Labels Milestones
Back0.25mm pad, 3.6x3.6mm, 36 Ball, 6x6 Layout, 0.5mm Pitch, https://ww1.microchip.com/downloads/en/DeviceDoc/16B_WLCSP_CS_C04-06036c.pdf WLCSP-20, 4x5 raster, 1.934x2.434mm package, pitch 0.8mm; see section 6.6 of http://www.st.com/resource/en/datasheet/DM00273119.pdf X1-WLB0909, 0.89x0.89mm, 4 Ball, 2x2 Layout, 0.35mm Pitch, https://www.st.com/resource/en/datasheet/stm32h7a3ai.pdf ST WLCSP-156, ST die ID 494.