CH344L
WCH (Nanjing Qinheng Microelectronics)Extended
-40℃~+85℃ 3.3V、5V 4 USB 2.0 USB to UART LQFP-48(7x7) USB Converters ROHS
- Part id
- wch/CH344L
- Category
- USB Converters
- Package
- LQFP-48(7x7)
- Pins
- 48
- In stock
- 925 at JLCPCB (C2887250)
Overview
The CH344L is a USB Converter made by WCH (Nanjing Qinheng Microelectronics) in a LQFP-48(7x7) package with 48 pins. -40℃~+85℃ 3.3V、5V 4 USB 2.0 USB to UART LQFP-48(7x7) USB Converters ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:CH344L, from EasyEDA) and its footprint (Package_QFP:LQFP-48_7x7mm_P0.5mm, from KiCad's library), ready for a KiCad board. 925 are in stock at JLCPCB (part C2887250).
Symbol
Footprint
Pinout
48| Pin | Name | Type |
|---|---|---|
| 1 | NC | Unspecified |
| 2 | CFG2 | Unspecified |
| 3 | NC | Unspecified |
| 4 | NC | Unspecified |
| 5 | XI | Unspecified |
| 6 | XO | Unspecified |
| 7 | RESET | Unspecified |
| 8 | GND | Unspecified |
| 9 | VCC | Unspecified |
| 10 | CTS1/GPIO2 | Unspecified |
| 11 | RTS1/GPIO3 | Unspecified |
| 12 | TXD1 | Unspecified |
| 13 | RXD1 | Unspecified |
| 14 | ACT | Unspecified |
| 15 | TX_S | Unspecified |
| 16 | RX_S | Unspecified |
| 17 | NC | Unspecified |
| 18 | TNOW1/GPIO9 | Unspecified |
| 19 | TNOW2/GPIO10 | Unspecified |
| 20 | GND | Unspecified |
| 21 | TXD2 | Unspecified |
| 22 | RXD2 | Unspecified |
| 23 | GND | Unspecified |
| 24 | VCC | Unspecified |
| 25 | NC | Unspecified |
| 26 | CTS2/GPIO4 | Unspecified |
| 27 | RTS2/GPIO5 | Unspecified |
| 28 | NC | Unspecified |
| 29 | TXD3 | Unspecified |
| 30 | TXD0 | Unspecified |
| 31 | RXD0 | Unspecified |
| 32 | UD- | Unspecified |
| 33 | UD+ | Unspecified |
| 34 | NC | Unspecified |
| 35 | GND | Unspecified |
| 36 | VCC | Unspecified |
| 37 | NC | Unspecified |
| 38 | CFG | Unspecified |
| 39 | TNOW0/GPIO8 | Unspecified |
| 40 | RTS0/GPIO1 | Unspecified |
| 41 | CTS0/GPIO0 | Unspecified |
| 42 | RXD3 | Unspecified |
| 43 | TNOW3/GPIO11 | Unspecified |
| 44 | TEST | Unspecified |
| 45 | RTS3/GPIO7 | Unspecified |
| 46 | CTS3/GPIO6 | Unspecified |
| 47 | GND | Unspecified |
| 48 | VCC | Unspecified |
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Questions
Is there a KiCad symbol and footprint for the CH344L?
Yes. The symbol is EasyEDA_Cloud:CH344L and the footprint Package_QFP:LQFP-48_7x7mm_P0.5mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the CH344L?
LQFP-48(7x7), with 48 pins. Its footprint is drawn on this page.
Where is the CH344L datasheet?
WCH (Nanjing Qinheng Microelectronics) publishes it: the Datasheet link on this page opens it.
Where can I order the CH344L?
JLCPCB lists it as part C2887250, with 925 in stock; the sellers' links on this page open their listings.
What can replace the CH344L?
Parts like it in the library: the XR21V1414IM48TR-F by MaxLinear, the FT232HL-REEL by FTDI, the FE2.1 by TERMINUS and the FE1.1 by TERMINUS. Check their datasheets: a part that fits the footprint may still differ in its ratings.