Quectel LPWA Series User Manual

LPWA Module Series
BG950A-GL&BG951A-GL_Hardware_Design
21
/ 84
Require differential
impedance of 90 Ω.
(U)SIM Interface
Pin Name
Pin
No.
I/O
Description
DC Characteristics
Comment
USIM_DET
42
DI
(U)SIM card hot-plug
detect
V
IL
min = -0.2 V
V
IL
max = 0.54 V
V
IH
min = 1.26 V
V
IH
max = 2.0 V
1.8 V power
domain.
If unused, keep this
pin open.
USIM_VDD
43
PO
(U)SIM card power
supply
Vmax = 1.9 V
Vmin = 1.7 V
Only 1.8 V (U)SIM
card is supported.
USIM_RST
44
DO
(U)SIM card reset
V
OL
max = 0.36 V
V
OH
min = 1.44 V
1.8 V power
domain.
USIM_DATA
45
DIO
(U)SIM card data
V
IL
min = -0.2 V
V
IL
max = 0.54 V
V
IH
min = 1.26 V
V
IH
max = 2.0 V
V
OL
max = 0.36 V
V
OH
min = 1.44 V
USIM_CLK
46
DO
(U)SIM card clock
V
OL
max = 0.36 V
V
OH
min = 1.44 V
USIM_GND
47
Specified ground for
(U)SIM card
Main UART Interface
Pin Name
Pin
No.
I/O
Description
DC Characteristics
Comment
MAIN_DTR
30
DI
Main UART data terminal
ready
V
IL
min = -0.2 V
V
IL
max = 0.54 V
V
IH
min = 1.26 V
V
IH
max = 2.0 V
1.8 V power
domain.
If these pins are
unused, keep them
open.
MAIN_RXD
34
DI
Main UART receive
MAIN_TXD
35
DO
Main UART transmit
V
OL
max = 0.36 V
V
OH
min = 1.44 V
MAIN_CTS
36
DO
DTE clear to send signal
from DCE (Connect to
DTE’s RTS)
MAIN_RTS
37
DI
DTE request to send
signal from DCE
(Connect to DTE’s RTS)
V
IL
min = -0.2 V
V
IL
max = 0.54 V
V
IH
min = 1.26 V
V
IH
max = 2.0 V
MAIN_DCD
38
DO
Main UART data carrier
detect
V
OL
max = 0.36 V
V
OH
min = 1.44 V
MAIN_RI*
39
DO
Main UART ring
indication

Quectel LPWA Series Specifications

General

Brand	Quectel
Model	LPWA Series
Category	GSM/GPRS Modules
Language	English