Quectel UC20 Hardware Design page 36

The reset scenario is illustrated as the following figure.
NOTE
Use the RESET_N only when turning off the module by the command AT+QPOWD and the PWRKEY pin
failed.
UC20_Hardware_Design
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≥ 150ms
Reset pulse
Figure 13: Reference Circuit of RESET_N by Using Driving Circuit
S2
Figure 14: Reference Circuit of RESET_N by Using Button
VBAT
150ms
RESET_N
Module
RUNNING
Status
Figure 15: Timing of Resetting Module
4.7K
47K
RESET_N
TVS
Close to S2
≥ 5s
≥ 1.3V
V
IH
≤ 0.5V
V
IL
RESETTING
Confidential / Released
UMTS/HSPA Module Series
UC20 Hardware Design
RESET_N
RUNNING
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