User's Manual

Smart Machine Smart Decision
SIM868_Hardware_Design_V1.00 15 2016-06-20
3. Package Information
3.1. Pin Out Diagram
Figure 2: Pin out Diagram (Top view)
3.2. Pin Description
Table 6: Pin description
Pin name Pin number I/O Description Comment
Power supply
GPS_VBAT 34 I Power supply for GNSS
VBAT 35 I Power supply for GSM
VDD_EXT 40 O 2.8V power output
If these pins are unused,
keep open.