Overview
The CH641X is an uncategorised made by WCH (Nanjing Qinheng Microelectronics) in a QFN-20(3x3) package with 21 pins.
PCBKit's library has its footprint (EasyEDA_Cloud:QFN-20_L3.0-W3.0-P0.40-BL-EP1.7, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C42410392).
Symbol
The library has no symbol for this part yet.
Footprint
Parameters
12- ADC (Bit)
- 10bit
- CPU Core
- RISC-V
- CPU Maximum Speed
- 48MHz
- Core Size
- 32 Bit
- DAC (Bit)
- 6bit
- Number of I/O
- 17
- Operating Temperature
- -40℃~+85℃
- Oscillator Type
- Built-in
- Program Memory Type
- FLASH
- Program Storage Size
- 16KB
- RAM Size
- 2KB
- Voltage - Supply
- 4V~12.6V
Order codes
1- CH641XLCSC C42410392
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<iframe src="https://pcbkit.io/embed/parts/wch/CH641X" title="CH641X in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/wch/CH641X.jpg" alt="CH641X" width="1200" height="900">[](https://pcbkit.io/parts/wch/CH641X)Questions
Is there a KiCad symbol and footprint for the CH641X?
Yes. the footprint EasyEDA_Cloud:QFN-20_L3.0-W3.0-P0.40-BL-EP1.7, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the CH641X?
QFN-20(3x3), with 21 pins. Its footprint is drawn on this page.
Where is the CH641X datasheet?
WCH (Nanjing Qinheng Microelectronics) publishes it: the Datasheet link on this page opens it.
Where can I order the CH641X?
JLCPCB lists it as part C42410392, with 0 in stock; the sellers' links on this page open their listings.
What can replace the CH641X?
Parts like it in the library: the CH390D by WCH (Nanjing Qinheng Microelectronics). Check their datasheets: a part that fits the footprint may still differ in its ratings.
