Table of Contents
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Contents
About the Document ................................................................................................................................... 2
Contents ....................................................................................................................................................... 3
Table Index ................................................................................................................................................... 6
Figure Index ................................................................................................................................................. 8
1
Introduction ........................................................................................................................................ 13
1.1.
Safety Information ..................................................................................................................... 14
2
Product Concept ................................................................................................................................ 15
2.1.
General Description .................................................................................................................. 15
2.2.
Key Features ............................................................................................................................. 19
2.3.
Functional Diagram ................................................................................................................... 22
2.4.
Evaluation Board ....................................................................................................................... 23
3
Application Interfaces ....................................................................................................................... 24
3.1.
General Description .................................................................................................................. 24
3.2.
Pin Assignment ......................................................................................................................... 25
3.3.
Pin Description .......................................................................................................................... 26
3.4.
Power Supply ............................................................................................................................ 42
3.4.1.
Power Supply Pins ......................................................................................................... 42
3.4.2.
Decrease Voltage Drop .................................................................................................. 42
3.4.3.
Reference Design for Power Supply .............................................................................. 43
3.5.
Turn on and off Scenarios ......................................................................................................... 45
3.5.1.
Turn on the Module Using PWRKEY ............................................................................. 45
3.5.2.
Turn on the Module Automatically .................................................................................. 47
3.5.3.
Reboot/Turn off the Module ........................................................................................... 47
3.6.
VRTC Interface ......................................................................................................................... 48
3.7.
Power Output ............................................................................................................................ 49
3.8.
Battery Charge and Management ............................................................................................. 49
3.9.
USB Interfaces .......................................................................................................................... 52
3.9.1.
Type-C Interface ............................................................................................................. 52
3.9.1.1.
USB Type-C Mode ............................................................................................... 52
3.9.1.2.
DisplayPort Mode ................................................................................................. 54
3.9.2.
Micro USB Interface ....................................................................................................... 55
3.9.3.
USB Interface Design Considerations ........................................................................... 57
3.10. UART Interfaces ........................................................................................................................ 58
3.11. (U)SIM Interfaces ...................................................................................................................... 60
3.12. SD Card Interface ..................................................................................................................... 62
3.13. GPIO Interfaces ........................................................................................................................ 64
3.14. I2C Interfaces ............................................................................................................................ 65
3.15. I2S Interfaces ............................................................................................................................ 66
3.16. SPI Interface ............................................................................................................................. 68
3.17. ADC Interfaces .......................................................................................................................... 68
SC66_Hardware_Design
Smart LTE Module Series
SC66 Hardware Design
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