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4 layers60.5 × 56.4 mmCLOCK, the printed circuit board in 3D

A DIY 8-bit computer built mostly with discrete logic chips

Size
60.5 × 56.4 mm
Copper layers
4
Thickness
4.69 mm
Parts
31
Nets
52
Pads
183
Tracks, vias
357, 68
Pours
2
Routed
Yes
KiCad
KiCad 6 (file 20211014)
Created
20 Apr 2021
Updated
9 Nov 2022

Overview

CLOCK is an open-source printed circuit board by Trilobyte-CPU, from the Trilobyte-CPU/8-bit-computer repository on GitHub. It is a 4-layer board of 60.5 × 56.4 mm with 31 parts on 52 nets, routed with 357 tracks and 68 vias.

It is built around the 74HC00D, 74HC08D and CD4060. Its parts include 8 ICs, 7 resistors, 4 diodes, 4 connectors and 3 capacitors. It belongs with the lEDs and displays boards of this library.

Main components

3

Parts

31
QtyValueFootprintReferences
7R_Small_USResistor_SMD:R_0805_2012MetricR1, R2, R3, R4, R5, R6, R7
4LEDLED_SMD:LED_0805_2012MetricD1, D2, D3, D4
3CCapacitor_SMD:C_0805_2012MetricC1, C2, C3
3SW_PushButton_Switch_THT:SW_PUSH_6mmSW1, SW2, SW3
274HC00Package_SO:SOIC-14_3.9x8.7mm_P1.27mmU2, U3
2Conn_01x02Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJ2, J3
14027Package_SO:SOIC-16_3.9x9.9mm_P1.27mmU4
14075Package_SO:SOIC-14_3.9x8.7mm_P1.27mmU7
174HC08Package_SO:SOIC-14_3.9x8.7mm_P1.27mmU1
17HCS08Package_SO:SOIC-14_3.9x8.7mm_P1.27mmU8
1CD4060Package_SO:SOIC-16W_5.3x10.2mm_P1.27mmU6
1Conn_01x06Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_VerticalJ1
1Conn_02x11_Odd_EvenConnector_PinHeader_2.54mm:PinHeader_2x11_P2.54mm_VerticalJ4
1Crystal_GND24LIBRARY-8-bit-computer:Crystal_DIP_4_14Y1
1DebouncedButtonLIBRARY-8-bit-computer:COMP-DebounceButton-ComponentU4

The 30 most common of 31 parts.

Questions

How big is the CLOCK PCB?

It measures 60.5 × 56.4 mm and has 4 copper layers, 4.69 mm thick.

What parts does the CLOCK use?

31 parts, built around the 74HC00D, 74HC08D and CD4060. 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 KiCad files?

From the Trilobyte-CPU/8-bit-computer repository on GitHub, at the commit this page was made from: the board is PCBs/999-QUEUED-TO-PRINT/CLOCK/CLOCK.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the CLOCK design in my own project?

Its repository states no licence, so its author keeps all rights: ask Trilobyte-CPU before reusing the design.

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