Smart Machine Smart Decision
SIM7000 _Hardware Design _V1.04 2018-1-31
5 Electrical Specifications
5.1 Absolute maximum ratings
Absolute maximum rating for digital and analog pins of SIM7000 are listed in the following table:
Table 28: Absolute maximum ratings
Voltage at digital pins
(RESET,GPIO,I2C,UART,PCM)
-0.3 - 2.1 V
The absolute parameter is tested when VBAT has the power but the PWRKEY has no pulled down.
If it is over the range, the module will be damage. If the power supply on VBAT pin had been shut
down, and the other pin should not have the voltage. Otherwise, it may lead to abnormally boot up
or damage the module.