Data Sheet

Table of Contents
1. Overview 1 ................................................................................................................................
2. Pin Description 3 ......................................................................................................................
3. Functional Description 5 ..........................................................................................................
3.1. MCU! 5".........................................................................................................................................
3.2. Memory! 5"....................................................................................................................................
3.2.1. Internal SRAM and ROM! 5"...........................................................................................
3.2.2. SPI Flash! 5"....................................................................................................................
3.3. Crystal Oscillator! 6"......................................................................................................................
3.4. Interface Description! 6"................................................................................................................
4. Electrical Characteristics 8 ......................................................................................................
4.1. Electrical Characteristics! 8"..........................................................................................................
4.2. Wi-Fi Radio! 8"...............................................................................................................................
4.3. Power Consumption! 9".................................................................................................................
4.4. Reflow Profile! 10".........................................................................................................................
4.5. Electrostatic Discharge! 11"..........................................................................................................
5. Schematics 12 ..........................................................................................................................
6. Dimensions 14 ..........................................................................................................................
A. Appendix—Learning Resources 15 .........................................................................................
A.1. Must-Read Documents! 15"..........................................................................................................
A.2. Must-Have Resources! 16............................................................................................................