Table of Contents
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Table 4: Pin Description
Power Supply
Pin Name
Pin No.
241, 242,
VBAT_BB
244
109, 111,
112, 114
VBAT_RF
235, 236
238, 239
VDD_EXT
68
LDO_2P7
57
VDD_WIFI_V
276
M
VDD_WIFI_VH
277
12, 18, 26, 33, 42, 86, 92, 98, 115, 117, 118, 120, 121, 124–131, 133–135, 137, 138, 140,
141, 144–151, 153, 155, 156, 158, 159, 160, 162, 164, 165, 167, 168, 171–174, 176, 177,
GND
180, 182, 183, 185, 186, 189, 191, 192, 194, 195, 198, 199, 201–203, 206, 208, 209, 211,
212, 215, 217, 218, 220, 221, 230, 232, 233, 234, 237, 240, 307–400
Turn on/off
Pin Name
Pin No.
PWRKEY
7
PON_1
248
RESET
8
(U)SIM Interfaces
Pin Name
Pin No.
AG521R-NA_QuecOpen_Hardware_Design
I/O
Description
Power supply for the
module's baseband
PI
part
Power supply for the
PI
module's RF part
1.8 V output power
PO
supply for external
circuits
Output power supply
PO
for SD card
Power supply for
PO
Wi-Fi
Power supply for
PO
Wi-Fi
I/O
Description
Turn on/off the
DI
module
Pulling it high will
DI
turn on the module
automatically
DI
Reset the module
I/O
Description
Automotive Module Series
AG521R-NA QuecOpen Hardware Design
DC
Comment
Characteristics
Vmax = 4.3 V
It must be provided
Vmin = 3.3 V
with sufficient current
Vnorm = 3.8 V
up to 0.8 A.
Vmax = 4.3 V
It must be provided
Vmin = 3.3 V
with sufficient current
Vnorm = 3.8 V
up to 2 A.
Power supply for
Vnorm = 1.8 V
external GPIO's pull up
I
max = 50 mA
O
circuits.
Vnorm = 2.95 V
If unused, keep it open.
Vnorm = 1.35 V
If unused, keep it open.
Vnorm = 1.95 V
If unused, keep it open.
DC
Comment
Characteristics
V
max = 1.89 V
Internally pulled up to
IH
V
min = 1.17 V
1.8 V.
IH
V
max = 0.63 V
Active low.
IL
Valid trigger range:
0.78–1.89 V.
Active high
V
max = 1.89 V
Internally pulled up to
IH
V
min = 1.17 V
1.8 V.
IH
V
max = 0.63 V
Active low.
IL
DC
Comment
Characteristics
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