Table of Contents
Advertisement
3.2. Pin Assignment
The following figure shows the pin assignment of UG89 module.
1)
PWM1 / USB_BOOT
COUNTER
VBAT
GND
GND
GND
GND
GND
ANT_MAIN
GND
GND
GND
GND
RESERVED
RESERVED
RESERVED
RESERVED
GPIO5
POWER
NOTES
1. If PCM_CLK, and I2C_SCL are not used, it is recommended to mount a 33pF capacitor close to
each of the three pins to prevent interference from affecting RF's performance. Other unused pins
and RESERVED pins should be kept open, and all GND pins should be connected to the ground.
1)
means that these pins cannot be pulled up before startup.
UG89_Hardware_Design
55
56
57
58
93
92
59
60
117
116
115
61
94
118
62
63
95
119
64
65
96
120
66
97
98
67
68
73
74
69
70
71
72
USB
UART
Figure 2: Pin Assignment (Bottom View)
88
90
91
89
87
114
112
113
111
99
100
102
103
101
78
75
76
79
77
(U)SIM
PCM
UMTS/HSPA+ Module Series
UG89 Hardware Design
36
35
34
33
86
85
32
110
109
31
30
108
84
29
28
107
83
27
26
106
82
25
104
105
24
23
80
81
22
21
20
19
GND
ANT
RESERVED
GPIO4
GPIO3
RESET_N
DBG_CTS
DBG_RTS
DBG_TXD
DBG_RXD
I2C_SCL
I2C_SDA
PCM_CLK
PCM_DIN
PCM_SYNC
PCM_DOUT
VCORE
USIM_CLK
USIM_VDD
GPIO2
GPIO1
OTHERS
15 / 73
Advertisement
Table of Contents
