Smart Machine Smart Decision
SIM7000 _Hardware Design _V1.00 2017-05-23
SIM Card data I/O, which has
been pulled up via a 10KR
resistor to SIM_VDD
internally. Do not pull it up or
down externally.
All lines of SIM
interface should be
protected against ESD.
Power output for SIM card, its
output Voltage depends on SIM
card type automatically. Its
output current is up to 50mA.
If used, keep a 10k Ω
resistor pulling up to
the VDD_EXT
Valid USB detection input with
3.5~5.25V detection voltage
Positive line of the differential,
bi-directional USB signal.
Negative line of the differential,
bi-directional USB signal.
If unused, keep them
open.
If unused, keep open,
or else pull them up
via 2.2KΩ resistors to
the VDD_EXT.
If unused, please keep
them open.
PCM data frame sync signal.