
LICHEE JACK USB DEBUGGER
KaliAssistant/Lichee-Jack-pcb
Open hardware extension board for Lichee-Jack with battery, Ethernet, and LED integration.

The USB2422/MJ is a USB Converter made by Microchip Technology in a QFN-24-EP(4x4) package with 25 pins. 2 3.3V Hub USB 2.0 QFN-24-EP(4x4) USB HUB Controllers ROHS.
PCBKit's library has its KiCad symbol (Analog & Interface:USB2422, from CERN's library) and its footprint (ICs And Semiconductors SMD:QFN50P400X400X100-25N-S250, from CERN's library), ready for a KiCad board. 84 are in stock at JLCPCB (part C633330). 12 open-source boards in 12 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | VDD33 | Power in |
| 2 | USBDM_DN1 | Input/output |
| 3 | USBDP_DN1 | Input/output |
| 4 | USBDM_DN2 | Input/output |
| 5 | USBDP_DN2 | Input/output |
| 6 | NC | Passive |
| 7 | PRTPWR1 | Passive |
| 8 | OCS1_N | Input |
| 9 | VDD33 | Power in |
| 10 | CRFILT | Passive |
| 11 | PRTPWR2 | Passive |
| 12 | OCS2_N | Input |
| 13 | SMBDATA | Input/output |
| 14 | SMBCLK | Input |
| 15 | RESET_N | Input |
| 16 | VBUS_DET | Input |
| 17 | SUSP_IND | Output |
| 18 | VDD33 | Power in |
| 19 | USBDM_UP | Input/output |
| 20 | USBDP_UP | Input/output |
| 21 | XTALOUT | Passive |
| 22 | XTALIN | Passive |
| 23 | PLLFILT | Passive |
| 24 | RBIAS | Passive |
| 25 | EP | Power in |

KaliAssistant/Lichee-Jack-pcb
Open hardware extension board for Lichee-Jack with battery, Ethernet, and LED integration.

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<iframe src="https://pcbkit.io/embed/parts/microchip/USB2422/MJ" title="USB2422/MJ in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/microchip/USB2422/MJ.jpg" alt="USB2422/MJ" width="1200" height="900">[](https://pcbkit.io/parts/microchip/USB2422/MJ)Yes. The symbol is Analog & Interface:USB2422 and the footprint ICs And Semiconductors SMD:QFN50P400X400X100-25N-S250, both drawn on this page. PCBKit places them on a board for you when you design with it.
QFN-24-EP(4x4), with 25 pins. Its footprint is drawn on this page.
Microchip Technology publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C633330, with 84 in stock; the sellers' links on this page open their listings.
12 boards in 12 repositories on GitHub; the most starred are listed on this page, with their KiCad files.