SIM Tech SimCom SIM340 Hardware Design page 47

SIM340 Hardware Design
Table 17 : Pin description (Molex SIM card holder)
Pin Signal
SIM_VDD
C1
SIM_RST
C2
SIM_CLK
C3
GND
C4
GND
C5
VPP
C6
SIM_DATA
C7
SIM_PRESENCE Detect SIM Card Presence
C8
SIM340_HD_V3.09
Figure 30: Molex 91228 SIM card holder
Description
SIM Card Power supply, it can identify
automatically the SIM Card power mode， one is
3.0V±10%, another is 1.8V±10%. Current is
about 10mA.
SIM Card Reset
SIM Card Clock
Connect to GND
Connect to GND
Not connect
SIM Card data I/O
47
18.03.2009