Sim Card Interface Characteristics; Vdd_Ext Characteristics; Sim1_Vdd And Sim2_Vdd Characteristics; Vrtc Characteristics - SIM Tech SIMCom SIM900-DS Hardware Design

5.4

SIM Card Interface Characteristics

Table 17: 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
5.5

VDD_EXT Characteristics

Table 18: VDD_EXT characteristics
Symbol Parameter
V Output voltage
O
I Output current
O
5.6

SIM1_VDD and SIM2_VDD Characteristics

Table 19: SIM1_VDD and SIM2_VDD characteristics
Symbol Parameter
SIM1_VDD ，
Output voltage
SIM2_VDD
I Output current
O
5.7

VRTC Characteristics

Table 20: VRTC characteristics
SIM900-DS_Hardware Design_V1.00
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
- -
38
Smart Machine Smart Decision
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
2013-01-20