Overview
The CH9434D is an UART made by WCH (Nanjing Qinheng Microelectronics) in a QFN-20(3x3) package with 21 pins. -40℃~+85℃ 1.8V~3.6V 4 6Mbps 8.1mA QFN-20(3x3) UART ROHS.
PCBKit's library has its footprint (EasyEDA_Cloud:QFN-20_L3.0-W3.0-P0.40-BL-EP1.9, from EasyEDA), ready for a KiCad board. 630 are in stock at JLCPCB (part C51912925).
Symbol
The library has no symbol for this part yet.
Footprint
Questions
Is there a KiCad symbol and footprint for the CH9434D?
Yes. the footprint EasyEDA_Cloud:QFN-20_L3.0-W3.0-P0.40-BL-EP1.9, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the CH9434D?
QFN-20(3x3), with 21 pins. Its footprint is drawn on this page.
Where is the CH9434D datasheet?
WCH (Nanjing Qinheng Microelectronics) publishes it: the Datasheet link on this page opens it.
Where can I order the CH9434D?
JLCPCB lists it as part C51912925, with 630 in stock; the sellers' links on this page open their listings.