User's Manual

Smart Machine Smart Decision
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2. Detail Block Diagram
Figure 3: Block diagram of SIM808
3. Electrical and Reliability Characteristics
3.1. 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 SIM808.
Table 1: Absolute maximum ratings
Symbol Min Typ Max Unit
VBAT - - 4.5 V
Current 0 2.0 A
VCHG - 12 V
I
I
*
- 4 16 mA
I
O
*
- 4 16 mA
*
These parameters are for digital interface pins, such as keypad, GPIO, I
2
C, UART,PWMs and PCM.
3.2. Digital Interface Characteristics
Table 2: Digital interface characteristics
Symbol Parameter Min Typ Max Unit