EFM32WG842 Datasheet, PDF (74/78 Pages) Silicon Laboratories – Operation from backup battery when main power drains out

...the world's most energy friendly microcontrollers
Table of Contents
1. Ordering Information .................................................................................................................................. 2
2. System Summary ...................................................................................................................................... 3
2.1. System Introduction ......................................................................................................................... 3
2.2. Configuration Summary .................................................................................................................... 7
2.3. Memory Map ................................................................................................................................. 8
3. Electrical Characteristics ........................................................................................................................... 10
3.1. Test Conditions ............................................................................................................................. 10
3.2. Absolute Maximum Ratings ............................................................................................................. 10
3.3. General Operating Conditions .......................................................................................................... 10
3.4. Current Consumption ..................................................................................................................... 11
3.5. Transition between Energy Modes .................................................................................................... 17
3.6. Power Management ....................................................................................................................... 18
3.7. Flash .......................................................................................................................................... 18
3.8. General Purpose Input Output ......................................................................................................... 19
3.9. Oscillators .................................................................................................................................... 27
3.10. Analog Digital Converter (ADC) ...................................................................................................... 32
3.11. Digital Analog Converter (DAC) ...................................................................................................... 42
3.12. Operational Amplifier (OPAMP) ...................................................................................................... 43
3.13. Analog Comparator (ACMP) .......................................................................................................... 47
3.14. Voltage Comparator (VCMP) ......................................................................................................... 49
3.15. LCD .......................................................................................................................................... 50
3.16. I2C ........................................................................................................................................... 51
3.17. USART SPI ................................................................................................................................ 52
3.18. Digital Peripherals ....................................................................................................................... 54
4. Pinout and Package ................................................................................................................................. 55
4.1. Pinout ......................................................................................................................................... 55
4.2. Alternate Functionality Pinout .......................................................................................................... 58
4.3. GPIO Pinout Overview ................................................................................................................... 63
4.4. Opamp Pinout Overview ................................................................................................................. 63
4.5. TQFP64 Package .......................................................................................................................... 64
5. PCB Layout and Soldering ........................................................................................................................ 66
5.1. Recommended PCB Layout ............................................................................................................ 66
5.2. Soldering Information ..................................................................................................................... 68
6. Chip Marking, Revision and Errata .............................................................................................................. 69
6.1. Chip Marking ................................................................................................................................ 69
6.2. Revision ...................................................................................................................................... 69
6.3. Errata ......................................................................................................................................... 69
7. Revision History ...................................................................................................................................... 70
7.1. Revision 1.40 ............................................................................................................................... 70
7.2. Revision 1.31 ............................................................................................................................... 70
7.3. Revision 1.30 ............................................................................................................................... 70
7.4. Revision 1.20 ............................................................................................................................... 71
7.5. Revision 1.10 ............................................................................................................................... 71
7.6. Revision 1.00 ............................................................................................................................... 71
7.7. Revision 0.95 ............................................................................................................................... 71
7.8. Revision 0.90 ............................................................................................................................... 71
A. Disclaimer and Trademarks ....................................................................................................................... 72
A.1. Disclaimer ................................................................................................................................... 72
A.2. Trademark Information ................................................................................................................... 72
B. Contact Information ................................................................................................................................. 73
B.1. ................................................................................................................................................. 73
2014-06-13 - EFM32WG842FXX - d0196_Rev1.40
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