Skip to the content
PCBKitNew board
4 layers130.2 × 64.1 mmFull555Timer, the printed circuit board in 3D

Full555Timer

a10001110101/PCBs

Various gerbers and other files for PCB design

Size
130.2 × 64.1 mm
Copper layers
4
Thickness
1.6 mm
Parts
50
Nets
47
Pads
151
Tracks, vias
354, 0
Routed
Yes
KiCad
KiCad 6 (file 20211014)
Created
29 Oct 2021
Updated
10 Jan 2022

Overview

Full555Timer is an open-source printed circuit board by a10001110101, from the a10001110101/PCBs repository on GitHub, published under the MIT licence. It is a 4-layer board of 130.2 × 64.1 mm with 50 parts on 47 nets, routed with 354 tracks and 0 vias.

It is built around the NE555, 74LS04PC and 74LS32SC. Its parts include 21 resistors, 9 capacitors, 7 connectors, 6 ICs and 4 diodes.

Main components

3

README

README.md

PCBs

Various gerbers and other files for PCB design

Parts

50
QtyValueFootprintReferences
161KResistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_HorizontalR1, R2, R3, R5, R6, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21
60.01uFCapacitor_THT:C_Disc_D6.0mm_W2.5mm_P5.00mmC2, C4, C6, C7, C8, C9
4220Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_HorizontalR7, R8, R9, R10
3NE555Package_DIP:DIP-8_W7.62mmU1, U2, U3
3YELLOWLED_THT:LED_D3.0mmD1, D2, D3
1/CLKConnector_PinHeader_1.00mm:PinHeader_1x01_P1.00mm_VerticalJ4
10.1uFCapacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mmC5
110uFCapacitor_THT:CP_Radial_D6.3mm_P2.50mmC1
11MResistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_HorizontalR4
11MPotentiometer_THT:Potentiometer_Bourns_3386C_HorizontalRV1
11uFCapacitor_THT:CP_Radial_D5.0mm_P2.50mmC3
15VConnector_PinHeader_1.00mm:PinHeader_1x01_P1.00mm_VerticalJ2
174LS04Package_DIP:DIP-14_W7.62mmU5
174LS08Package_DIP:DIP-14_W7.62mmU4
174LS32Package_DIP:DIP-14_W7.62mmU6
1BLUELED_THT:LED_D3.0mmD4
1CLKConnector_PinHeader_1.00mm:PinHeader_1x01_P1.00mm_VerticalJ5
1GNDConnector_PinHeader_1.00mm:PinHeader_1x01_P1.00mm_VerticalJ1
1HLTConnector_PinHeader_1.00mm:PinHeader_1x01_P1.00mm_VerticalJ3
1HLT5VConnector_PinHeader_1.00mm:PinHeader_1x01_P1.00mm_VerticalJ7
1HLTGNDConnector_PinHeader_1.00mm:PinHeader_1x01_P1.00mm_VerticalJ6
1SPDTPCB:SW_SS-12E17SW2
1SWITCHPCB:B3F-1000SW1

Questions

How big is the Full555Timer PCB?

It measures 130.2 × 64.1 mm and has 4 copper layers, 1.6 mm thick.

What parts does the Full555Timer use?

50 parts, built around the NE555, 74LS04PC and 74LS32SC. 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 Full555Timer KiCad files?

From the a10001110101/PCBs repository on GitHub, at the commit this page was made from: the board is Full555Timer/Full555Timer.kicad_pcb and its schematic Full555Timer/Full555Timer.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Full555Timer 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).

More from a10001110101/PCBs

1
  • 2 layers41.9 × 29 mm555Timer, the printed circuit board in 3D

    555Timer

    a10001110101/PCBs

    Various gerbers and other files for PCB design

    11 partsMIT

Similar boards

  • 2 layers159.5 × 99.8 mmM68kcomp1, the printed circuit board in 3D

    M68kcomp1

    jtsiomb/m68kcomputer

    Homebrew Motorola 68010 computer

    55 parts32CC-BY-SA-4.0
  • 2 layersSap be, the printed circuit board in 3D

    Sap be

    kyllikki/eda-designs

    EDA designs

    148 parts32MIT
  • 2 layers101.6 × 78.7 mmClock module, the printed circuit board in 3D

    Clock module

    dbuchwald/6502

    DB6502: 65C02 based computer inspired by BE6502

    46 parts177MIT
  • 2 layers142 × 60 mmCLK, the printed circuit board in 3D

    CLK

    rraider/Seminarkurs2021

    Entwicklung eines turingvollständigen, primitiven Microcontroller in der Software Digital

    44 parts7MIT
  • 4 layers130 × 64.3 mmTspico v2.5, the printed circuit board in 3D

    Tspico v2.5

    timex-sinclair-projects/tspico-hardware

    Status 2026-10-19: prototype 3 (v3.0-proto3, changes below). Proto1 (v3.0-proto1) was built and brought up; proto2 added its fixes (below).

    83 partsCERN-OHL-S-2.0
  • 2 layers237.5 × 102.9 mmInstruction, the printed circuit board in 3D

    Instruction

    jes/scamp-cpu

    A homebrew 16-bit CPU with a homebrew Unix-like-ish operating system.

    112 parts301Unlicense