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CH563Q

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WCH(Jiangsu Qin Heng) Microcontroller Units (MCUs/MPUs/SOCs), LQFP-64(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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CH563Q

WCH(Jiangsu Qin Heng) · Microcontroller Units (MCUs/MPUs/SOCs) · LQFP-64(10x10)

CH563Q from WCH(Jiangsu Qin Heng), in a LQFP-64(10x10). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 RSETE passive Resistor to ground for the ETH-PHY, 12K to 18K (12K best performance, 18K lowest power, 15K default).
2 VCC33E power_in 3.3V supply for the Ethernet section.
3 GND power_in Common ground, 0V reference.
4 RXP input Ethernet RXP signal.
5 RXN input Ethernet RXN signal.
6 VCC18E power_in 1.8V supply for the Ethernet section.
7 TXP output Ethernet TXP signal.
8 TXN output Ethernet TXN signal.
9 GND power_in Common ground, 0V reference.
10 XI input Crystal oscillator input.
11 XO bidirectional Crystal oscillator inverted output (listed as I/O).
12 VCC33U power_in 3.3V supply for the USB section.
13 GND power_in Common ground, 0V reference.
14 RSETU passive 12K resistor to ground for the USB-PHY.
15 DN bidirectional USB bus D- data line (UD-).
16 DP bidirectional USB bus D+ data line (UD+).
17 VCC33U power_in 3.3V supply for the USB section.
18 GND power_in Common ground, 0V reference.
19 VCC18 power_in 1.8V core supply for internal circuits.
20 GND power_in Common ground, 0V reference.
21 VCC33 power_in 3.3V I/O port supply.
22 PB0 bidirectional General-purpose I/O PB0; alternate CTS0X (UART0 MODEM clear to send) or PWM0 (PWM output 0).
23 PB1 bidirectional General-purpose I/O PB1; alternate DSR0X (UART0 MODEM data set ready) or CAT0 (timer 0 capture input).
24 PB2 bidirectional General-purpose I/O PB2; alternate RI0X (UART0 MODEM ring indicator) or PWM1 (PWM output 1).
25 PB3 bidirectional General-purpose I/O PB3; alternate DCD0X (UART0 MODEM carrier detect) or CAT1 (timer 1 capture input).
26 PB4 bidirectional General-purpose I/O PB4; alternate DTR0X (UART0 MODEM data terminal ready) or PWM2 (PWM output 2).
27 PB5 bidirectional General-purpose I/O PB5; alternate RTS0X (UART0 MODEM request to send) or CAT2 (timer 2 capture input).
28 VCC18 power_in 1.8V core supply for internal circuits.
29 VCC33 power_in 3.3V I/O port supply.
30 PB6 bidirectional General-purpose I/O PB6; alternate PWM3 (PWM output 3) or CAT3 (timer 3 capture input).
31 PB7 bidirectional General-purpose bidirectional digital I/O PB7.
32 PB16 bidirectional General-purpose I/O PB16; ADCS indicates current channel 0/1 in ADC auto-switch mode, otherwise outputs the sampling pulse.
33 PB17 bidirectional General-purpose I/O PB17; SCK1 is the SPI1 serial clock output.
34 PB18 bidirectional General-purpose I/O PB18; SDO is the SPI1 serial data output.
35 PB19 bidirectional General-purpose I/O PB19; SDI is the SPI1 serial data input, SDX1 the SPI1 simplex-mode data I/O.
36 RST# input External reset input with internal pull-up; low level resets the device, restores I/O and peripherals to defaults and starts execution from address 0.
37 GND power_in Common ground, 0V reference.
38 AVRT power_in ADC positive reference supply, nominally equal to VCC33 but isolated from it to reduce noise.
39 AIN0 input A/D converter input channel 0.
40 VCC33A power_in ADC analog 3.3V supply, nominally equal to VCC33 but isolated from it to reduce noise.
41 GND power_in Common ground, 0V reference.
42 VCC33 power_in 3.3V supply for the ADC section.
43 VCC18 power_in 1.8V core supply for internal circuits.
44 GND power_in Common ground, 0V reference.
45 VCC33 power_in 3.3V I/O port supply.
46 PA7 bidirectional General-purpose I/O PA7; alternate DTR0 (UART0 data terminal ready), TNOW0 (UART0 simplex RS485 transmit enable), TDO or external memory address line A7.
47 PA12 bidirectional General-purpose I/O PA12; alternate CTS0 (UART0 MODEM clear to send) or external memory address line A12.
48 GND power_in Common ground, 0V reference.
49 PA8 bidirectional 5V-tolerant general-purpose I/O PA8; alternate RTS0 (UART0 request to send), UID (USB ID input) or address line A8.
50 PA11 bidirectional 5V-tolerant general-purpose I/O PA11; alternate SLVCS# (slave parallel chip select input) or address line A11.
51 PA17 bidirectional 5V-tolerant general-purpose I/O PA17; alternate RTS1 (UART1 request to send), TNOW1 (UART1 simplex RS485 transmit enable) or address line A17.
52 PA18 bidirectional 5V-tolerant general-purpose I/O PA18; alternate ELINK# (Ethernet link LED drive) or address line A18.
53 PA19 bidirectional 5V-tolerant general-purpose I/O PA19; alternate VBUS (USB bus power detect input) or address line A19.
54 VCC18 power_in 1.8V core supply for internal circuits.
55 PB8 bidirectional 5V-tolerant general-purpose I/O PB8; RXD0 is the UART0 receiver input.
56 PB9 bidirectional 5V-tolerant general-purpose I/O PB9; TXD0 is the UART0 transmitter output.
57 PB10 bidirectional 5V-tolerant general-purpose I/O PB10; RXD1 is the UART1 receiver input, RXTX1 the UART1 simplex I/O.
58 PB11 bidirectional 5V-tolerant general-purpose I/O PB11; TXD1 is the UART1 transmitter output.
59 PB12 bidirectional 5V-tolerant general-purpose I/O PB12; SCS is the SPI0 slave chip select input.
60 PB13 bidirectional 5V-tolerant general-purpose I/O PB13; SCK0 is the SPI0 serial clock.
61 PB14 bidirectional 5V-tolerant general-purpose I/O PB14; MOSI is the SPI0 serial data pin (master out/slave in).
62 PB15 bidirectional 5V-tolerant general-purpose I/O PB15; MISO is the SPI0 serial data pin (master in/slave out), SDX0 the SPI0 simplex data I/O.
63 VCC33 power_in 3.3V I/O port supply.
64 VCC18 power_in 1.8V core supply for internal circuits.

Key specifications

Parameter Value
Manufacturer WCH(Jiangsu Qin Heng)
Package LQFP-64(10x10)
Category Embedded Processors & Controllers
Pins 64

CAD (KiCad official)

  • Symbol: CH563Q
  • Footprint: Package_QFP:LQFP-64_10x10mm_P0.5mm
  • 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)
  • 3D model files: ch563q-etched.step / ch563q-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ch563q.step / ch563q.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: WCH(Jiangsu Qin Heng) datasheet (154 pp, sha256 c27334cb7b522fa1, retrieved 2026-10-23, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF