PAC5250 datasheet(3/70 Pages) ACTIVE-SEMI

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PAC5250

Power Application Controller

13. ADC with Auto-Sampling Sequencer.............................................................................................................. 46

13.1. Block Diagram........................................................................................................................................ 46

13.2. Functional Description............................................................................................................................ 46

13.2.1. ADC................................................................................................................................................ 46

13.2.2. Auto-Sampling Sequencer............................................................................................................. 46

13.2.3. EMUX Control................................................................................................................................ 47

13.3. Electrical Characteristics........................................................................................................................ 47

14. Memory System............................................................................................................................................. 48

14.1. Features................................................................................................................................................. 48

14.2. Block Diagram........................................................................................................................................ 48

14.3. Functional Description............................................................................................................................ 48

14.3.1. Program and Data FLASH............................................................................................................. 48

14.3.2. SRAM............................................................................................................................................. 48

14.4. Electrical Characteristics........................................................................................................................ 49

15. Clock Control System..................................................................................................................................... 50

15.1. Features................................................................................................................................................. 50

15.2. Block Diagram........................................................................................................................................ 50

15.3. Functional Description............................................................................................................................ 51

15.3.1. Free Running Clock (FRCLK)........................................................................................................ 51

15.3.2. Fast Clock (FCLK).......................................................................................................................... 51

15.3.3. High-Speed Clock (HCLK).............................................................................................................51

15.3.4. Auxiliary Clock (ACLK)................................................................................................................... 51

15.3.5. Clock Gating................................................................................................................................... 51

15.3.6. Ring Oscillator (ROSC).................................................................................................................. 51

15.3.7. Trimmed 4MHz RC Oscillator......................................................................................................... 51

15.3.8. Internal Slow RC Oscillator............................................................................................................ 51

15.3.9. Crystal Oscillator Driver................................................................................................................. 51

15.3.10. External Clock Input..................................................................................................................... 51

15.3.11. PLL............................................................................................................................................... 51

15.4. Electrical Characteristics........................................................................................................................ 52

16. ARM Cortex-M0 Microcontroller Core............................................................................................................ 53

16.1. Features................................................................................................................................................. 53

16.2. Block Diagram........................................................................................................................................ 53

16.3. Functional Description............................................................................................................................ 53

16.4. Electrical Characteristics........................................................................................................................ 54

16.5. Typical Performance Characteristics...................................................................................................... 54

17. I/O Controller.................................................................................................................................................. 55

17.1. Features................................................................................................................................................. 55

17.2. Block Diagram........................................................................................................................................ 55

17.3. Functional Description............................................................................................................................ 55

17.4. Electrical Characteristics........................................................................................................................ 56

18. Serial Interface............................................................................................................................................... 57

18.1. Block Diagram........................................................................................................................................ 57

18.2. Functional Description............................................................................................................................ 57

18.2.1. I2C Controller.................................................................................................................................. 57

18.3. UART Controller..................................................................................................................................... 58

18.4. SPI Controller......................................................................................................................................... 58

18.5. Dynamic Characteristics........................................................................................................................ 59

19. Timers............................................................................................................................................................ 62

19.1. Block Diagram........................................................................................................................................ 62

19.2. Functional Description............................................................................................................................ 63

19.2.1. Timer A........................................................................................................................................... 63

19.2.2. Timer B........................................................................................................................................... 63

19.2.3. Timer C.......................................................................................................................................... 63

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Rev 1.6‒January 28, 2016

PAC5250 Datasheet(PDF) 3 Page - Active-Semi, Inc

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