5G Module Series
RG255C-GL_Mini_PCIe_Hardware_Design 15 / 57
DC characteristics include power domain and rate current.
Table 5: Pin Description
OC
Open Collector
PI
Power Input
PO
Power Output
Pin No.
Pin Name
I/O
Description
DC
Characteristics
Comment
1
WAKE#
OC
Wake up the host
2
VCC_3V3
PI
Power supply for the
module
Vmin = 3.0 V
Vnom = 3.3 V
Vmax = 3.6 V
3
RESERVED
Reserved
4
GND
Ground
5
RESERVED
Reserved
6
NC
Not connected
7
RESERVED
Reserved
8
USIM_VDD
PO
(U)SIM card power
supply
High-voltage
：
Vmax = 3.1 V
Vnom = 3.0 V
Vmin = 2.6 V
Low-voltage:
Vmax = 1.9 V
Vnom = 1.8 V
Vmin = 1.4 V
9
GND
Ground
10
USIM_DATA
DIO
(U)SIM card data
USIM_VDD
11
RXD
DI
Receive
3.3 V
12
USIM_CLK
DO
(U)SIM card clock
USIM_VDD
13
TXD
DO
Transmit
3.3 V
