LTE Standard Module Series
EC200T Series Hardware Design
EC200T_Series_Hardware_Design 28 / 90
RF Interface
Pin Name
Pin No.
I/O
Description
DC Characteristics Comment
ANT_DIV 35 AI
Diversity antenna
interface
50
Ω
impedance.
If unused, keep it
open.
ANT_MAIN 49 IO
Main antenna
interface
50
Ω
impedance.
Other Interfaces
Pin Name
Pin No.
I/O
Description
DC Characteristics Comment
WAKEUP_IN* 1
DI
Wake up the module
V
IL
min = -0.3 V
V
IL
max = 0.6 V
V
IH
min = 1.2 V
V
IH
max = 2.0 V
1.8 V power domain.
If unused, keep it
open.
AP_READY 2
DI
Application processor
ready
V
IL
min = -0.3 V
V
IL
max = 0.6 V
V
IH
min = 1.2 V
V
IH
max = 2.0 V
1.8 V power domain.
If unused, keep it
open.
W_DISABLE# 4
DI
Airplane mode control
V
IL
min = -0.3 V
V
IL
max = 0.6 V
V
IH
min = 1.2 V
V
IH
max = 2.0 V
1.8 V power domain.
Pull-up by default.
In low voltage level,
module can enter into
airplane mode.
If unused, keep it
open.
FORCE_
USB_BOOT
115 DI
Force the module into
emergency download
mode
V
IL
min = -0.3 V
V
IL
max = 0.6 V
V
IH
min = 1.2 V
V
IH
max = 2.0 V
1.8 V power domain.
Active high.
It is recommended to
reserve test points.
RESERVED Pins
Pin Name
Pin No.
I/O
Description
DC Characteristics Comment
RESERVED
3, 18,
37–40, 43,
47, 55,
73–84,
113, 114,
116, 117,
119–126,
128,
137–144
Reserved
Keep these pins
unconnected.
