SimCom SIM7000G User Manual

Smart Machine Smart Decision
SIM7000 _Hardware Design _V1.00 2017-05-23
SIM interface
SIM_DATA
31
I/O,PU
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.
SIM_RST
33
DO
SIM Reset
SIM_CLK
32
DO
SIM clock
SIM_VDD
30
PO
Power output for SIM card, its
output Voltage depends on SIM
card type automatically. Its
output current is up to 50mA.
SIM_DET
34
DI
SIM card detecting input
If used, keep a 10k Ω
resistor pulling up to
the VDD_EXT
USB
USB_VBUS
24
DI,PD
Valid USB detection input with
3.5~5.25V detection voltage
USB_DP
27
I/O
Positive line of the differential,
bi-directional USB signal.
USB_DM
28
I/O
Negative line of the differential,
bi-directional USB signal.
UART interface
DTR
3
DI,PU
DTE get ready
If unused, keep them
open.
RI
4
DOH
Ring Indicator
DCD
5
DOH
Carrier detects
CTS
7
DOH
Clear to Send
RTS
8
DI,PU
Request to send
TXD
9
DOH
Transmit Data
RXD
10
DI,PU
Receive Data
I2C interface
I2C_SDA
37
I/O
I2C clock output
If unused, keep open,
or else pull them up
via 2.2KΩ resistors to
the VDD_EXT.
I2C_SCL
38
DO
I2C data input/output
PCM interface
PCM_CLK
11
DO
PCM data bit clock.
If unused, please keep
them open.
PCM_SYNC
12
DO
PCM data frame sync signal.
PCM_DIN
13
DI
PCM data input.
PCM_DOUT
14
DO
PCM data output.

SimCom SIM7000G Specifications

General

Brand	SimCom
Model	SIM7000G
Category	Control Unit
Language	English