component

CH554G

Public Made by Adom

by adom

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

componentembedded processors & controllersch554gfactory-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 8d ago
viewers ch554g: viewers · Ray 8d ago
ch554g-etched.glb Publish 0.1.0 · Ray 8d ago
ch554g-etched.step ch554g: factory component page (tier=lcsc) · Ray 8d ago
ch554g-hero.glb ch554g: hero GLB from the etched model (keeps the MPN mark) · Ray 8d ago
ch554g-hero.overlay.json Publish 0.1.0 · Ray 8d ago
ch554g.glb Publish 0.1.0 · Ray 8d ago
ch554g.kicad_mod Publish 0.1.0 · Ray 8d ago
ch554g.kicad_sym Publish 0.1.0 · Ray 8d ago
ch554g.lbr Publish 0.1.0 · Ray 8d ago
ch554g.step Publish 0.1.0 · Ray 8d ago
package.json Publish 0.1.0 · Ray 8d ago
page.json Set visibility: public · Ray 8d ago
README.md Publish 0.1.0 · Ray 8d ago

CH554G

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

CH554G from WCH Jiangsu Qin Heng, in a SOP-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 P3.2 bidirectional General-purpose I/O with alternate functions TXD1_ (UART1 transmit, remapped), INT0 external interrupt 0 input, VBUS1 USB Type-C bus-voltage detect input and AIN3 ADC/comparator input channel 3.
2 P1.4 bidirectional General-purpose I/O with alternate functions T2_/CAP1_ (Timer2 remapped), SCS SPI0 chip-select, TIN2 touch-key input, UCC1 USB Type-C configuration channel and AIN1 ADC input; an analog input pin must be set to high-impedance input or open-drain output high with pull-up disabled.
3 P1.5 bidirectional General-purpose I/O with alternate functions MOSI (SPI0), PWM1 output, TIN3 touch-key input, UCC2 USB Type-C configuration channel and AIN2 ADC input; analog use requires high-impedance or open-drain high input configuration.
4 P1.6 bidirectional General-purpose I/O with alternate functions MISO (SPI0), RXD1 (UART1 receive) and TIN4 touch-key input; it is also the programming MISO pin when ISP/in-board programming is used.
5 P1.7 bidirectional General-purpose I/O with alternate functions SCK (SPI0 clock), TXD1 (UART1 transmit) and TIN5 touch-key input; it is also the programming SCK pin when in-board programming is used.
6 RST input External reset input with an internal pull-down resistor; it can serve as a manual reset input only when the En_RST_RESET configuration bit is enabled.
7 P3.1 bidirectional General-purpose I/O with alternate functions TXD (UART0 transmit, default) and PWM2_ (PWM2 output, remapped); the PWM2 function takes priority over TXD when both are enabled.
8 P3.0 bidirectional General-purpose I/O with alternate functions RXD (UART0 receive, default) and PWM1_ (PWM1 output, remapped).
9 P1.1 bidirectional General-purpose I/O with alternate functions T2EX/CAP2 (Timer2 external reload/capture input), TIN1 touch-key input, VBUS2 USB Type-C bus-voltage detect input and AIN0 ADC input channel 0.
10 P3.3 bidirectional General-purpose I/O with alternate function INT1, the external interrupt 1 input.
11 P3.4 bidirectional General-purpose I/O with alternate functions PWM2 output, RXD1_ (UART1 receive, remapped) and T0 (Timer0 external input).
12 P3.6 bidirectional General-purpose I/O and USB D+ signal UDP; P3.6 and P3.7 use V33 as I/O supply so their high level cannot exceed V33 (not 5 V tolerant), and no series resistor may be placed on the USB signal when used for USB.
13 P3.7 bidirectional General-purpose I/O and USB D- signal UDM; like P3.6 it uses V33 as I/O supply so its high level is limited to V33, and no series resistor may be placed on the USB signal when used for USB.
14 GND power_in Common ground (VSS) for the device; the package bottom ground connection on the SOP16 is this pin.
15 VCC power_in Power supply input (VDD) that requires an external 0.1 uF decoupling capacitor to GND.
16 V33 power_out Internal USB power regulator output and internal USB power input: connect the external supply here when the supply is below 3.6 V, or add an external 0.1 uF decoupling capacitor when the supply is above 3.6 V.

Key specifications

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

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
工作时的环境温度 TA -40 85 ℃ 53
储存时的环境温度 TS -55 125 ℃ 53
电源电压(VCC 接电源，GND 接地) VCC -0.4 5.8 V VCC 接电源，GND 接地 53
除 P3.6/P3.7 之外其它输入或者输出引脚上的电压 VIO -0.4 V max printed as VCC+0.4 V 53
P3.6/P3.7 输入或者输出引脚上的电压 VIOU -0.4 V max printed as V33+0.4 V 53
VCC 引脚电源电压 (V33 仅外接电容, 5V) VCC5 3.7 5 5.5 V TA=25℃, VCC=5V, Fsys=6MHz; V33 仅外接电容 53
内部 USB 电源调整器输出电压 V33 3.14 3.27 3.4 V TA=25℃, VCC=5V, Fsys=6MHz 53
Fsys=24MHz 工作时的总电源电流 ICC24M5 8 11 mA TA=25℃, VCC=5V, Fsys=6MHz 53
Fsys=6MHz 工作时的总电源电流 ICC6M5 4 6 mA TA=25℃, VCC=5V, Fsys=6MHz 53
Fsys=750KHz 工作时的总电源电流 ICC750K5 2 3 mA TA=25℃, VCC=5V, Fsys=6MHz 53
睡眠后的总电源电流 ISLP5 0.1 0.2 mA TA=25℃, VCC=5V, Fsys=6MHz 53
完全睡眠后的总电源电流 ISLP5L 0.008 0.025 mA VCC=V33=5V，且选用外部晶体时钟，且 bLDO3V3_OFF=1 关闭 LDO 53
ADC 模数转换模块工作电流 IADC5 200 800 uA TA=25℃, VCC=5V, Fsys=6MHz 53
电压比较器模块工作电流 ICMP5 100 500 uA TA=25℃, VCC=5V, Fsys=6MHz 53
触摸按键电容检测模块工作电流 ITKEY5 150 250 uA TA=25℃, VCC=5V, Fsys=6MHz 53
低电平输入电压 VIL5 -0.4 1.2 V TA=25℃, VCC=5V, Fsys=6MHz 53
高电平输入电压 VIH5 2.4 V TA=25℃, VCC=5V, Fsys=6MHz; max printed as VCC+0.4 V 53
低电平输出电压 VOL5 0.4 V 12mA 吸入电流; TA=25℃, VCC=5V, Fsys=6MHz 53
无上拉输入端的输入电流 IIN -5 0 5 uA TA=25℃, VCC=5V, Fsys=6MHz 53
带下拉电阻输入端的输入电流 IDN5 -35 -70 -140 uA TA=25℃, VCC=5V, Fsys=6MHz 53
带上拉电阻输入端的输入电流 IUP5 35 70 140 uA TA=25℃, VCC=5V, Fsys=6MHz 53
带上拉输入端由低向高翻转时的输入电流 IUP5X 250 400 600 uA TA=25℃, VCC=5V, Fsys=6MHz 53
电源上电复位的门限电压 (5V) Vpot 2.1 2.3 2.5 V TA=25℃, VCC=5V, Fsys=6MHz 53
VCC 引脚电源电压 (V33 短接到 VCC，开启 USB) VCC3 3 3.3 3.6 V V33 短接到 VCC，开启 USB; TA=25℃, VCC=V33=3.3V, Fsys=6MHz 53
VCC 引脚电源电压 (V33 短接到 VCC，关闭 USB) VCC3 2.7 3.3 3.6 V V33 短接到 VCC，关闭 USB; TA=25℃, VCC=V33=3.3V, Fsys=6MHz 53
Fsys=16MHz 工作时的总电源电流 ICC16M3 4 6 mA TA=25℃, VCC=V33=3.3V, Fsys=6MHz 53
Fsys=6MHz 工作时的总电源电流 ICC6M3 2 4 mA TA=25℃, VCC=V33=3.3V, Fsys=6MHz 53
Fsys=750KHz 工作时的总电源电流 ICC750K3 1 2 mA TA=25℃, VCC=V33=3.3V, Fsys=6MHz 53
睡眠后的总电源电流 ISLP3 0.07 0.15 mA TA=25℃, VCC=V33=3.3V, Fsys=6MHz 53
完全睡眠后的总电源电流 ISLP3L 0.004 0.015 mA bLDO3V3_OFF=1 关闭 LDO，完全睡眠后的总电源电流 54
ADC 模数转换模块工作电流 IADC3 150 500 uA TA=25℃, VCC=V33=3.3V, Fsys=6MHz 54
电压比较器模块工作电流 ICMP3 70 300 uA TA=25℃, VCC=V33=3.3V, Fsys=6MHz 54
触摸按键电容检测模块工作电流 ITKEY3 130 200 uA TA=25℃, VCC=V33=3.3V, Fsys=6MHz 54
低电平输入电压 VIL3 -0.4 0.8 V TA=25℃, VCC=V33=3.3V, Fsys=6MHz 54
高电平输入电压 VIH3 1.9 V TA=25℃, VCC=V33=3.3V, Fsys=6MHz; max printed as VCC+0.4 V 54
低电平输出电压 VOL3 0.4 V 8mA 吸入电流; TA=25℃, VCC=V33=3.3V, Fsys=6MHz 54
无上拉输入端的输入电流 IIN -5 0 5 uA TA=25℃, VCC=V33=3.3V, Fsys=6MHz 54
带下拉电阻输入端的输入电流 IDN3 -15 -30 -60 uA TA=25℃, VCC=V33=3.3V, Fsys=6MHz 54
带上拉电阻输入端的输入电流 IUP3 15 30 60 uA TA=25℃, VCC=V33=3.3V, Fsys=6MHz 54
带上拉输入端由低向高翻转时的输入电流 IUP3X 100 170 250 uA TA=25℃, VCC=V33=3.3V, Fsys=6MHz 54
电源上电复位的门限电压 (3.3V) Vpot 2.1 2.3 2.5 V TA=25℃, VCC=V33=3.3V, Fsys=6MHz 54
外部晶体频率或者 XI 输入时钟频率 Fxt 6 24 25 MHz TA=25℃, VCC=5V 或 VCC=V33=3.3V, Fsys=6MHz 54
V33=3V～3.6V 时经校准后的内部时钟频率 Fosc 23.52 24 24.48 MHz TA=25℃, VCC=5V 或 VCC=V33=3.3V, Fsys=6MHz 54
V33=2.8V～3V 时经校准后的内部时钟频率 Fosc28 23.2 24 24.72 MHz TA=25℃, VCC=5V 或 VCC=V33=3.3V, Fsys=6MHz 54
V33=2.7V 时经校准后的内部时钟频率 Fosc27 21 24 25 MHz TA=25℃, VCC=5V 或 VCC=V33=3.3V, Fsys=6MHz 54
内部倍频后的 PLL 频率 Fpll 24 96 100 MHz TA=25℃, VCC=5V 或 VCC=V33=3.3V, Fsys=6MHz 54
USB 采样时钟频率 (使用 USB 主机功能时) Fusb4x 47.98 48 48.02 MHz 使用 USB 主机功能时 54
USB 采样时钟频率 (使用 USB 设备功能时) Fusb4x 47.04 48 48.96 MHz 使用 USB 设备功能时 54
系统主频时钟频率（VCC>=4.4V） Fsys 0.1 6 24 MHz TA=25℃, VCC=5V 或 VCC=V33=3.3V, Fsys=6MHz 54
系统主频时钟频率（4.4V>VCC>=3.3V） Fsys 0.1 6 16 MHz TA=25℃, VCC=5V 或 VCC=V33=3.3V, Fsys=6MHz 54
系统主频时钟频率（VCC<3.3V） Fsys 0.1 6 12 MHz TA=25℃, VCC=5V 或 VCC=V33=3.3V, Fsys=6MHz 54
电源上电复位延时 Tpor 9 11 15 mS TA=25℃, VCC=5V 或 VCC=V33=3.3V, Fsys=6MHz 54
从 RST 外部输入有效复位信号的宽度 Trst 70 nS 54
热复位延时 Trdl 30 45 60 uS TA=25℃, VCC=5V 或 VCC=V33=3.3V, Fsys=6MHz 54
USB 主机模式下检测 USB 自动挂起时间 Tusp 2 3 4 mS USB 主机模式下 54
USB 设备模式下检测 USB 自动挂起时间 Tusp 4 5 6 mS USB 设备模式下 54
芯片睡眠后唤醒完成时间 Twak 1 2 10 uS TA=25℃, VCC=5V 或 VCC=V33=3.3V, Fsys=6MHz 54

CAD (KiCad official)

  • Symbol: CH554G
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOP-16 (KiCad packages3D, STEP)
  • 3D model files: ch554g-etched.step / ch554g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ch554g.step / ch554g.glb are the bare package body.

Provenance

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

  • Datasheet: WCH Jiangsu Qin Heng datasheet (57 pp, sha256 9b21d66e1b11018b, retrieved 2026-10-18, 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-haiku-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