

8x1 ext
- Size
- 100 × 19 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 42
- Nets
- 62
- Pads
- 231
- Tracks, vias
- 1,146, 199
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 5 Jul 2023
- Updated
- 27 Oct 2026
Overview
8x1 ext is an open-source printed circuit board by McbeEringi, from the McbeEringi/pcb-stuff repository on GitHub, published under the MIT licence. It is a 2-layer board of 100 × 19 mm with 42 parts on 62 nets, routed with 1,146 tracks and 199 vias.
It is built around the CH340E, 74HC595 and TS5A23159DGSR. Its parts include 16 resistors, 14 ICs, 4 capacitors, 3 connectors and 1 diode.
Main components
3CH340E
MSOP-10150uA 20mA 2Mbps 3.3V、5V Transceiver USB 2.0 MSOP-10 USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB Converters74HC595
SOP-16-40℃~+85℃ 1 100ns@5V,50pF 10MHz 2V~6V 74HC 8 Serial-to-Serial or Parallel Tri-State SOP-16 Shift Registers ROHSGRShift RegistersTS5A23159DGSR
VSSOP-10-0.5mm-40℃~+85℃ 1.1Ω 1.65V~5.5V 100MHz 15ns 2 20ns 2:1 VSSOP-10-0.5mm Analog Switches, Multiplexers ROHSTexas InstrumentsAnalog Switches, Multiplexers
Parts
42| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 100R | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4, R5, R6, R7, R8 |
| 8 | D168K | Display_7Segment:D1X8K | U3, U4, U5, U6, U7, U8, U9, U10 |
| 3 | 4k7 | Resistor_SMD:R_0603_1608Metric | R13, R14, R15 |
| 2 | 5k1 | Resistor_SMD:R_0603_1608Metric | R10, R11 |
| 2 | 74HC595 | Package_SO:TSSOP-16_4.4x5mm_P0.65mm | U1, U2 |
| 2 | I2C | Connector_JST:JST_ZH_B4B-ZR_1x04_P1.50mm_Vertical | J2, J3 |
| 1 | Library:PCB.MCBEERINGI.DEV_small | ||
| 1 | 0u1 | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | 100u | Capacitor_SMD:C_1206_3216Metric | C4 |
| 1 | 10n | Capacitor_SMD:C_0603_1608Metric | C1 |
| 1 | 1k | Resistor_SMD:R_0603_1608Metric | R9 |
| 1 | 1u | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | AVR_CTL | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U14 |
| 1 | AVR_DISP | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U11 |
| 1 | CH340E | Package_SO:MSOP-10_3x3mm_P0.5mm | U12 |
| 1 | Jumper_3_Open | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JP1 |
| 1 | LED_TNOW | LED_SMD:LED_0603_1608Metric | D3 |
| 1 | LOGO | LOGO | G*** |
| 1 | NC | Resistor_SMD:R_0603_1608Metric | R16 |
| 1 | R_TNOW | Resistor_SMD:R_0603_1608Metric | R12 |
| 1 | SW_Push | Library:alps-skrp | SW1 |
| 1 | TS5A23159DGS | Package_SO:VSSOP-10_3x3mm_P0.5mm | U13 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J4 |
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Questions
How big is the 8x1 ext PCB?
It measures 100 × 19 mm and has 2 copper layers, 1.6 mm thick.
What parts does the 8x1 ext use?
42 parts, built around the CH340E, 74HC595 and TS5A23159DGSR. 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 8x1 ext KiCad files?
From the McbeEringi/pcb-stuff repository on GitHub, at the commit this page was made from: the board is proj/light/7seg/8x1_ext/8x1_ext.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the 8x1 ext 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).