Product Info

Smart LTE Module Series
SC66 Hardware Design
SC66_Hardware_Design 21 / 139
Audio Codec
EVRC, EVRC-B, EVRC-WB; G.711, G.729A/AB; GSM-FR, GSM-EFR,
GSM-HR; AMR-NB, AMR-WB, AMR-eAMR, AMR-BeAMR
USB Interfaces
Compliant with USB 3.1 and 2.0 specifications, with transmission rates up to
5Gbps on USB 3.1 and 480Mbps on USB 2.0
Support USB OTG
Used for AT command communication, data transmission, software
debugging and firmware upgrade
UART Interfaces
4 UART Interfaces: UART6, UART1, DEBUG UART and LPI_UART_2
 UART6: 4-
wire UART interface with RTS/CTS hardware flow control,
max rate up to 4Mbps
 UART1: 2-wire UART interface
 DEBUG UART: 2-wire UART interface used for debugging

LPI_UART_2: 2-wire low power UART interface
SD Card Interface
Support SD 3.0
Support SD card hot-plug
(U)SIM Interfaces
2 (U)SIM interfaces
Support USIM/SIM card: 1.8V/2.95V
Support Dual SIM Dual Standby (supported by default)
I2C Interfaces
Support up to 5 I
2C interfaces, used for peripherals such as TP, camera,
sensor, etc.
I2S Interfaces 2 I2S interfaces
ADC Interfaces 2 general-purpose ADC interfaces
SPI Interface 1 SPI interface, only support master mode
Real Time Clock Supported
Antenna Interfaces
Main antenna, Rx-diversity antenna, GNSS antenna, Wi-Fi/BT antenna, FM*
antenna and WIFI_MIMO antenna interfaces
Physical Characteristics
Size: (43.0±0.15)mm × (44.0±0.15)mm × (2.85±0.2)mm
Package: LCC＋LGA
Weight: approx. 12.0g
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 A/B OTA firmware upgrade via USB
RoHS All hardware components are fully compliant with EU RoHS directive