Quectel EC200U Series Hardware Design page 22

VDD_EXT 7
Turn on/off
Pin Name Pin No.
PWRKEY 21
RESET_N 20
Status Indication
Pin Name Pin No.
STATUS 61
NET_MODE 5
NET_STATUS 6
USB Interface
Pin Name Pin No.
USB_VBUS 71
USB_DP 69
USB_DM 70
EC200U_Series_Hardware_Design
Provide 1.8 V for
PO
external circuit
I/O Description
Turn on/off the
DI
module
DI Reset the module
I/O Description
Indicate module's
DO
operating status
Indicate the
module's
DO
network activity
status
Indicate the
module's
DO
network registration
mode
I/O Description
Used for USB
AI
detection
USB differential data
AIO
bus (+)
USB differential data
AIO
bus (-)
LTE Standard Module Series
Vnom = 1.8 V
I max = 50 mA
O
DC Characteristics Comment
V max = 0.5 V
IL
V max = 0.5 V
IL
DC Characteristics Comment
V min = 1.35 V
OH
V max = 0.45 V
OL
V min = 1.35 V
OH
V max = 0.45 V
OL
DC Characteristics Comment
Vmax = 5.25 V
Vmin = 3.5 V
Vnom = 5.0 V
Power supply for
external GPIO's
pull-up circuits. Add
2.2 μF capacitor if
used.
If unused, keep it
open.
VBAT power domain
VBAT power domain.
If unused, keep it
open. Active low.
1.8 V power domain.
If unused, keep it
open.
1.8 V power domain.
If unused, keep it
open.
1.8 V power domain.
If unused, keep it
open.
Typical: 5.0 V
If unused, keep it
open.
Require differential
impedance of 90 Ω.
USB 2.0 compliant. If
unused, keep it open.
Require differential
impedance of 90 Ω.
USB 2.0 compliant. If
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