SimCom SIM908 User Manual page 11

SIM908 Document
4.4 SIM Card Interface Characteristics
Table 8: SIM card interface characteristics
Symbol Parameter
I High-level input current
IH
I Low-level input current
IL
V High-level input voltage
IH
V Low-level input voltage
IL
V High-level output voltage
OH
V Low-level output voltage
OL
4.5 VDD_EXT Characteristics
Table 9: VDD_EXT characteristics
Symbol Parameter
V Output voltage
O
I Output current
O
4.6 SIM_VDD Characteristics
Table 10: SIM_VDD characteristics
Symbol Parameter
V Output voltage
O
I Output current
O
4.7 VRTC Characteristics
Table 11: VRTC characteristics
Symbol Parameter
V VRTC input voltage
RTC-IN
Min Typ
-10 -
-10 -
1.4 -
2.4 -
- -
1.7 -
2.7 -
- -
- -
Min Typ
2.70 2.80
- -
Min Typ
2.75 2.9
1.65 1.80
- -
Min Typ
2.00 3.00
- 11 -
Max Unit
10 uA
10 uA
- V
- V
0.4 V
2.4 V
- V
- V
0.1 V
0.1 V
Max Unit
2.95 V
10 mA
Max Unit
3.00
V
1.95
10 mA
Max Unit
3.15 V