6 layers83.5 × 56 mm
CH340T
WCH (Nanjing Qinheng Microelectronics)Extended
200uA 20mA 2Mbps 3.3V、5V Transceiver USB 2.0 SSOP-20-209mil USB Converters ROHS
- Part id
- wch/CH340T
- Category
- USB Converters
- Package
- SSOP-20-209mil
- Pins
- 20
- In stock
- 0 at JLCPCB (C8689)
- Used on
- 6 open-source boards
Overview
The CH340T is a USB Converter made by WCH (Nanjing Qinheng Microelectronics) in a SSOP-20-209mil package with 20 pins. 200uA 20mA 2Mbps 3.3V、5V Transceiver USB 2.0 SSOP-20-209mil USB Converters ROHS.
PCBKit's library has its KiCad symbol (Interface_USB:CH340T, from KiCad's library) and its footprint (Package_SO:SSOP-20_5.3x7.2mm_P0.65mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C8689). 6 open-source boards in 6 repositories on GitHub use it.
Symbol
Footprint
From the datasheet
14- Supply, least
- 4 V · VCC, 5 V operation, recommended min · p. 5
- Supply, most
- 5.3 V · VCC, 5 V operation, recommended max · p. 5
- Supply, least
- 2.9 V · VCC, V3 connected to VCC, 3.3 V operation, recommended min · p. 5
- Supply, most
- 3.6 V · VCC, V3 connected to VCC, 3.3 V operation, recommended max · p. 5
- Supply, absolute maximum
- 6 V · VCC, absolute max · p. 5
- Works from
- -40 °C · operating ambient, min · p. 5
- Works up to
- 85 °C · operating ambient, max · p. 5
- Takes working
- 7 mA · operating total supply current, VCC = 5 V, TA = 25 °C, typical · p. 5
- Takes at most
- 20 mA · operating total supply current, VCC = 5 V, TA = 25 °C, max · p. 5
- Takes asleep
- 90 µA · USB suspend total supply current, VCC = 5 V, TA = 25 °C, typical · p. 5
- Takes working
- 4 mA · operating total supply current, VCC = V3 = 3.3 V, TA = 25 °C, typical · p. 5
- Takes at most
- 12 mA · operating total supply current, VCC = V3 = 3.3 V, TA = 25 °C, max · p. 5
- Takes asleep
- 80 µA · USB suspend total supply current, VCC = V3 = 3.3 V, TA = 25 °C, typical · p. 5
- Data rate, most
- 2 Mbit/s · UART communication rate, max · p. 1
Open-source boards using it
6- 2 layers46 × 26 mm
- 4 layers85 × 50 mm
OpenHap
kenyattaejones32-boop/AQM
Open-source hardware design for OpenHAP, an ESP32-based air quality monitor with CO sensing, thermistor temperature input, USB-C charging, and cellular data upload.
269 parts - 2 layers
- 2 layers50.8 × 45.7 mm
- 2 layers137.2 × 83.8 mm
PCBa KRAKE
PubInv/krake
The Krake™ is a Wi-Fi–enabled server using an MQTT broker, which means it can be controlled remotely by other devices ("clients") via the internet.
195 parts9AGPL-3.0
Parts like it
8
CH376T
SSOP-20-208mil-40℃~+85℃ 12Mbps 3.3V、5V USB 2.0 USB to UART、USB to SPI SSOP-20-208mil USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB ConvertersCH341T
SSOP-20-208mil-20℃~+70℃ 2Mbps 3.3V、5V USB 2.0 USB to UART SSOP-20-208mil USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB ConvertersMCP2200-I/SS
SSOP-20-208mil-40℃~+85℃ 13mA 1mbps 3V~5.5V 9uA USB 2.0 USB to UART SSOP-20-208mil USB Converters ROHSMicrochip TechnologyUSB ConvertersCH345T
SSOP-20100uA 2 2.9V~3.6V、4V~5.3V 7mA USB 2.0 USB to MIDI SSOP-20 USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB ConvertersMCP2210-I/SS
SSOP-20-208mil-40℃~+85℃ 13mA 3.3V~5.5V 9uA USB 2.0 USB to SPI SSOP-20-208mil USB Converters ROHSMicrochip TechnologyUSB ConvertersCH372C
SSOP-20-20℃~+70℃ 250uA 25mA 3.1V~3.6V、4.2V~5.4V USB 2.0 SSOP-20 USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB ConvertersCH374T
SSOP-20-208mil-40℃~+85℃ 12Mbps 3 3.3V、5V USB 2.0 USB to SPI SSOP-20-208mil USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB ConvertersCH331A
SSOP-20-208mil3.3V、5V USB 2.0 SSOP-20-208mil USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB Converters
Questions
Is there a KiCad symbol and footprint for the CH340T?
Yes. The symbol is Interface_USB:CH340T and the footprint Package_SO:SSOP-20_5.3x7.2mm_P0.65mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the CH340T?
SSOP-20-209mil, with 20 pins. Its footprint is drawn on this page.
Where is the CH340T datasheet?
WCH (Nanjing Qinheng Microelectronics) publishes it: the Datasheet link on this page opens it.
Where can I order the CH340T?
JLCPCB lists it as part C8689, with 0 in stock; the sellers' links on this page open their listings.
What can replace the CH340T?
Parts like it in the library: the CH376T by WCH (Nanjing Qinheng Microelectronics), the CH341T by WCH (Nanjing Qinheng Microelectronics), the MCP2200-I/SS by Microchip Technology and the CH345T 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 CH340T?
6 boards in 6 repositories on GitHub; the most starred are listed on this page, with their KiCad files.