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Control

Velko·8-bit-CPU·hardware/pcb/control/control.kicad_pcb

Control PCB layout, top view — open source board by Velko
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About the Control PCB

Control is an open source PCB design by Velko, published on GitHub under the MIT license. It is a 2-layer board measuring 104.7 × 122.1 mm, with 64 components from 29 distinct parts.

Other key parts include the 74HC161, 74HC595, 74HC597, SST39SF010 and 74HC138. By type, the board carries 16 capacitors, 15 ICs, 15 resistors, 10 diodes and 8 connectors.

It belongs with the retro computing designs in this gallery.

From the project

Homebrew 8-bit CPU

After watching [series of videos][eater-net-8bit] by Ben Eater building an 8-bit computer from scratch, I was hooked. Various thoughts for improvements and experiments was running through my mind. But first I have to build one. Improvements will come later. Whom am I kidding? I'll never be able to build an exact replica, I'll incorporate improvements as I go.

Control, from the project README
From the project README

Main components on the Control

74HC16174HC59574HC597SST39SF01074HC13874HC04

Control bill of materials (BOM)

64 components, 29 distinct parts.

QtyPartRefs
1
74HC161
U1
3
74HC595
U2, U8, U13
2
74HC597
U3, U5
3
SST39SF010
U4, U9, U14
5
74HC138
U6, U7, U10, U11, U12
1
74HC04
U15
1
OUT
J1
1
LOAD
J2
1
GPCTRL
J3
1
SPI
J4
1
POWER
J5
1
FLAGS
J6
1
Instruction
J7
1
SYNC
J8
1
T0
D1
1
T1
D2
1
T2
D3
1
T3
D4
1
T4
D5
1
T5
D6
Show 9 more
QtyPartRefs
1
T6
D7
1
T7
D8
1
CR
D9
1
SPI
D10
15
100nF
C1, C2, C3, C4, C5, C6, C7, C8 +7
1
10uF
C16
10
330
R1, R2, R3, R4, R5, R6, R7, R8 +2
1
100K
R11
4
10K
R12, R13, R14, R15

Control design files

The KiCad project lives in the Velko/8-bit-CPU repository on GitHub; these links point at the commit this page was built from.

Control: common questions

How big is the Control PCB?

The Control measures 104.7 × 122.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Control?

64 components, from 29 distinct parts. The full bill of materials is listed on this page.

Where can I download the Control design files?

From the Velko/8-bit-CPU repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Control design in my own project?

Yes, under the terms of its MIT license, which Velko chose for the repository.

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