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Minimal-64x4-Home-Computer

slu4coder·Minimal-64x4-Home-Computer·Revision 1.1/KiCAD/8-Bit CPU 32k.kicad_pcb

Minimal-64x4-Home-Computer PCB layout, top view — open source board by slu4coder

About the Minimal-64x4-Home-Computer PCB

Minimal-64x4-Home-Computer is an open source PCB design by slu4coder, published on GitHub. It is a 2-layer board measuring 245.1 × 160 mm, with 134 components from 40 distinct parts.

Other key parts include the 74HC02, 74HC32, 74HC00, 74HC377 and 74HCT132. By type, the board carries 67 ICs, 33 capacitors, 27 resistors, 5 connectors, 1 crystal and 1 switch.

It belongs with the retro computing designs in this gallery.

From the project

My DIY TTL home computer with VGA and PS/2 and 4x the processing power of a Commodore C64 or Apple II.

The folder 'KiCAD' contains KiCAD 6 schematics. The folder 'KiCAD8' contains the same schematics with minor cosmetic updates, converted to KiCAD8. For the bill of materials (BOM) please refer to chapter 'Hardware' of the 'Minimal 64x4 Reference Manual'. Follow the link in the root readme.md of this repo.

The folder 'Support' contains the cross-platform assembler und the emulator (Win). The folder 'Programs' contains native Minimal 64x4 code.

Main components on the Minimal-64x4-Home-Computer

74HC0274HC3274HC0074HC37774HCT13274HC16174HC16574HC19374HC595SST39SF010..040 HSB74HC157SST39SF010..040 MSBSST39SF010..040 LSBSST39SF040 512KB SSDAS6C1008 SRAM74HC166AS6C62256 or AS6C1008 VRAM74HC59074HC57474HC24574HC8674HC28374HC0874HC4002

Minimal-64x4-Home-Computer bill of materials (BOM)

134 components, 40 distinct parts.

QtyPartRefs
2
74HC02
U1, U6
6
74HC32
U2, U7, U33, U58, U60, U62
3
74HC00
U3, U4, U8
4
74HC377
U5, U10, U20, U45
1
74HCT132
U9
14
74HC161
U11, U15, U19, U24, U26, U27, U28, U29 +6
2
74HC165
U12, U13
2
74HC193
U14, U18
2
74HC595
U16, U17
1
SST39SF010..040 HSB
U21
4
74HC157
U22, U43, U47, U51
1
SST39SF010..040 MSB
U23
1
SST39SF010..040 LSB
U25
1
SST39SF040 512KB SSD
U31
1
AS6C1008 SRAM
U34
1
74HC166
U35
1
AS6C62256 or AS6C1008 VRAM
U36
2
74HC590
U37, U39
3
74HC574
U38, U40, U41
8
74HC245
U42, U44, U46, U50, U56, U64, U65, U66
Show 20 more
QtyPartRefs
2
74HC86
U54, U57
2
74HC283
U55, U59
2
74HC08
U61, U63
1
74HC4002
U67
1
16MHz
X1
1
UART
J1
1
PS/2
J2
1
EXPANSION PORT
J3
1
VGA
J4
1
POWER
J5
1
RESET
SW1
29
100nF
C1, C2, C3, C4, C5, C6, C7, C8 +21
4
22pF
C30, C31, C32, C33
4
4.7k
R1, R3, R4, R5
16
470
R2, R9, R10, R11, R12, R13, R14, R15 +8
2
150
R6, R26
2
68
R7, R8
1
200
R24
1
100
R25
1
0
R27

Minimal-64x4-Home-Computer design files

The KiCad project lives in the slu4coder/Minimal-64x4-Home-Computer repository on GitHub; these links point at the commit this page was built from.

Minimal-64x4-Home-Computer: common questions

How big is the Minimal-64x4-Home-Computer PCB?

The Minimal-64x4-Home-Computer measures 245.1 × 160 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Minimal-64x4-Home-Computer?

134 components, from 40 distinct parts. The full bill of materials is listed on this page.

Where can I download the Minimal-64x4-Home-Computer design files?

From the slu4coder/Minimal-64x4-Home-Computer repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Minimal-64x4-Home-Computer design in my own project?

The repository has no license, so all rights stay with slu4coder. Use it as a reference, and ask the author before reusing the design.

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