Product Info

Smart LTE Module Series
SC20 Hardware Design
SC20_Hardware_Design 20 / 130
Audio output:
Class AB stereo headphone output
Class AB earpiece differential output
Class D speaker differential amplifier output
Audio Codec
HR, FR, EFR, AMR, AMR-WB
USB Interface
Compliant with USB 2.0 specification; the data transfer rate can reach up
to 480Mbps
Used for AT command communication, data transmission, software
debugging and firmware upgrade
Support USB OTG (Need additional 5V power supply chip)
USB Driver: Support Windows XP, Windows Vista, Windows 7/8/8.1
(U)SIM Interfaces
Two (U)SIM interfaces
Support USIM/SIM card: 1.8V and 2.95V
Support Dual SIM Dual Standby (supported by default)
UART Interfaces
Two UART interfaces: UART1 and UART2
⚫ UART1: 4-wire UART interface with RTS/CTS hardware flow control;
baud rate up to 3.75Mbps
⚫ UART2: 2-wire UART interface used for debugging
Motor Drive Interface
Drive ERM motor
SD Card Interface
Support SD 3.0, 4-bit SDIO
Support hot-plug
I2C Interfaces
Three I2C interfaces
Used for peripherals such as camera, sensor, touch panel, etc.
ADC Interfaces
Support three ADC interfaces
Used for input voltage sense, battery temperature detection and gen
eral-purpose ADC
Real Time Clock
Supported
Antenna Interfaces
Main antenna, DRX antenna, GNSS antenna and Wi-Fi/BT antenna
Physical Characteristics
Size: (40.5±0.15) × (40.5±0.15) × (2.8±0.2)mm
Package: LCC
Weight: approx. 9.8g
Temperature Range
Operating temperature range: -35°C~+65°C
1)
Extended temperature range: -40°C~+75°C
2)
Storage temperature range: -40°C ~ +90°C
Firmware Upgrade
Over USB interface
RoHS
All hardware components are fully compliant with EU RoHS directive
NOTES