Quectel SC20 Series - Page 33

Smart Module Series
SC20_Series_Hardware_Design 32 / 133
2
GPIO_68 and GPIO_88 cannot be pulled up during start-up.
3
As for SC20-CE R1.1/-CEL R1.1, SC20-E/-EL, SC20-A/-AL, SC20-AU/-AUL, SC20-J/-JL, SC20-EU, pins 105, 116, 117,
118 and 119 are GPIO_0, GPIO_11, GPIO_10, GPIO_9 and GPIO_8 respectively; as for SC20-AX, SC20-EX, pins 105,
116, 117, 118 and 119 are GPIO_15, GPIO_3, GPIO_2, GPIO_1 and GPIO_0 respectively
.
Pin Name
Pin
No.
I/O Description DC Characteristics
Comment
ANT_MAIN 87 AIO
Main antenna
interface
50 Ω impedance.
ANT_DRX 131 AI
Rx-diversity
antenna interface
ANT_GNSS 121 AI
GNSS antenna
interface
ANT_WIFI/BT 77 AIO
Wi-Fi/Bluetooth
antenna interface
GPIO Interfaces
Pin Name
Pin
No.
I/O Description DC Characteristics
Comment
GPIO_23 33 DIO
General-purpose
input/output
V
IL
max = 0.63 V
V
IH
min = 1.17 V
V
OL
max = 0.45 V
V
OH
min = 1.4 V
1.8 V power
domain.
GPIO_32 90 DIO
General-purpose
input/output
GPIO_31 97 DIO
General-purpose
input/output
GPIO_92 98 DIO
General-purpose
input/output
GPIO_88
2
99 DIO
General-purpose
input/output
GPIO_89 100 DIO
General-purpose
input/output
GPIO_69 101 DIO
General-purpose
input/output
GPIO_68
2
102 DIO
General-purpose
input/output
GPIO_97 103 DIO
General-purpose
input/output
GPIO_110 104 DIO
General-purpose
input/output
GPIO_0
105
3
DIO
General-purpose
input/output
GPIO_15