Data Sheet
     Smart Machine Smart Decision 
SIM800F_Hardware Design_V1.00 52    2015-07-31 
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  SIM_VDD Characteristics 
Table 42: 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 
6.6  VDD_EXT Characteristics 
Table 43: 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 
6.7  VRTC Characteristics 
Table 44: 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 










