Reset - Quectel EG915U Series Hardware Design

3.7. Reset

The RESET_N pin can be used to reset the module. The module can be reset by pulling the RESET_N
pin low for at least 100 ms and then releasing it. The RESET_N signal is sensitive to interference, so it is
recommended to route the trace as short as possible and surround it with ground.
Table 8: Pin Description of RESET_N
Pin Name
RESET_N
The recommended circuit is similar to the PWRKEY control circuit. An open drain/collector driver or button
can be used to control the RESET_N.
Figure 13: Reference Circuit of RESET_N by Using Driving Circuit
Figure 14: Reference Circuit of RESET_N by Using Button
The reset scenario is illustrated in the following figure.
EG915U_Series_Hardware_Design
Pin No. I/O
17 DI
≥ 100 ms
4.7K
Reset pulse
S2
Description
Reset the module
RESET_N
47K
RESET_N
TVS
Close to S2
LTE Standard Module Series
Comment
VBAT power domain.
If unused, keep it open.
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