CH559Pico
About the CH559Pico PCB
CH559Pico is an open source PCB design by akita11, published on GitHub under the MIT license. It is a 2-layer board measuring 21 × 50.8 mm, with 19 components from 12 distinct parts.
Other key parts include the MCU_CH559L. By type, the board carries 5 connectors, 4 resistors, 3 diodes, 2 switches, 2 capacitors and 1 IC.
From the project
WCH(南京沁恒微电子股份有限公司)の8ビットマイコンCH559を使った、RaspberryPi Pico型のマイコンボードです。 主な特徴は以下のとおりです。
WCH(南京沁恒微电子股份有限公司)の8ビットマイコンCH559を使った、RaspberryPi Pico型のマイコンボードです。 主な特徴は以下のとおりです。
- RaspberryPi Pico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）、USBホストとして動作可能
またRaspberryPi Pico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 - IOピンは基本3.3V（P1.0-7とP4.6/7のみ5V入力OK） - +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）
Main components on the CH559Pico
CH559Pico bill of materials (BOM)
19 components, 12 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MCU_CH559L | LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | TR_NMOS_IRLML6344 | SOT-23 | Q1 |
| 1 | CON_USB-C-16 | USB-C_16P_TH | CN1 |
| 2 | Conn_01x20 | Socker2.54mm_20p_OvalPad | J1, J2 |
| 2 | Conn_01x01 | Pad_SMD1.6mm | J3, J4 |
| 1 | Polyfuse | R_1210_3225Metric | F1 |
| 2 | SW_Push | SW_Push_SPST_NO_Alps_SKRK | SW1, SW2 |
| 2 | LED | LED_0603_1608Metric | D1, D2 |
| 1 | DIODE | D_SOD123FL | D3 |
| 2 | 0.1u | C_0603_1608Metric | C1, C2 |
| 2 | 5.1k | R_0603_1608Metric | R1, R2 |
| 2 | 1k | R_0603_1608Metric | R4, R5 |
CH559Pico design files
The KiCad project lives in the akita11/CH559Pico repository on GitHub; these links point at the commit this page was built from.
- LayoutCH559Pico.kicad_pcb
- SchematicCH559Pico.kicad_sch
CH559Pico: common questions
How big is the CH559Pico PCB?
The CH559Pico measures 21 × 50.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the CH559Pico?
19 components, from 12 distinct parts. The full bill of materials is listed on this page.
Where can I download the CH559Pico design files?
From the akita11/CH559Pico repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the CH559Pico design in my own project?
Yes, under the terms of its MIT license, which akita11 chose for the repository.