Product Info

LTE Standard Module Series
EC25 Series Hardware Design
EC25_Series_Hardware_Design 49 / 134
Table 8: Pin Definition of 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.
Reset pulse
RESET_N
4.7K
47K
150–460 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
The reset scenario is illustrated in the following figure.
Pin Name
Pin No.
I/O
Description
Comment
RESET_N
20
DI
Reset the module
1.8 V power domain