CH9142
WCH (Nanjing Qinheng Microelectronics)Extended
-20dBm -40℃~+85℃ 1Mbps 2.3V~3.6V Bluetooth UART transceiver QFN-28(4x4) RF Transceiver ICs ROHS
- Part id
- wch/CH9142
- Category
- RF Transceiver ICs
- Package
- QFN-28(4x4)
- Pins
- 29
- In stock
- 387 at JLCPCB (C39831289)
Overview
The CH9142 is a RF Transceiver IC made by WCH (Nanjing Qinheng Microelectronics) in a QFN-28(4x4) package with 29 pins. -20dBm -40℃~+85℃ 1Mbps 2.3V~3.6V Bluetooth UART transceiver QFN-28(4x4) RF Transceiver ICs ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:CH9142, from EasyEDA) and its footprint (EasyEDA_Cloud:QFN-28_L4.0-W4.0-P0.40-BL-EP2.7_CH9142, from EasyEDA), ready for a KiCad board. 387 are in stock at JLCPCB (part C39831289).
Symbol
Footprint
Pinout
29| Pin | Name | Type |
|---|---|---|
| 0 | GND | Unspecified |
| 1 | X32KO | Unspecified |
| 2 | X32KI | Unspecified |
| 3 | VDD_D | Unspecified |
| 4 | VSW | Unspecified |
| 5 | VCC | Unspecified |
| 6 | AT0 | Unspecified |
| 7 | NC | Unspecified |
| 8 | RTS1#/TNOW1 | Unspecified |
| 9 | CTS1 | Unspecified |
| 10 | TXD1 | Unspecified |
| 11 | RXD1 | Unspecified |
| 12 | RTS0/TNOW0 | Unspecified |
| 13 | CTS0# | Unspecified |
| 14 | TXD0 | Unspecified |
| 15 | RXD0 | Unspecified |
| 16 | RST# | Unspecified |
| 17 | NC | Unspecified |
| 18 | X32MO | Unspecified |
| 19 | X32MI | Unspecified |
| 20 | VINTA | Unspecified |
| 21 | ANT | Unspecified |
| 22 | VDD_A | Unspecified |
| 23 | LED0/RELOAD | Unspecified |
| 24 | SLEEP | Unspecified |
| 25 | LED1 | Unspecified |
| 26 | AT1 | Unspecified |
| 27 | BLESTA0 | Unspecified |
| 28 | BLEDTA1 | Unspecified |
Questions
Is there a KiCad symbol and footprint for the CH9142?
Yes. The symbol is EasyEDA_Cloud:CH9142 and the footprint EasyEDA_Cloud:QFN-28_L4.0-W4.0-P0.40-BL-EP2.7_CH9142, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the CH9142?
QFN-28(4x4), with 29 pins. Its footprint is drawn on this page.
Where is the CH9142 datasheet?
WCH (Nanjing Qinheng Microelectronics) publishes it: the Datasheet link on this page opens it.
Where can I order the CH9142?
JLCPCB lists it as part C39831289, with 387 in stock; the sellers' links on this page open their listings.