component

CH571R

Public Made by Adom

by adom

WCH(Jiangsu Qin Heng) Microcontrollers (MCU/MPU/SOC), TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentembedded processors & controllersch571rfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 2h ago
viewers ch571r: viewers · Ray 2h ago
ch571r-etched.glb Publish 0.1.0 · Ray 2h ago
ch571r-etched.step ch571r: factory component page (tier=lcsc) · Ray 2h ago
ch571r-hero.glb ch571r: hero GLB from the etched model (keeps the MPN mark) · Ray 2h ago
ch571r-hero.overlay.json Publish 0.1.0 · Ray 2h ago
ch571r.glb Publish 0.1.0 · Ray 2h ago
ch571r.kicad_mod Publish 0.1.0 · Ray 2h ago
ch571r.kicad_sym Publish 0.1.0 · Ray 2h ago
ch571r.lbr Publish 0.1.0 · Ray 2h ago
ch571r.step Publish 0.1.0 · Ray 2h ago
package.json Publish 0.1.0 · Ray 2h ago
page.json Set visibility: public · Ray 2h ago
README.md Publish 0.1.0 · Ray 2h ago

CH571R

WCH(Jiangsu Qin Heng) · Microcontrollers (MCU/MPU/SOC) · TSSOP-16

CH571R from WCH(Jiangsu Qin Heng), in a TSSOP-16. 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 PA15 bidirectional General-purpose I/O PA15 with analog ADC input AIN5, SPI0 MISO (master input/slave output) and UART0 RXD0_ remap.
2 PA14 bidirectional General-purpose I/O PA14 with analog ADC input AIN4, SPI0 MOSI (master output/slave input) and UART0 TXD0_ remap.
3 PA13 bidirectional General-purpose I/O PA13 with analog ADC input AIN3 and SPI0 serial clock SCK0.
4 PA12 bidirectional General-purpose I/O PA12 with analog ADC input AIN2 and SPI0 active-low slave chip-select input SCS.
5 VIO33/VDD33 power_in Combined DC-DC/battery supply input and I/O supply input (2.3V to 3.6V for non-CH573X parts) needing a decoupling capacitor close to the pin, 0.1uF or more recommended.
6 PA8 bidirectional General-purpose I/O PA8 with UART1 serial data input RXD1.
7 PA9 bidirectional General-purpose I/O PA9 with timer 0 capture input/PWM output TMR0 and UART1 serial data output TXD1.
8 PB11 bidirectional General-purpose I/O PB11 with USB D+ data line UD+ (no series resistor allowed when used for USB) and timer 2 pin remap TMR2_.
9 PB10 bidirectional General-purpose I/O PB10 with USB D- data line UD- (no series resistor allowed when used for USB) and timer 1 pin remap TMR1_.
10 PB23 bidirectional General-purpose I/O PB23 with active-low external reset input RST# (internal pull-up, minimum pulse 100ns) and timer 0 pin remap TMR0_.
11 PB22 bidirectional General-purpose I/O PB22 with timer 3 capture input/PWM output TMR3.
12 X32MO bidirectional Inverting output of the high-frequency oscillator HSE, connects to one side of the 32MHz crystal.
13 X32MI input Input of the high-frequency oscillator HSE, connects to the other side of the 32MHz crystal.
14 VINTA passive Internal analog supply node needing a decoupling capacitor close to the pin: 0.47uF or larger without DC-DC, 1uF (0.47uF to 2.2uF supported) with DC-DC.
15 GND power_in Common ground, 0V reference point.
16 ANT bidirectional RF signal input/output, recommended to connect directly to the antenna.

Key specifications

Parameter Value
Manufacturer WCH(Jiangsu Qin Heng)
Package TSSOP-16
Category Embedded Processors & Controllers
Pins 16

CAD (KiCad official)

  • Symbol: CH571R
  • Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
  • 3D model: TSSOP-16 (KiCad packages3D, STEP)
  • 3D model files: ch571r-etched.step / ch571r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ch571r.step / ch571r.glb are the bare package body.

Provenance

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

  • Datasheet: WCH(Jiangsu Qin Heng) datasheet (97 pp, sha256 d2c436092d64dd3c, retrieved 2026-10-26, 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