2 layers53 × 91 mm
2 layers53 × 91 mm
Counter
imihajlow/discrete-clock1A digital clock made of N-MOSFETs, diodes, and resistors.
- Size
- 53 × 91 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 192
- Nets
- 80
- Pads
- 421
- Tracks, vias
- 1,152, 126
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 24 Nov 2018
- Updated
- 13 Jan 2019
Overview
Counter is an open-source printed circuit board by imihajlow, from the imihajlow/discrete-clock repository on GitHub. It is a 2-layer board of 53 × 91 mm with 192 parts on 80 nets, routed with 1,152 tracks and 126 vias.
Its parts include 102 diodes, 43 resistors, 35 transistors, 5 connectors and 3 capacitors.
Parts
192| Qty | Value | Footprint | References |
|---|---|---|---|
| 98 | D | Diode_SMD:D_MiniMELF | D10, D11, D12, D13, D14, D15, D16, D17, D18, D100, D101, D102, D103, D104, D105, D106 +82 |
| 35 | Q_NMOS_GSD | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q10, Q11, Q12, Q13, Q14, Q15, Q16, Q17, Q18, Q19, Q20, Q21, Q22, Q23 +19 |
| 34 | 20k | Resistor_SMD:R_0805_2012Metric | R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25 +18 |
| 4 | 10k | Resistor_SMD:R_0805_2012Metric | R38, R39, R40, R41 |
| 4 | 330 | Resistor_SMD:R_0805_2012Metric | R1, R2, R3, R4 |
| 4 | LED | LED_SMD:LED_0805_2012Metric_Castellated | D1, D2, D3, D4 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H1, H2, H3, H4 |
| 1 | .1u | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 10u 16v | Capacitor_Tantalum_SMD:CP_EIA-3528-21_Kemet-B_Pad1.50x2.35mm_HandSolder | C2 |
| 1 | 1n | Capacitor_SMD:C_0805_2012Metric | C3 |
| 1 | 40k | Resistor_SMD:R_0805_2012Metric | R43 |
| 1 | CLK | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | Carry | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | Power | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | Q | Connector_IDC:IDC-Header_2x04_P2.54mm_Vertical | J4 |
| 1 | ~RST | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J5 |
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Questions
How big is the Counter PCB?
It measures 53 × 91 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Counter use?
192 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 Counter KiCad files?
From the imihajlow/discrete-clock repository on GitHub, at the commit this page was made from: the board is sch/counter/counter.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Counter design in my own project?
Its repository states no licence, so its author keeps all rights: ask imihajlow before reusing the design.