WAKE pulls to high, works for a period of time, and then pulls en and STB pins to low. The MCU enters the low power mode. This state of sending data on the bus can successfully wake up the MCU.
State 2: Power on, do not operate, work for a period of time, then pull WAKE to high level, en and STB to low level, at this time, MCU enters low power consumption. This state bus data does not wake up the MCU.
Question:
1. Why do different timing of wake pin pulling to high level lead to different results?
2. Actual measurement, why the MCU of state 1 is 100uA more than that of state 2 in the low-power state?