2 layers230.3 × 187.9 mm
2 layers54.5 × 74.3 mm
Clock module
zongr-ce/PCB_Design- Size
- 54.5 × 74.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 35
- Nets
- 52
- Pads
- 133
- Tracks, vias
- 182, 2
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 31 May 2024
- Updated
- 17 Jan 2026
Overview
Clock module is an open-source printed circuit board by zongr-ce, from the zongr-ce/PCB_Design repository on GitHub, published under the CC0-1.0 licence. It is a 2-layer board of 54.5 × 74.3 mm with 35 parts on 52 nets, routed with 182 tracks and 2 vias.
It is built around the SN74LS04N, SN74LS08N and SN74LS32N, with the EG1218 and PJ-102A among its other parts. Its parts include 12 capacitors, 8 resistors, 6 ICs, 4 switches and 2 diodes. It belongs with the lEDs and displays boards of this library.
Main components
5
SN74LS04N
PDIP-140℃~+70℃ 1 15ns@5V,15pF 2.7V~3.4V 2V 4.75V~5.25V 400uA 500mV 6 74LS 800mV 8mA PDIP-14 Inverters ROHSTexas InstrumentsInvertersSN74LS08N
PDIP-140℃~+70℃ 2 2.7V~3.4V 20ns@5V,15pF 2V 4 4.75V~5.25V 400uA 500mV 74LS Series 800mV 8mA AND Gate PDIP-14 Logic Gates ROHSTexas InstrumentsLogic GatesSN74LS32N
PDIP-140℃~+70℃ 2 2.7V~3.4V 22ns@5V,15pF 2V 350mV~500mV 4 4.75V~5.25V 400uA 74LS Series 800mV 8mA OR Gate PDIP-14 Logic Gates ROHSTexas InstrumentsLogic Gates
EG1218
插件-20℃~+70℃ 11.6mm 200mA 30V 4mm 7.4mm Black PC Pin Rectangular Columnar SPDT Through Hole Plugin Slide Switches ROHSE-SwitchSlide Switches
PJ-102A
--25℃~+85℃ 11mm 14.4mm 2.5A 24V 2mm 6.4mm 9mm DC Power Jack Right Angle - DC Power Connectors ROHSCUIDC Power Connectors
Parts
35| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 0.1uF | Capacitor_THT:C_Disc_D3.8mm_W2.6mm_P2.50mm | C2, C5, C6, C8, C9, C10, C12 |
| 5 | 1K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R3, R5, R6 |
| 3 | 0.01uF | Capacitor_THT:C_Disc_D3.8mm_W2.6mm_P2.50mm | C3, C7, C11 |
| 3 | LM555xN | Package_DIP:DIP-8_W7.62mm | U1, U4, U6 |
| 2 | 220 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R7, R8 |
| 2 | EG1218 | digikey-footprints:Switch_Slide_11.6x4mm_EG1218 | S1, S2 |
| 1 | 0022232041 | digikey-footprints:PinHeader_1x4_P2.54mm_Drill1.02mm | J2 |
| 1 | 10uF | Capacitor_THT:CP_Radial_Tantal_D5.0mm_P2.50mm | C1 |
| 1 | 1M | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R4 |
| 1 | 1M | Potentiometer_THT:Potentiometer_Piher_PT-15-H01_Horizontal | RV1 |
| 1 | 1uF | Capacitor_THT:CP_Radial_Tantal_D5.0mm_P2.50mm | C4 |
| 1 | BLUE | LED_THT:LED_D3.0mm | D2 |
| 1 | PJ-102A | digikey-footprints:Barrel_Jack_5.5mmODx2.1mmID_PJ-102A | J1 |
| 1 | RED | LED_THT:LED_D3.0mm | D1 |
| 1 | SN74LS04N | digikey-footprints:DIP-14_W3mm | U5 |
| 1 | SN74LS08N | digikey-footprints:DIP-14_W3mm | U3 |
| 1 | SN74LS32N | digikey-footprints:DIP-14_W3mm | U2 |
| 1 | SWITCH | digikey-footprints:Switch_Slide_11.6x4mm_EG1218 | S3 |
| 1 | SW_Push | Button_Switch_THT:SW_PUSH_6mm_H5mm | SW1 |
Questions
How big is the Clock module PCB?
It measures 54.5 × 74.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Clock module use?
35 parts, built around the SN74LS04N, SN74LS08N, SN74LS32N and EG1218. 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 module KiCad files?
From the zongr-ce/PCB_Design repository on GitHub, at the commit this page was made from: the board is KiCad/projects/8_bit_computer/clock_module/clock_module/clock_module.kicad_pcb and its schematic KiCad/projects/555_badge/555_badge/555_badge.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Clock module design in my own project?
Its repository publishes it under the CC0-1.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
More from zongr-ce/PCB_Design
3- 2 layers53.8 × 85.6 mm
- 2 layers44.7 × 61.3 mm
Similar boards
- 4 layers133.4 × 151.8 mm
Clock module 6502
Grudz/6502_Computer
This repository stores everything for my 6502 project. This includes schematics, datasheets, C scripts, and assembly programs
69 parts1 - 2 layers271.8 × 78.7 mm
PCPI AppliCard
baldengineer/bit-preserve
Project for capturing vintage, classic, aka old computer schematics in KiCad.
82 parts446 - 2 layers
- 4 layers64.8 × 62.7 mm
- 2 layers169.1 × 191 mm
Entrex Trapezoid Interface Board v23
ForgottenMachines/Entrex
The technologies documented here will include all like-kind systems manufactured by Nixdorf, Redifon, ROCC & Mera, all originally designed by Entrex Inc, Burlington, MA USA.
101 parts1 - 2 layers76.2 × 73.7 mm
- 2 layers116.8 × 119.4 mm
- 2 layers115.5 × 94.5 mm
BSPD
imamunorzrashid/Break-System-Plausibility-Device
A standalone, analog Brake System Plausibility Device (BSPD) designed for Formula Student / Formula SAE Electric Vehicles.
44 parts