23
PERn0
UART_CTS
DI
UART sending clear
24
3.3Vaux
VBAT
PI
Power input
25
PERp0
UART_RTS
DO
UART requests sending
26
GND
GND
GND
27
GND
GND
GND
28
1.5V
ONOFF
AI
Power on
Low level effective
29
GND
GND
GND
30
SMB_CLK
NC
31
PETn0
NC
32
SMB_DATA
WAKEUP_OUT
DO
Module wakeup host
33
PETp0
NC
34
GND
GND
GND
35
GND
GND
GND
36
USB_D-
USB_DM
IO
USB differential signal-
37
GND
GND
GND
38
USB_D+
USB_DP
IO
USB differential
39
3.3Vaux
VBAT
PI
Power input
40
GND
GND
GND
41
3.3Vaux
VBAT
PI
Power input
42
LED_WWAN#
LED_WWAN
OC
LED indicator
43
GND
GND
GND
44
LED_WLAN#
UIM_DET
DI
SIM Hot plug detection
45
RESERVED
PCM_CLK
DO
PCM Clock pulse
46
LED_WPAN#
LED
OC
LED indicator
47
RESERVED
PCM_DOUT
DO
PCM sending data
48
1.5V
NC
49
RESERVED
PCM_DIN
DI
PCM receiving data
50
GND
GND
GND
51
RESERVED
PCM_SYNC
DO
PCM Frame synchronization signal
52
3.3Vaux
VBAT
PI
Power input
NOTE:
The IO interface level of module is 1.8V (SIM interface level supports 1.8V and 3.3V)
The RESEVERED and NC PIN is suspended
3.3 Power interface
The power interface includes two parts:
VBAT for module power supply
USIM_PWR for SIM power supply
Power PIN definition
PIN
Name
I/0
Definition
Min Voltage
Typical Voltage
Max Voltage
2/24/39/41/52
VBAT
PI
Module power
3.3
3.7
4.2
Содержание CLM920
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