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Zx2 cpu

krzys9876·ZX_Spectrum_diy·Kicad5/zx2_cpu/zx2_cpu.kicad_pcb

Zx2 cpu PCB layout, top view — open source board by krzys9876
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About the Zx2 cpu PCB

Zx2 cpu is an open source PCB design by krzys9876, published on GitHub under the MIT license. It is a 2-layer board measuring 100.3 × 71.1 mm, with 18 components from 6 distinct parts.

Other key parts include the Z80CPU and 74HC245. By type, the board carries 6 capacitors, 6 resistors, 5 ICs and 1 connector.

It belongs with the test & measurement designs in this gallery.

From the project

KiCad projects (schematics and boards) for a full-diy ZX Spectrum replica

All boards that I designed, etched and soldered to create a full-diy replica of ZX Spectrum. Kicad4 (just a keyboard) and Kicad5

This is NOT a cycle-perfect replica so do not expect to launch fancy demos on it. The project started as a breadboard simplest possible computer using Z80. Quite quickly I started thinking of making a replica of ZX Spectrum - the first computer I ever used as a kid. All I wanted was to:

Main components on the Zx2 cpu

Z80CPU74HC245

Zx2 cpu bill of materials (BOM)

18 components, 6 distinct parts.

QtyPartRefs
1
Z80CPU
U1
4
74HC245
U2, U3, U4, U5
1
Conn_01x36
J1
1
CP
C1
5
100n
C2, C3, C4, C5, C6
6
R
R1, R2, R3, R4, R5, R6

Zx2 cpu design files

The KiCad project lives in the krzys9876/ZX_Spectrum_diy repository on GitHub; these links point at the commit this page was built from.

Zx2 cpu: common questions

How big is the Zx2 cpu PCB?

The Zx2 cpu measures 100.3 × 71.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Zx2 cpu?

18 components, from 6 distinct parts. The full bill of materials is listed on this page.

Where can I download the Zx2 cpu design files?

From the krzys9876/ZX_Spectrum_diy repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Zx2 cpu design in my own project?

Yes, under the terms of its MIT license, which krzys9876 chose for the repository.

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