2 layers23.5 × 18.4 mm
Overview
The CH341F is a USB Converter made by WCH (Nanjing Qinheng Microelectronics) in a QFN-28-EP(4x4) package with 29 pins. 20mA 250uA 2Mbps 5V USB 2.0 USB to Parallel、USB to Synchronous Serial Interface QFN-28-EP(4x4) USB Converters ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:CH341F, from EasyEDA) and its footprint (EasyEDA_Cloud:QFN-28_L4.0-W4.0-P0.40-BL-EP, from EasyEDA), ready for a KiCad board. 58 are in stock at JLCPCB (part C412870). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
7- Applications Function
- USB to Parallel
- Current - Supply
- 20mA
- Data Rate
- 2Mbps
- Features
- Programmable baud rate；Built-in clock generator；Hardware flow control support；Power-on reset
- Quiescent Supply Current
- 250uA
- USB Protocol
- USB 2.0
- Voltage - Supply
- 5V
Order codes
1- CH341FLCSC C412870
Pinout
29| Pin | Name | Type |
|---|---|---|
| 1 | ACT# | Unspecified |
| 2 | RSTI | Unspecified |
| 3 | IN7 | Unspecified |
| 4 | ROV# | Unspecified |
| 5 | TXD | Unspecified |
| 6 | RXD | Unspecified |
| 7 | INT# | Unspecified |
| 8 | IN3 | Unspecified |
| 9 | V3 | Unspecified |
| 10 | UD+ | Unspecified |
| 11 | UD- | Unspecified |
| 12 | GND | Unspecified |
| 13 | XI | Unspecified |
| 14 | XO | Unspecified |
| 15 | CTS# | Unspecified |
| 16 | DSR# | Unspecified |
| 17 | RI# | Unspecified |
| 18 | DCD# | Unspecified |
| 19 | OUT# | Unspecified |
| 20 | DTR# | Unspecified |
| 21 | RTS# | Unspecified |
| 22 | SLP# | Unspecified |
| 23 | SDA | Unspecified |
| 24 | SCL | Unspecified |
| 25 | RDY# | Unspecified |
| 26 | TNOW | Unspecified |
| 27 | TEN# | Unspecified |
| 28 | VCC | Unspecified |
| 29 | EP | Unspecified |
Open-source boards using it
All 1Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/wch/CH341F" title="CH341F 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/CH341F.jpg" alt="CH341F" width="1200" height="900">[](https://pcbkit.io/parts/wch/CH341F)Questions
Is there a KiCad symbol and footprint for the CH341F?
Yes. The symbol is EasyEDA_Cloud:CH341F and the footprint EasyEDA_Cloud:QFN-28_L4.0-W4.0-P0.40-BL-EP, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the CH341F?
QFN-28-EP(4x4), with 29 pins. Its footprint is drawn on this page.
Where is the CH341F datasheet?
WCH (Nanjing Qinheng Microelectronics) publishes it: the Datasheet link on this page opens it.
Where can I order the CH341F?
JLCPCB lists it as part C412870, with 58 in stock; the sellers' links on this page open their listings.
What can replace the CH341F?
Parts like it in the library: the CH377F by WCH (Nanjing Qinheng Microelectronics). Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the CH341F?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
