LTE Module Series
EG95 Hardware Design
EG95_Hardware_Design 19 / 81
transmitting burst.
VDD_EXT
29
PO
Provide 1.8V for
external circuit
Vnorm=1.8V
I
O
max=50mA
Power supply for
external GPIO’s pull up
circuits.
GND
3, 31, 48,
50, 54, 55,
58, 59, 61,
62, 67~74,
79~82,
89~91,
100~106
Ground
Turn on/off
Pin Name
Pin No.
I/O Description
DC Characteristics
Comment
PWRKEY
15
DI
Turn on/off the
module
V
IH
max=2.1V
V
IH
min=1.3V
V
IL
max=0.5V
The output voltage is
0.8V because of the
diode drop in the
Qualcomm chipset.
RESET_N
17
DI
Reset signal of the
module
V
IH
max=2.1V
V
IH
min=1.3V
V
IL
max=0.5V
Status Indication
Pin Name
Pin No.
I/O Description
DC Characteristics
Comment
STATUS
20
DO
Indicate the
module’s operation
status
V
O
in=1.35V
V
OL
max=0.45V
1.8V power domain.
If unused, keep this
pin open.
NETLIGHT
21
DO
Indicate the
module’d network
activity status
V
O
in=1.35V
V
OL
max=0.45V
1.8V power domain.
If unused, keep it
open.
USB Interface
Pin Name
Pin No.
I/O Description
DC Characteristics
Comment
USB_VBUS
8
PI
USB detection
Vnorm=5.0V
USB_DP
9
IO
USB differential data
bus (+)
Compliant with USB
2.0 standard
specification.
Require differential
impedance of 90Ω.
USB_DM
10
IO
USB differential data
bus (-)
Compliant with USB
2.0 standard
specification.
Require differential
impedance of 90Ω.
