EFM32WG332 Datasheet, PDF (74/76 Pages) Silicon Laboratories – Operation from backup battery when main power drains out

...the world's most energy friendly microcontrollers
List of Tables
1.1. Ordering Information ................................................................................................................................ 2
2.1. Configuration Summary ............................................................................................................................ 7
3.1. Absolute Maximum Ratings ..................................................................................................................... 10
3.2. General Operating Conditions .................................................................................................................. 10
3.3. Environmental ....................................................................................................................................... 11
3.4. Current Consumption ............................................................................................................................. 11
3.5. Energy Modes Transitions ...................................................................................................................... 17
3.6. Power Management ............................................................................................................................... 18
3.7. Flash .................................................................................................................................................. 19
3.8. GPIO .................................................................................................................................................. 19
3.9. LFXO .................................................................................................................................................. 27
3.10. HFXO ................................................................................................................................................ 27
3.11. LFRCO .............................................................................................................................................. 28
3.12. HFRCO ............................................................................................................................................. 29
3.13. AUXHFRCO ....................................................................................................................................... 32
3.14. ULFRCO ............................................................................................................................................ 32
3.15. ADC .................................................................................................................................................. 32
3.16. DAC .................................................................................................................................................. 42
3.17. OPAMP ............................................................................................................................................. 43
3.18. ACMP ............................................................................................................................................... 47
3.19. VCMP ............................................................................................................................................... 49
3.20. I2C Standard-mode (Sm) ...................................................................................................................... 49
3.21. I2C Fast-mode (Fm) ............................................................................................................................ 50
3.22. I2C Fast-mode Plus (Fm+) .................................................................................................................... 50
3.23. SPI Master Timing ............................................................................................................................... 51
3.24. SPI Master Timing with SSSEARLY and SMSDELAY ................................................................................. 51
3.25. SPI Slave Timing ................................................................................................................................ 52
3.26. SPI Slave Timing with SSSEARLY and SMSDELAY .................................................................................. 52
3.27. Digital Peripherals ............................................................................................................................... 53
4.1. Device Pinout ....................................................................................................................................... 54
4.2. Alternate functionality overview ................................................................................................................ 57
4.3. GPIO Pinout ........................................................................................................................................ 61
4.4. QFP64 (Dimensions in mm) .................................................................................................................... 62
5.1. QFP64 PCB Land Pattern Dimensions (Dimensions in mm) .......................................................................... 64
5.2. QFP64 PCB Solder Mask Dimensions (Dimensions in mm) ........................................................................... 65
5.3. QFP64 PCB Stencil Design Dimensions (Dimensions in mm) ........................................................................ 66
2014-06-13 - EFM32WG332FXX - d0191_Rev1.40
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