CLM920 TD3 LTE Module Hardware Usage Guide
Shanghai Yuge Information Technology co., LTD
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133
SDC1_CLK
134
SDC1_CMD
135
WAKE_WLAN
136
SDC1_EN
137
COEX_UART_RXD
138
COEX_UART_TXD
139
RESERVED
140
RESERVED
141
RESERVED
142
RESERVED
143
RESERVED
144
RESERVED
Table 3-2 IO parameter definition
Symbol sign
Description
IO
Two-way input and output
PI
power input
PO
Power Output
AI
Analog input
AO
Analog output
DI
Digital input
DO
Digital output
OD
Leaky open circuit
Table 3-3 Pin description
Power supply
Pin
Pin definition IO Functional description Remarks
57
VBAT
PI
Module power input
Power supply
needs to
guarantee 2A
current
58
VBAT
PI
Module power input
59
VBAT
PI
Module power input
60
VBAT
PI
Module power input
7
VDD_EXT
PO 1.8V output
Can provide
pull-up
(maximum
50MA) for
external GPIO.
Please keep it
floating when not
in use.