Pin Assignment - Quectel LTE-A Series Hardware Design

3.1. Pin Assignment

The following figure shows the pin assignment of EG18.
GND
GND
GND
GND
RESERVED
VDD_P2
DBG_RXD
DBG_TXD
GPIO_1
GPIO_2
USB_BOOT
GND
GND
OTG_PWR_EN
SLEEP_IND
COEX_UART_TX
COEX_UART_RX
NET_MODE
GND
WLAN_EN
WAKEUP_IN
W_DISABLE#
I2S_MCLK
GND
GND
VBAT_BB
VBAT_BB
GND
GND
GPIO_3
WAKE_ON_WIRELESS
GPIO_4
VDD_RF
BT_TXD
BT_CTS
BT_RXD
BT_RTS
GND
VDD_EXT
WLAN_SLP_CLK
NET_STATUS
STATUS
GPIO_5
ADC0
GND
ADC1
RESERVED
EG18_Hardware_Design
130
131
132
133
134
135
136
137
215 216 217
138
139
140
141
224 225 226
142
143
144
145
233 234 235
146
147
148
149
242 243 244
150
151
152
153
251 252 253
154
155
156
157
260 261 262
158
159
160
161
269 270 271
162
163
164
165
278 279 280
166
167
168
169
287 288 289
170
171
172
173
174
175
176
296
Power Pins GND Pins
PCIe Pins PCM Pins
ADC Pins UART Pins
Figure 2: Pin Assignment (Top View)
218 219 220 221 222
227 228 229 230 231
236 237 238 239 240
245 246 247 248 249
254 255 256 257 258
263 264 265 266 267
272 273 274 275 276
281 282 283 284 285
290 291 292 293 294
GPIO and Other Pins RESERVED Pins
(U)SIM Pins USB Pins
SPI Pins
ANT Pins
LTE-A Module Series
EG18 Hardware Design
VBAT_RF
88
VBAT_RF
87
86 VBAT_RF
85 VBAT_RF
84
GND
83 GND
82
GND
GND
81
223
USIM2_CLK
80
79
USIM2_RST
78
USIM2_DET
77
USIM2_DATA
232
76
GND
75
GND
USIM2_VDD
74
73 RFFE_DATA
241
72
RESERVED
RFFE_CLK
71
GND
70
69 GND
250
PCM_OUT
68
PCM_CLK
67
66 PCM_IN
65
259 PCM_SYNC
GND
64
GND
63
62 DTR
RI
61
268
60
TXD
59 DCD
58 RXD
57
277 RTS
CTS
56
55
GND
GND
54
SD_CLK
53
286
SD_DET
52
SD_CMD
51
SD_DATA1
50
SD_DATA0
49
295
SD_DATA3
48
47 SD_DATA2
46 SD_VDD
45 GND
GND
44
I2C_SCL
43
I2C_SDA
42
I2C Pins
SDIO Pins
CLK Pins
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