User Manual

Smart Machine Smart Decision
SIM7600A_User Manual_V1.01 2017-10-10
14
69 RI 70 DCD
71 TXD 72 DTR
73 PCM_OUT 74 PCM_IN
75 PCM_SYNC 76 PCM_CLK
77 GND 78 GND
79 GNSS_ANT 80 GND
81 GND 82 MAIN_ANT
83
COEX1*
84 COEX2
85
BOOT_CFG0*
86
COEX3*
87 GPIO77
*Note: Before the normal power up, pin48 cannot be pulled up.
2.2 Pin Description
Table 4: IO parameters definition
Pin type Description
PI Power input
PO Power output
AI Analog input
AIO Analog input/output
I/O Bidirectional input /output
DI Digital input
DO Digital output
DOH Digital output with high level
DOL Digital output with low level
PU Pull up
PD Pull down
Table 5: Pin description
Pin name Pin No.
Default
status
Description Comment
Power supply
VBAT
38,39,
62,63
PI
Power supply, voltage range:
3.4～4.2V.
VDD_EXT 44 PO
LDO power output for other
external circuits with Max
150mA current output. Its
output voltage is 0V by default.
If unused, keep it
open.