Labels Milestones
Back48 pin, exposed pad, 4x4mm body, pitch 0.5mm UFBGA-64, 8x8 raster, 3.347x3.585mm package, pitch 0.4mm; see section 7.7 of http://www.st.com/resource/en/datasheet/DM00330506.pdf WLCSP-100, 10x10 raster, 8x8mm package, pitch 0.4mm; see section 7.4 of http://www.st.com/resource/en/datasheet/stm32l476me.pdf WLCSP-81, 9x9.
- Addressable RGB LED NeoPixel addressable PLCC-4 5050.
- SPDT push button (https://www.alps.com/prod/info/E/PDF/Tact/SurfaceMount/SKRT/SKRT.pdf push.