2 layers50 × 100 mm
2 layers72 × 42 mm
Clock pcb
npaige751/synth_modulesKiCAD designs for modular synthesizer modules
- Size
- 72 × 42 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 28
- Nets
- 37
- Pads
- 107
- Tracks, vias
- 144, 8
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 10 Oct 2025
- Updated
- 10 Oct 2025
Overview
Clock pcb is an open-source printed circuit board by npaige751, from the npaige751/synth_modules repository on GitHub. It is a 2-layer board of 72 × 42 mm with 28 parts on 37 nets, routed with 144 tracks and 8 vias.
It is built around the 74LS393P-E, 74LVC1G08Z and NE555P. Its parts include 11 resistors, 8 capacitors, 5 ICs and 2 connectors. It belongs with the lEDs and displays boards of this library.
Main components
3
74LS393P-E
DIP-14-20℃~+75℃ 2 35MHz 4 4.75V~5.25V 400mW 40ns@5V,15pF 74LS Binary Counter Reset function DIP-14 Counters, Dividers ROHSRenesas ElectronicsCounters, Dividers
74LVC1G08Z
SOT-553-5-40℃~+125℃ 1 1.65V~5.5V 1.7V、2V 2 2.4V、3.8V 32mA 32mA 4ns@5V,50pF 550mV、800mV 700mV、800mV 74LVC Series AND Gate SOT-553-5 Logic Gates ROHSDiodes IncorporatedLogic Gates
NE555P
DIP-80℃~+70℃ 100kHz 10mA 4.5V~16V DIP-8 555 Timers / Counters ROHSTexas InstrumentsTimers / Counters
Parts
28| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 1K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2, R3, R4, R5, R6, R7, R8, R9, R10 |
| 6 | 0.1u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2, C4, C6, C7, C8 |
| 2 | 1u | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C3, C5 |
| 2 | 74LS393 | Package_DIP:DIP-14_W7.62mm | U2, U3 |
| 2 | MountingHole | MountingHole:MountingHole_3.2mm_M3_DIN965 | H1, H2 |
| 1 | 1K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R11 |
| 1 | 2K2 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | 74LVC1G08 | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U4 |
| 1 | Conn_01x10_Socket | Connector_PinHeader_2.54mm:PinHeader_1x11_P2.54mm_Vertical | J1 |
| 1 | Conn_02x05_Counter_Clockwise | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J2 |
| 1 | NCP718xSN500 | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U7 |
| 1 | NE555P | Package_DIP:DIP-8_W7.62mm | U1 |
Questions
How big is the Clock pcb PCB?
It measures 72 × 42 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Clock pcb use?
28 parts, built around the 74LS393P-E, 74LVC1G08Z and NE555P. 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 Clock pcb KiCad files?
From the npaige751/synth_modules repository on GitHub, at the commit this page was made from: the board is clock/clock_pcb/clock_pcb.kicad_pcb and its schematic clock/clock_panel/clock_panel.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Clock pcb design in my own project?
Its repository states no licence, so its author keeps all rights: ask npaige751 before reusing the design.
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