LTE Standard Module Series
EC200U_Series_Hardware_Design 37 / 94
3.7.3. Reset the Module
The RESET_N can be used to reset the module. The module can be reset by driving RESET_N 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 11: Pin Description of RESET_N
Pin Name
Pin No.
I/O
Description
Comment
RESET_N
20
DI
Reset the module
VBAT power domain
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.
Reset pulse
RESET_N
4.7K
47K
≥
1
00 ms
Figure 14: Reference Circuit of RESET_N by Using Driving Circuit
RESET_N
S2
Close to S2
TVS
Figure 15: Reference Circuit of RESET_N by Using Button
