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CH554P on a board, in 3D

CH554P

WCH (Nanjing Qinheng Microelectronics)

QFN-16-EP(3x3) Microcontrollers (MCU/MPU/SOC) ROHS

Extended
DatasheetJLCPCBLCSCwch/CH554P
Category
Microcontrollers (MCU, MPU, SOC)
Package
QFN-16-EP(3x3)
Pins
17

Overview

The CH554P is a microcontroller made by WCH (Nanjing Qinheng Microelectronics) in a QFN-16-EP(3x3) package with 17 pins. QFN-16-EP(3x3) Microcontrollers (MCU/MPU/SOC) ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:CH554P, from EasyEDA) and its footprint (EasyEDA_Cloud:QFN-16_L3.0-W3.0-P0.50-TL-EP1.7, from EasyEDA), ready for a KiCad board. 1,365 are in stock at JLCPCB (part C5180450). 1 open-source board in 1 repository on GitHub use it.

Symbol

V331P1.5/MOSI/PWM1/TIN3/AIN22P1.4/T2_/CAP1_/SCS/TIN2/AIN13P3.2/TXD1_/INT0/VBUS1/AIN34P1.6/MISO/RXD1/TIN45P1.7/SCK/TXD1/TIN56RST/T2EX_/CAP2_7P1.0/T2/CAP1/TIN08P3.1/PWM2_/TXD9P3.0/PWM1_/RXD10P1.1/T2EX/CAP2/TIN1/AIN011P3.3/INT112P3.4/PWM2/RXD1_/T013P3.6/UDP14P3.7/UDM15VCC/VDD16GND/VSS17
EasyEDA_Cloud:CH554PFrom EasyEDA

Footprint

EasyEDA_Cloud:QFN-16_L3.0-W3.0-P0.50-TL-EP1.7From EasyEDA

Parameters

9
ADC (Bit)
8bit
CPU Core
51 Series
CPU Maximum Speed
24MHz
Core Size
8 Bit
Features
Touch function
Operating Temperature
-40℃~+85℃
Oscillator Type
Built-in+External
Program Memory Type
FLASH
Program Storage Size
16KB

Order codes

1

Pinout

17
The pins of the CH554P
PinNameType
1V33Unspecified
2P1.5/MOSI/PWM1/TIN3/AIN2Unspecified
3P1.4/T2_/CAP1_/SCS/TIN2/AIN1Unspecified
4P3.2/TXD1_/INT0/VBUS1/AIN3Unspecified
5P1.6/MISO/RXD1/TIN4Unspecified
6P1.7/SCK/TXD1/TIN5Unspecified
7RST/T2EX_/CAP2_Unspecified
8P1.0/T2/CAP1/TIN0Unspecified
9P3.1/PWM2_/TXDUnspecified
10P3.0/PWM1_/RXDUnspecified
11P1.1/T2EX/CAP2/TIN1/AIN0Unspecified
12P3.3/INT1Unspecified
13P3.4/PWM2/RXD1_/T0Unspecified
14P3.6/UDPUnspecified
15P3.7/UDMUnspecified
16VCC/VDDUnspecified
17GND/VSSUnspecified

Open-source boards using it

All 1
  • 2 layers23 × 34.1 mmSwich payload, the printed circuit board in 3D

    Swich payload

    Pever3ll/switch-microcontroller

    17 parts

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/wch/CH554P" title="CH554P 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/CH554P.jpg" alt="CH554P" width="1200" height="900">
A picture that opens the part, for a README
[![CH554P](https://pcbkit.io/embed/parts/wch/CH554P.jpg?size=s)](https://pcbkit.io/parts/wch/CH554P)

Questions

Is there a KiCad symbol and footprint for the CH554P?

Yes. The symbol is EasyEDA_Cloud:CH554P and the footprint EasyEDA_Cloud:QFN-16_L3.0-W3.0-P0.50-TL-EP1.7, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the CH554P?

QFN-16-EP(3x3), with 17 pins. Its footprint is drawn on this page.

Where is the CH554P datasheet?

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

Where can I order the CH554P?

JLCPCB lists it as part C5180450, with 1,365 in stock; the sellers' links on this page open their listings.

What can replace the CH554P?

Parts like it in the library: the PIC16F15223-I/MG by Microchip Technology, the TTP272-DQBN by Tontek Design Tech, the HT66F2040-16QFN by Holtek Semicon and the HT66F2050-16QFN by Holtek Semicon. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the CH554P?

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

Parts like it

5