hardware design v2.00

Smart Machine Smart Decision
SIM908_Hardware Design_V2.00 2012.05.07
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6.4 SIM Card Interface Characteristics
Table 23: SIM card interface characteristics
Symbol Parameter Min Typ Max Unit
I
IH
High-level input current -10 - 10 uA
I
IL
Low-level input current -10 - 10 uA
1.4 - - V
V
IH
High-level input voltage
2.4 - - V
- - 0.4 V
V
IL
Low-level input voltage
2.4 V
1.7 - - V
V
OH
High-level output voltage
2.7 - - V
- - 0.1 V
V
OL
Low-level output voltage
- - 0.1 V
6.5 VDD_EXT Characteristics
Table 24: VDD_EXT characteristics
Symbol Parameter Min Typ Max Unit
V
O
Output voltage 2.70 2.80 2.95 V
I
O
Output current - - 10 mA
6.6 SIM_VDD Characteristics
Table 25: SIM_VDD characteristics
Symbol Parameter Min Typ Max Unit
2.75 2.9 3.00
V
O
Output voltage
1.65 1.80 1.95
V
I
O
Output current - - 10 mA
6.7 VRTC Characteristics
Table 26: VRTC characteristics
Symbol Parameter Min Typ Max Unit
V
RTC-IN
VRTC input voltage 2.00 3.00 3.15 V
I
RTC-IN
VRTC input current - 2 - uA
V
RTC-OUT
VRTC output voltage - 3.00 - V
I
RTC-OUT
VRTC output current - 10 - uA