Product Info

Smart LTE Module Series
SC66 Hardware Design
SC66_Hardware_Design 3 / 118
Contents
About the Document ................................................................................................................................... 2
Contents ....................................................................................................................................................... 3
Table Index ................................................................................................................................................... 6
Figure Index ................................................................................................................................................. 8
1 Introduction ........................................................................................................................................ 10
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 ....................................................................................................................... 24
3 Application Interfaces ....................................................................................................................... 25
3.1. General Description .................................................................................................................. 25
3.2. Pin Assignment ......................................................................................................................... 26
3.3. Pin Description .......................................................................................................................... 27
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 Module Using the PWRKEY ............................................................................. 45
3.5.2. Restart the Module ......................................................................................................... 46
3.6. VRTC Interface ......................................................................................................................... 47
3.7. Power Output ............................................................................................................................ 48
3.8. Battery Charge and Management ............................................................................................. 48
3.9. USB Interface ............................................................................................................................ 51
3.9.1. TYPE-C Interfaces ......................................................................................................... 51
3.9.2. DP Interfaces .................................................................................................................. 54
3.9.3. Host ................................................................................................................................ 56
3.10. UART Interfaces ........................................................................................................................ 56
3.11. (U)SIM Interfaces ...................................................................................................................... 58
3.12. SD Card Interface ..................................................................................................................... 61
3.13. GPIO Interfaces ........................................................................................................................ 63
3.14. I2C Interfaces ............................................................................................................................ 64
3.15. I2S Interface .............................................................................................................................. 65
3.16. SPI Interfaces ............................................................................................................................ 66
3.17. ADC Interfaces .......................................................................................................................... 66
3.18. LCM Interfaces .......................................................................................................................... 67