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CH347F, in 3D

CH347F

WCH (Nanjing Qinheng Microelectronics)

2 260uA 38mA 3V~3.6V 480Mbps USB 2.0 USB to UART、USB to SPI、USB to I2C、USB to JTAG、USB to SWD QFN-28(4X4) USB Converters ROHS

Extended
DatasheetJLCPCBLCSCwch/CH347F
Category
USB Converters
Package
QFN-28(4X4)
Pins
29

Overview

The CH347F is a USB Converter made by WCH (Nanjing Qinheng Microelectronics) in a QFN-28(4X4) package with 29 pins. 2 260uA 38mA 3V~3.6V 480Mbps USB 2.0 USB to UART、USB to SPI、USB to I2C、USB to JTAG、USB to SWD QFN-28(4X4) USB Converters ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:CH347F, from EasyEDA) and its footprint (EasyEDA_Cloud:QFN-28_L4.0-W4.0-P0.40-BL-EP2.7, from EasyEDA), ready for a KiCad board. 10,180 are in stock at JLCPCB (part C18221627). 6 open-source boards in 6 repositories on GitHub use it.

Symbol

XI1XO2RST#3TXD14RXD15VIO6DTR1/TNOW1/SCS17ACT/SRST8TRST/GPIO39DTR0/TNOW0/GPIO210CTS1/SCL11RTS1/SDA12SCS013SCK14MISO15MOSI16CTS0/GPIO017RTS0/GPIO118TXD019GND20VCC21RXD022TCK/SWDCLK/GPIO423TDO/GPIO524TDI/GPIO625TMS/SWDIO/GPIO726UD-27UD+28PAD29
EasyEDA_Cloud:CH347FFrom EasyEDA

Footprint

29
EasyEDA_Cloud:QFN-28_L4.0-W4.0-P0.40-BL-EP2.7From EasyEDA

From the datasheet

14
Supply, least
3 V · VCC, recommended operating, min · p. 10
Supply, most
3.6 V · VCC, recommended operating, max · p. 10
Supply, least
1.7 V · VIO, batch number fifth digit <4, recommended operating, min · p. 10
Supply, most
3.6 V · VIO, batch number fifth digit <4, recommended operating, max · p. 10
Supply, least
1.1 V · VIO, batch number fifth digit ≥4, recommended operating, min · p. 10
Supply, most
3.6 V · VIO, batch number fifth digit ≥4, recommended operating, max · p. 10
Supply, absolute maximum
4 V · VCC, absolute maximum · p. 10
Supply, absolute maximum
4 V · VIO, absolute maximum · p. 10
Works from
-40 °C · operating ambient temperature, min · p. 10
Works up to
85 °C · operating ambient temperature, max · p. 10
Takes working
38 mA · normal operation, VCC=3.3V, TA=25°C, typical · p. 10
Takes at most
50 mA · normal operation, VCC=3.3V, TA=25°C, max · p. 10
Takes asleep
260 µA · USB suspend, VCC=3.3V, TA=25°C, typical · p. 10
Data rate, most
480 Mbit/s · USB high-speed device interface, max · p. 1

Parameters

12
Applications Function
USB to UART
Current - Supply
38mA
Current - Supply(Max)
50mA
Data Rate
480Mbps
Features
FIFO buffer；Programmable baud rate；Hardware flow control support；Power-on reset
Number of Channels
2
Operating Temperature
-40℃~+85℃
Quiescent Supply Current
260uA
Standby Current
260uA
USB Protocol
USB 2.0
Voltage - Supply
1.1V~3.6V
Voltage - Supply(Absolute Max)
4V

Order codes

1

Pinout

29
The pins of the CH347F
PinNameType
1XIUnspecified
2XOUnspecified
3RST#Unspecified
4TXD1Unspecified
5RXD1Unspecified
6VIOUnspecified
7DTR1/TNOW1/SCS1Unspecified
8ACT/SRSTUnspecified
9TRST/GPIO3Unspecified
10DTR0/TNOW0/GPIO2Unspecified
11CTS1/SCLUnspecified
12RTS1/SDAUnspecified
13SCS0Unspecified
14SCKUnspecified
15MISOUnspecified
16MOSIUnspecified
17CTS0/GPIO0Unspecified
18RTS0/GPIO1Unspecified
19TXD0Unspecified
20GNDUnspecified
21VCCUnspecified
22RXD0Unspecified
23TCK/SWDCLK/GPIO4Unspecified
24TDO/GPIO5Unspecified
25TDI/GPIO6Unspecified
26TMS/SWDIO/GPIO7Unspecified
27UD-Unspecified
28UD+Unspecified
29PADUnspecified

Open-source boards using it

All 6
  • 4 layers431.5 × 125.5 mmClavier, the printed circuit board in 3D

    Clavier

    lsartory/Clavier

    An FPGA-based mechanical keyboard with an integrated USB hub and communication interfaces

    344 parts212
  • 4 layers33 × 11 mmWch probe, the printed circuit board in 3D

    Wch probe

    korken89/wch-probe

    CH347F-based JTAG & SWD debug probe

    36 parts1CERN-OHL-P-2.0
  • 2 layers80.1 × 70 mmUSB TO UART SPI I2C, the printed circuit board in 3D

    USB TO UART SPI I2C

    LuizFernandoOliveira/Conversor-USB-UART-SPI-I2C-JTAG

    This work is licensed under a [Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License][cc-by-nc-nd].

    76 parts
  • 4 layers66.2 × 30.9 mmUni dap, the printed circuit board in 3D

    Uni dap

    Reutronix/uni-dap-v3

    UniDAP hardware repo

    149 parts
  • 2 layers27.2 × 56.2 mmRB-347, the printed circuit board in 3D

    RB-347

    reza-bakhshi/RB-347

    RB-347 is a small USB interface and debugging module built around the WCH CH347F. It provides several commonly used digital interfaces from a single USB-C connection, making it useful for embedded development, board…

    36 parts

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Questions

Is there a KiCad symbol and footprint for the CH347F?

Yes. The symbol is EasyEDA_Cloud:CH347F and the footprint EasyEDA_Cloud:QFN-28_L4.0-W4.0-P0.40-BL-EP2.7, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the CH347F?

QFN-28(4X4), with 29 pins. Its footprint is drawn on this page.

Where is the CH347F datasheet?

WCH (Nanjing Qinheng Microelectronics) publishes it: the Datasheet link on this page opens it.

Where can I order the CH347F?

JLCPCB lists it as part C18221627, with 10,180 in stock; the sellers' links on this page open their listings.

What can replace the CH347F?

Parts like it in the library: the CH379Y 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 CH347F?

6 boards in 6 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

1