Quectel UC20 User Manual

UMTS/HSPA Module Series
UC20 Hardware Design
UC20_Hardware_Design Confidential / Released 18 / 84
3.2. Pin Assignment
The following figure shows the pin assignment of the UC20 module.
35 36 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
1
3
4
5
6
7
2
WAKEUP_IN
AP_READY
SLEEP_IND
W_DISABLE#
NET_MODE
NET_STATUS
VDD_EXT
GND
GND
DBG_RXD
DBG_TXD
USIM_PRESENCE
USIM_VDD
USIM_DATA
USIM_CLK
USIM_RST
VRTC
8
9
10
11
12
13
14
15
16
17
18
19
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55
USIM_GND
GND
RESET_N
PWRKEY
AGND
RESERVED
PCM_IN
PCM_OUT
PCM_SYNC
PCM_CLK
RESERVED
RESERVED RESERVED RESERVED RESERVED RESERVED
VDD_2V85
ANT_DIV
GND
GND
USB_VBUS
USB_DM
USB_DP
RXD
TXD
DTR
RTS CTS
DCD
RI
STATUS
VBAT_BB
VBAT_BB
VBAT_RF
VBAT_RF
GND
RESERVED
GND
GND
ANT_MAIN
GND
ANT_GNSS
GND
ADC1
RESERVED
I2C_SDA
I2C_SCL
RESERVED
RESERVED
RESERVED
RESERVED
ADC0
GND
GND
GND
73
74
75
76
77
78
79
80
81
82
83
84
100
101
102
106
107
111
112
103
104
109
105
110
89
94
98
88
93
97
86
91
96
85
90
95
99
87
92
Power
USB
UART
USIM PCM
ANT
GND
RESERVED
OTHERS
108
Figure 2: Pin Assignment (Top View)
1. Keep all reserved pins and unused pins unconnected.
2. GND pads 85~112 should be connected to ground in the design, and RESERVED pads 73~84
should be unconnected.
NOTES

Quectel UC20 Specifications

General

Brand	Quectel
Model	UC20
Category	Control Unit
Language	English