Smart Machine Smart Decision
SIM800C_Hardware_Design_V1.02
41
2015-4-27
6.
Electrical, Reliability and Radio Characteristics
6.1
Absolute Maximum Ratings
The absolute maximum ratings stated in following table are stress ratings under non-operating conditions.
Stresses beyond any of these limits will cause permanent damage to SIM800C.
Table 27: Absolute maximum ratings
Symbol
Min
Typ
Max
Unit
VBAT
-
-
4.5
V
Current
0
-
2.0
A
USB_VBUS
-
-
12
V
I
I
*
-
4
16
mA
I
O
*
-
4
16
mA
*
These parameters are for digital interface pins,
GPIO, and UART.
6.2
Recommended Operating Conditions
Table 28: Recommended operating conditions
Symbol
Parameter
Min
Typ
Max
Unit
VBAT
Power supply voltage
3.4
4.0
4.4
V
T
OPER
Operating temperature
-40
+25
+85
℃
T
STG
Storage temperature
-45
+90
℃
6.3
Digital Interface Characteristics
Table 29: Digital interface characteristics
Symbol
Parameter
Min
Typ
Max
Unit
V
IH
High-level input current
2.1
-
3.1
V
V
IL
Low-level input current
-0.3
-
0.7
V
V
OH
High-level output voltage
2.4
-
-
V
V
OL
Low-level output voltage
-
-
0.4
V
Note: These parameters are for digital interface pins, such as keypad, GPIO and UART.
6.4
SIM Card Interface Characteristics
Table 30: SIM card interface characteristics
Symbol
Parameter
Min
Typ
Max
Unit
I
IH
High-level input current
-1.0
-
1.0
uA
I
IL
Low-level input current
-1.0
-
1.0
uA
