Reset Function - SimCom SIM7000 Hardware Design

3.2.3

Reset Function

SIM7000 can be reset by pulling the RESET pin to ground.
Note: This function is only used as an emergency reset. The RESET pin will be ineffectiveness
in the power off mode.
The RESET pin has been pulled up to 1.8V with a 40KΩ resistor internally. So it does not need to
be pulled up externally. It is strongly recommended to put a100nF capacitor and an ESD protection
diode close to the RESET pin. Please refer to the following figure for the recommended reference
circuit.
Table 10: RESET pin electronic characteristic
Symbol Description
The active low level time impulse on RESET pin
T
reset
to reset module
V Input high level voltage
IH
V Input low level voltage
IL
SIM7000 _Hardware Design _V1.04
Figure 12: Reference reset circuit
Smart Machine Smart Decision
Min. Typ. Max.
252
1.2 1.8 2.1
-0.3 0 0.8
2018-1-31
Unit
ms
V
V