2 layers50 × 35 mm
2 layers17.8 × 33 mm
ProMicroCH552
akita11/ProMicroCH5527ProMicro-form-factored CH552 board
- Size
- 17.8 × 33 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 17
- Nets
- 32
- Pads
- 89
- Tracks, vias
- 257, 36
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 31 Dec 2021
- Updated
- 28 Jan 2022
Overview
ProMicroCH552 is an open-source printed circuit board by akita11, from the akita11/ProMicroCH552 repository on GitHub, published under the MIT licence. It is a 2-layer board of 17.8 × 33 mm with 17 parts on 32 nets, routed with 257 tracks and 36 vias.
Its parts include 5 resistors, 3 diodes, 3 connectors, 2 capacitors and 1 IC. It belongs with the AVR (ATmega, ATtiny) boards of this library.
README
README.mdProMicroCH552
WCH(南京沁恒微电子股份有限公司)の8ビットマイコンCH552を使った、ProMicro型のマイコンボードです。 主な特徴は以下のとおりです。
- ProMicro型
- ArduinoIDEなどでプログラム開発が可能
- USBペリフェラル（キーボードやUSBメモリなど）として動作可能
- USB Type-Cコネクタ
またProMicroとは、以下のような違いがあります。
- 一部ピンの機能が異なる
- 一部未接続の端子がある
- +3.3V出力の電流供給能力は100mA程度（CH552内蔵レギュレータの性能）
- リセット(RST)は正論理で、"1"でリセット
- +5V端子に、外部電源から+5Vを供給可能（内部にレギュレータはないので、+5Vを超える電圧は不可）
ピン配置
基板上の"LED"（オレンジ）はP1.7で駆動できます。
訂正
基板上の2個のシルク表示が逆になっているロットがあります。正しくは、R4側が"LED"（オレンジ）、反対側が"POW"（緑、電源インジケータ）です。
Author
Junichi Akita (@akita11) / akita@ifdl.jp
Parts
17| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 0.1u | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | 1k | Resistor_SMD:R_0603_1608Metric | R3, R4 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 2 | Conn_01x12 | Connector_PinSocket_2.54mm:PinSocket_1x12_P2.54mm_Vertical | J1, J2 |
| 2 | LED | LED_SMD:LED_0603_1608Metric | D2, D3 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | CON_USB-C-16 | akita:USB-C_16P_TH | CN1 |
| 1 | DIODE | akita:D_SOD123FL | D1 |
| 1 | MCU_CH552T | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U1 |
| 1 | Polyfuse | Resistor_SMD:R_1210_3225Metric | F1 |
| 1 | SW_Push | Button_Switch_SMD:SW_Push_SPST_NO_Alps_SKRK | SW1 |
| 1 | TR_NMOS_IRLML6344 | Package_TO_SOT_SMD:SOT-23 | Q1 |
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Questions
How big is the ProMicroCH552 PCB?
It measures 17.8 × 33 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ProMicroCH552 use?
17 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the ProMicroCH552 KiCad files?
From the akita11/ProMicroCH552 repository on GitHub, at the commit this page was made from: the board is ProMicroCH552.kicad_pcb and its schematic ProMicroCH552.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ProMicroCH552 design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).