Smart Module Series
SC20_Series_Hardware_Design 20 / 133
2.3. Functional Diagram
The following figure shows a block diagram of SC20 series and illustrates the major functional parts.
Power management
Radio frequency
Baseband
LPDDR3 + eMMC flash (SC20-CE R1.1/-CEL R1.1, SC20-E/-EL, SC20-A/-AL, SC20-AU/-AUL,
SC20-J/-JL, SC20-EU)
NAND flash (SC20-AX, SC20-EX)
Peripheral interfaces
-- USB interface
-- UART interfaces
-- (U)SIM interfaces
-- SD card interface
-- GPIO interfaces
1
Within the operating temperature range, the module is 3GPP compliant.
baud rate up to 4 Mbps
UART2: 2-wire UART interface used for debugging
Motor Drive Interface
Drives ERM motor
SD Card Interface
Supports SD 3.0, 4-bit SDIO
Supports SD card hot-plug
I2C Interfaces
Three I2C interfaces
Used for peripherals such as camera, sensor, touch panel, etc.
ADC Interfaces
Three ADC interfaces
Used for battery voltage detection, battery temperature detection and
general-purpose ADC
Real Time Clock
Supported
Antenna Interfaces
Main antenna, Rx-diversity antenna, GNSS antenna and Wi-Fi/Bluetooth
antenna
Physical Characteristics
Size: (40.5 ±0.15) mm × (40.5 ±0.15) mm × (2.8 ±0.2) mm
Package: LCC + LGA
Weight: approx. 9.8 g
Temperature Range
Operating temperature range: -35 to +75 °C
1
Storage temperature range: -40 to +90 °C
Firmware Upgrade
Over USB interface
RoHS
All hardware components are fully compliant with EU RoHS directive