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CLM920 TD3 LTE Module Hardware Usage Guide
Characteristic
Physical characteristics
Fixed way
Operating Voltage
Energy saving current
Standard SIM interface
USB2.0
Hardware reset interface Used to reset the module, low effective
Appli
cation
UART serial interface
interfa
ce
PCM interface
SPI interface
SD card interface
Shanghai Yuge Information Technology co., LTD
Table 2-2 Key Features
Description
32mm x 29mm x 2.4mm
LCC package, patch mount
3.3V - 4.2V Typical Voltage 3.7V
Standby current < 5mA
Support 3.0V/1.8V, support hot swap function
USB2.0 (High-Speed) (only supports slave mode),
data transfer rate up to 480Mbps
For AT commands, data transfer, GNSS NMEA output,
software debugging and software upgrades
USB driver: Support Windows XP, Windows Vista,
Windows 7, Windows 10, Windows CE 5.0/6.0/7.0
Linux 2.6 or higher
Android 2.3/4.0/4.2/4.4/5.0/6.0/7.1, etc.
Main serial port (8 lines):
For AT commands and data transfer
The baud rate is up to 921600bps and the default is
115200bps.
Support RTS and CTS hardware flow control
Debug serial port (2 lines):
Used to print module logs
For audio, requires an external codec chip
Supports 8-bit A-law, U-law and 16-bit linear
encoding formats
Support short frame mode
Support main mode
Maximum clock rate up to 26MHz
SPI can only be used as the master, the interface
voltage domain is 1.8V
Reusable I2S interface for external CODEC
4-bit SD/MMC interface
Clock frequency up to 50MHz
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