Overview
The CH374U is a USB Converter made by WCH (Nanjing Qinheng Microelectronics) in a SSOP-24-208mil package with 24 pins. -40℃~+85℃ 12Mbps 3 3.3V、5V USB 2.0 USB to SPI SSOP-24-208mil USB Converters ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:CH374U, from EasyEDA) and its footprint (Package_SO:SSOP-24_5.3x8.2mm_P0.65mm, from KiCad's library), ready for a KiCad board. 31 are in stock at JLCPCB (part C111673).
Symbol
Footprint
Parameters
9- Applications Function
- USB to SPI
- Current - Supply
- 25mA
- Data Rate
- 12Mbps
- Features
- Power-on reset；Wake-up function
- Number of Channels
- 3
- Operating Temperature
- -40℃~+85℃
- Quiescent Supply Current
- 70uA
- USB Protocol
- USB 2.0
- Voltage - Supply
- 5V
Order codes
1- CH374ULCSC C111673
Pinout
24| Pin | Name | Type |
|---|---|---|
| 1 | WR# | Unspecified |
| 2 | RD# | Unspecified |
| 3 | UD2+ | Unspecified |
| 4 | UD2- | Unspecified |
| 5 | A0 | Unspecified |
| 6 | V3 | Unspecified |
| 7 | UD+ | Unspecified |
| 8 | UD- | Unspecified |
| 9 | UD1+ | Unspecified |
| 10 | UD1- | Unspecified |
| 11 | XI | Unspecified |
| 12 | XO | Unspecified |
| 13 | D0 | Unspecified |
| 14 | D1 | Unspecified |
| 15 | D2 | Unspecified |
| 16 | SCS/D3 | Unspecified |
| 17 | D4 | Unspecified |
| 18 | SCK/D5 | Unspecified |
| 19 | SDI/D6 | Unspecified |
| 20 | SDO/D7 | Unspecified |
| 21 | GND | Unspecified |
| 22 | CS# | Unspecified |
| 23 | VCC | Unspecified |
| 24 | INT# | Unspecified |
Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/wch/CH374U" title="CH374U 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/CH374U.jpg" alt="CH374U" width="1200" height="900">[](https://pcbkit.io/parts/wch/CH374U)Questions
Is there a KiCad symbol and footprint for the CH374U?
Yes. The symbol is EasyEDA_Cloud:CH374U and the footprint Package_SO:SSOP-24_5.3x8.2mm_P0.65mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the CH374U?
SSOP-24-208mil, with 24 pins. Its footprint is drawn on this page.
Where is the CH374U datasheet?
WCH (Nanjing Qinheng Microelectronics) publishes it: the Datasheet link on this page opens it.
Where can I order the CH374U?
JLCPCB lists it as part C111673, with 31 in stock; the sellers' links on this page open their listings.
What can replace the CH374U?
Parts like it in the library: the CY7C63743C-QXC by Infineon Technologies, the CY7C63823-QXC by Infineon Technologies and the GL823_SSOP24 by Genesys Logic. Check their datasheets: a part that fits the footprint may still differ in its ratings.
