Product Info

Smart LTE Module Series
SC20 Hardware Design
SC20_Hardware_Design Confidential / Released
2-18
/ 122
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
2 groups of (U)SIM interfaces
Support USIM/SIM card: 1.8V, 2.95V
Support Dual SIM Dual Standby (supported by default)
UART Interfaces
2 UART interfaces: UART1 and UART2
 UART1: 4-wire UART interface with RTS/CTS hardware flow control;
baud rate up to 4Mbps
 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
3 groups of I2C
Used for peripherals such as camera, sensor, touch panel, etc.
ADC Interfaces
Support 3 ADC interfaces
Used for input voltage sense, battery temperature detection and general
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)
Firmware Upgrade
Over USB interface
RoHS
All hardware components are fully compliant with EU RoHS directive