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CH591F on a board, in 3D

CH591F

WCH (Nanjing Qinheng Microelectronics)

Extended
DatasheetJLCPCBLCSCwch/CH591F
Category
Microcontrollers (MCU, MPU, SOC)
Package
QFN-28-EP(4x4)
Pins
29

Overview

The CH591F is a microcontroller made by WCH (Nanjing Qinheng Microelectronics) in a QFN-28-EP(4x4) package with 29 pins.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:CH591F, from EasyEDA) and its footprint (EasyEDA_Cloud:VQFN-28_L4.0-W4.0-P0.40-BL-EP2.6, from EasyEDA), ready for a KiCad board. 410 are in stock at JLCPCB (part C42400560).

Symbol

PA11/X32KO/TMR21PA10/X32KI/TMR12VDCID3VSW4VIO33/VDD335PA8/RXD16PA9/TMR0/TXD17PB15/TCK/MISO_/DTR8PB14/TIO/MOSI_/PWM10/DSR9PB13/SCK0_/TXD1_/DCD_10PB12/SCS_/RXD1_/RI_11PB11/UD+/TMR2_12PB10/UD-/TMR1_13PB7/TXD0/PWM914PB4/RXD0/PWM715PB23/RST/TMR0_/PWM1116PB22/TMR317X32MO18X32MI19VINTA20ANT21VDCIA22PA4/AIN023PA5/AIN124PA15/MISO/RXD0_/AIN525PA14/MOSI/TXD0_/AIN426PA13/SCK0/PWM5/AIN327PA12/SCS/PWM4/AIN228GND29
EasyEDA_Cloud:CH591FFrom EasyEDA

Footprint

29
EasyEDA_Cloud:VQFN-28_L4.0-W4.0-P0.40-BL-EP2.6From EasyEDA

Parameters

12
ADC (Bit)
12bit
CPU Core
RISC-V4C
CPU Maximum Speed
32kHz
Core Size
32 Bit
Features
Power-on reset (POR)
Number of I/O
20
Operating Temperature
-40℃~+85℃
Oscillator Type
Built-in
Program Memory Type
FLASH
Program Storage Size
248KB
RAM Size
26KB
Voltage - Supply
3.3V

Order codes

1

Pinout

29
The pins of the CH591F
PinNameType
1PA11/X32KO/TMR2Unspecified
2PA10/X32KI/TMR1Unspecified
3VDCIDUnspecified
4VSWUnspecified
5VIO33/VDD33Unspecified
6PA8/RXD1Unspecified
7PA9/TMR0/TXD1Unspecified
8PB15/TCK/MISO_/DTRUnspecified
9PB14/TIO/MOSI_/PWM10/DSRUnspecified
10PB13/SCK0_/TXD1_/DCD_Unspecified
11PB12/SCS_/RXD1_/RI_Unspecified
12PB11/UD+/TMR2_Unspecified
13PB10/UD-/TMR1_Unspecified
14PB7/TXD0/PWM9Unspecified
15PB4/RXD0/PWM7Unspecified
16PB23/RST/TMR0_/PWM11Unspecified
17PB22/TMR3Unspecified
18X32MOUnspecified
19X32MIUnspecified
20VINTAUnspecified
21ANTUnspecified
22VDCIAUnspecified
23PA4/AIN0Unspecified
24PA5/AIN1Unspecified
25PA15/MISO/RXD0_/AIN5Unspecified
26PA14/MOSI/TXD0_/AIN4Unspecified
27PA13/SCK0/PWM5/AIN3Unspecified
28PA12/SCS/PWM4/AIN2Unspecified
29GNDUnspecified

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/wch/CH591F" title="CH591F in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/wch/CH591F.jpg" alt="CH591F" width="1200" height="900">
A picture that opens the part, for a README
[![CH591F](https://pcbkit.io/embed/parts/wch/CH591F.jpg?size=s)](https://pcbkit.io/parts/wch/CH591F)

Questions

Is there a KiCad symbol and footprint for the CH591F?

Yes. The symbol is EasyEDA_Cloud:CH591F and the footprint EasyEDA_Cloud:VQFN-28_L4.0-W4.0-P0.40-BL-EP2.6, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the CH591F?

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

Where is the CH591F datasheet?

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

Where can I order the CH591F?

JLCPCB lists it as part C42400560, with 410 in stock; the sellers' links on this page open their listings.

What can replace the CH591F?

Parts like it in the library: the GD32F150G8U6TR by GigaDevice Semicon Beijing, the N32G430G8Q7 by Nations Technologies Inc, the PIC18F27Q43-I/STX by Microchip Technology and the PIC18F26Q43-I/STX by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8