User's Manual

Smart Machine Smart Decision
SIM7020G_User Manual_V1.00 40 2019-01-15
5 Electrical Specifications
6 Electrical Specifications
6.1 Absolute maximum ratings
Absolute maximum rating for digital and analog pins of SIM7020G are listed in the following table:
Table 28: Absolute maximum ratings
Parameter
Min.
Typ.
Max.
Unit
Voltage at VBAT
-0.3
-
3.6
V
Voltage at USB_VBUS
-0.3
-
5.5
V
Voltage at digital pins (GPIO, UART etc)
-0.3
-
3.6
V
Voltage at digital pins (SIM)
-0.3
-
3.6
V
Voltage at PWRKEY/RESET/RTC_EINT/RTC_GPIO0
-0.3
-
3.6
6.2 Operating conditions
Table 29: Recommended operating ratings
Parameter
Min.
Typ.
Max.
Unit
Voltage at VBAT
2.1
3.3
3.6
V
Voltage at USB_VBUS
3.6
5.0
5.25
V
Table 30: 1.8V Digital I/O characteristics*
Parameter
Description
Min.
Typ.
Max.
Unit
V
IH
High-level input voltage
1.17
1.8
2.1
V
V
IL
Low-level input voltage
-0.3
0
0.63
V
V
OH
High-level output voltage
1.35
-
1.8
V
V
OL
Low-level output voltage
0
-
0.45
V
I
OH
High-level output current(no pull
down resistor)
4
mA
I
OL
Low-level output current(no pull
up resistor)
4
mA
I
IH
Input high leakage current (no
5
uA