Data Sheet

K019-CW43-DW datasheet_V1.6_15042020.doc | Shawn Xiao

Contents

Contents ............................................................................................................................... 2

1. Introduction ..................................................................................................................... 8

1.1 About KEIIOT .................................................................................................................. 8

1.2 Product Overview .......................................................................................................... 8

2. Features........................................................................................................................... 9

2.1 WLAN .............................................................................................................................. 9

2.2 Bluetooth ........................................................................................................................ 9

2.4 Block Diagram .............................................................................................................. 10

3. Specification Table ........................................................................................................ 11

3.1

General Specification ............................................................................................... 11

3.2

Voltages (Absolute Maximum Ratings) ..................................................................... 11

3.3

Recommended Operating Rating ............................................................................. 13

3.4

2.4GHz RF Specification .......................................................................................... 14

3.5

5GHz RF Specification ............................................................................................. 15

3.6

Bluetooth Specification ............................................................................................. 10

4. Pin Assignments ........................................................................................................... 11

4.1

Pin Map .................................................................................................................... 11

4.2

Pin Table .................................................................................................................. 11

5. Mechanical and Layout Design ................................................................................... 13

6. Frequency References ................................................................................................. 14

6.1

External Clock Reference .............................................................................................. 14

6.2

SDIO v3.0 and SDIO v2.0 ............................................................................................... 15

7.1

Power-up Sequence Timing Diagram ....................................................................... 16

7.2

SDIO Default Mode Timing Diagram ........................................................................ 18

7.3 SDIO Bus Timing Specifications in SDR Modes ................................................. 19

7.4 SDIO High Speed Mode Timing Diagram ........................................................... 20

8. Recommended Reflow Profile ..................................................................................... 23

9. PCB Layout Solder Paste ............................................................................................. 24

10. Package Information ................................................................................................. 26

11. This product is RoHS compliance ............................................................................. 27

12. MSL Level / Storage Condition .................................................................................. 28