Users Manual

Smart Module Series
SC200R Series Hardware Design
SC200R_Series_Hardware_Design 39 / 125
The turning on scenario is illustrated in the following figure.
Figure 7: Timing of Turning on the Module
1. When the module is powered on for the first time, its timing of turning on may be different from that
shown above.
2. Make sure that VBAT is stable before pulling down PWRKEY. It is recommended to wait until VBAT to
be stable at 4.0 V for at least 30 ms before pulling down PWRKEY. Additionally, PWRKEY cannot be
pulled down all the time.
NOTES