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CH549F

WCH (Nanjing Qinheng Microelectronics)Extended

12bit 3.3V~5V 48MHz 51 Family 64KB FLASH QFN-28-EP(4x4) Microcontrollers (MCU/MPU/SOC) ROHS

DatasheetJLCPCBLCSC
Part id
wch/CH549F
Category
Microcontrollers (MCU, MPU, SOC)
Package
QFN-28-EP(4x4)
Pins
29
In stock
3 at JLCPCB (C367229)
Used on
2 open-source boards

Overview

The CH549F is a microcontroller made by WCH (Nanjing Qinheng Microelectronics) in a QFN-28-EP(4x4) package with 29 pins. 12bit 3.3V~5V 48MHz 51 Family 64KB FLASH QFN-28-EP(4x4) Microcontrollers (MCU/MPU/SOC) ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:CH549F, from EasyEDA) and its footprint (EasyEDA_Cloud:QFN-28_L4.0-W4.0-P0.40-BL-EP, from EasyEDA), ready for a KiCad board. 3 are in stock at JLCPCB (part C367229). 2 open-source boards in 1 repository on GitHub use it.

Symbol

P1.6/MISO/RXD1_/VBUS/AIN61P1.7/SCK/TXD1_/AIN72P5.7/RST3P3.0/RXD4P3.1/TXD5P3.2/INT06P3.3/INT17P3.4/T08P3.5/T19P4.6/XI10XO11P2.2/PWM3/INT0_12P2.4/PWM1/T2_/CAP1_13P2.6/PWM6/RXD114P2.7/PWM7/TXD115P5.5/HVOD16P5.1/DP/UDP17P5.0/DM/UDM18P0.7/TXD3/AIN1519P0.6/RXD3/AIN1420P0.5/TXD2/AIN1321P0.4/RXD2/AIN1222VDD23V3324P1.0/T2/CAP1/AIN025P1.1/T2EX/CAP2/AIN126P1.4/SCS/UCC1/AIN427P1.5/MOSI/PWM0_/UCC2/AIN528GND29
EasyEDA_Cloud:CH549FFrom EasyEDA

Footprint

29
EasyEDA_Cloud:QFN-28_L4.0-W4.0-P0.40-BL-EPFrom EasyEDA

Pinout

29
The pins of the CH549F
PinNameType
1P1.6/MISO/RXD1_/VBUS/AIN6Unspecified
2P1.7/SCK/TXD1_/AIN7Unspecified
3P5.7/RSTUnspecified
4P3.0/RXDUnspecified
5P3.1/TXDUnspecified
6P3.2/INT0Unspecified
7P3.3/INT1Unspecified
8P3.4/T0Unspecified
9P3.5/T1Unspecified
10P4.6/XIUnspecified
11XOUnspecified
12P2.2/PWM3/INT0_Unspecified
13P2.4/PWM1/T2_/CAP1_Unspecified
14P2.6/PWM6/RXD1Unspecified
15P2.7/PWM7/TXD1Unspecified
16P5.5/HVODUnspecified
17P5.1/DP/UDPUnspecified
18P5.0/DM/UDMUnspecified
19P0.7/TXD3/AIN15Unspecified
20P0.6/RXD3/AIN14Unspecified
21P0.5/TXD2/AIN13Unspecified
22P0.4/RXD2/AIN12Unspecified
23VDDUnspecified
24V33Unspecified
25P1.0/T2/CAP1/AIN0Unspecified
26P1.1/T2EX/CAP2/AIN1Unspecified
27P1.4/SCS/UCC1/AIN4Unspecified
28P1.5/MOSI/PWM0_/UCC2/AIN5Unspecified
29GNDUnspecified

Open-source boards using it

2
  • 2 layers49.6 × 37.2 mmLocateMagnet, the printed circuit board in 3D

    LocateMagnet

    Aiano/LocateMagnet

    磁定位系统

    94 parts64
  • 2 layers49.6 × 37.2 mmLocateMagnet, the printed circuit board in 3D

    LocateMagnet

    Aiano/LocateMagnet

    磁定位系统

    89 parts64

Parts like it

8

Questions

Is there a KiCad symbol and footprint for the CH549F?

Yes. The symbol is EasyEDA_Cloud:CH549F and the footprint EasyEDA_Cloud:QFN-28_L4.0-W4.0-P0.40-BL-EP, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the CH549F?

QFN-28-EP(4x4), with 29 pins. Its footprint is drawn on this page.

Where is the CH549F datasheet?

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

Where can I order the CH549F?

JLCPCB lists it as part C367229, with 3 in stock; the sellers' links on this page open their listings.

What can replace the CH549F?

Parts like it in the library: the GD32F350G8U6TR by GigaDevice Semicon Beijing, the GD32F130G8U6TR by GigaDevice, the GD32F130G6U6TR by GigaDevice Semicon Beijing and the HK32F403GBU7 by HK. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the CH549F?

2 boards in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.