DF69 datasheet(3/106 Pages) PADAUK

3 / 106 page

DF69

DC Fan Controller

Table of Contents

Features ........................................................................................................................... 8

1-1. High Performance RISC CPU Array.......................................................................................8

1-2. System Functions ..................................................................................................................8

General Description and Block Diagram....................................................................... 9

DF69 Pin Assignment and Description ....................................................................... 10

Device Characteristics.................................................................................................. 12

4-1. AC/DC Device Characteristics .............................................................................................12

4-2. Absolute Maximum Ratings .................................................................................................15

4-3. Typical ILRC frequency vs. VDD and temperature...............................................................15

4-4. Typical IHRC frequency deviation vs. VDD and temperature ...............................................15

4-5. Typical Operating Current vs. VDD and CLK=IHRC/n..........................................................16

4-6. Typical Operating Current vs. VDD and CLK=ILRC/n ..........................................................16

4-7. Typical Operating Current vs. VDD @CLK=32KHz EOSC/n ................................................17

4-8. Typical Operating Current vs. VDD @CLK=1MHz EOSC/n .................................................17

4-9. Typical Operating Current vs. VDD @CLK=4MHz EOSC/n .................................................18

4-10. Typical IO pull high resistance ...........................................................................................18

4-11. Typical IO driving current (IOH) and sink current (IOL) ..........................................................19

4-12. Typical IO input high/low threshold voltage (VIH/VIL) ...........................................................19

4-13. Timing charts for boot up conditions ..................................................................................20

5. Functional Description ........................................................................................................ 21

5-1. Processing Units..................................................................................................................21

5-1-1. Program Counter .....................................................................................................24

5-1-2. Stack Pointer............................................................................................................24

5-2. Program Memory – OTP ......................................................................................................26

5-3. Program Structure ...............................................................................................................28

5-4. Boot Procedure....................................................................................................................29

5-5. Data Memory -- SRAM.........................................................................................................30

5-6. Arithmetic and Logic Unit .....................................................................................................31

5-7. Oscillator and clock..............................................................................................................31

5-7-1. Internal High RC oscillator and Internal Low RC oscillator........................................31

5-7-2. Chip calibration ........................................................................................................31

5-7-3 IHRC Frequency Calibration and System Clock ........................................................32

5-7-4. Crystal Oscillator......................................................................................................34

5-7-5. System Clock and LVR (Low Voltage Reset) level ...................................................36

5-8. 16-bit Timer (Timer16) .........................................................................................................37

5-9. 8-bit Timer (Timer2) .............................................................................................................39

Page 3 of 106

PDK-DS-DF69_V003 – Apr. 18, 2018

DF69 датащи(PDF) 3 Page - PADAUK Technology.