User's Guide

Smart Machine Smart Decision
SIM5320AL EVB User Guide 20.08.2014
9
4.2 SIM card interface
Figure 4: SIM card socket
Table 3: SIM card socket
Pin Signal Input/Output Description
1
V_USIM
O
USIM Card Power output automatic
output on USIM mode，one is
3.0V±10%, another is 1.8V±10%.
Current is about 10mA.
2 USIM_RESET O USIM Card Reset
3 USIM_CLK O USIM Card Clock
4 GND Ground
5 SIM_VPP O
V_USIM
6 USIM_DATA I/O
USIM Card data I/O