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Zx sizif-128

UzixLS·zx-sizif-128·pcb/rev.A/sizif128.kicad_pcb

Zx sizif-128 PCB layout, top view — open source board by UzixLS
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About the Zx sizif-128 PCB

Zx sizif-128 is an open source PCB design by UzixLS, published on GitHub under the MIT license. It is a 2-layer board measuring 140 × 85 mm, with 107 components from 45 distinct parts.

Other key parts include the 27C512, YM2149, Z84C0008PEC, EPM7128SLC84-15N and 628128. By type, the board carries 54 resistors, 23 capacitors, 10 diodes, 7 connectors, 6 ICs and 3 transistors.

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

From the project

Easy-to-build minimalistic ZX Spectrum clone

Easy-to-build minimalistic ZX Spectrum clone.

Specifications: - CPLD EPM7128SLC84 (128 macrocells) - Z80 3.5 MHz - 128K RAM - AY-3-8910 (YM2149) mono sound - Pentagon timings - PAL encoder in CPLD (CRT TVs preferred) - Intended to build on 9x15 prototyping board, but may be built on manufactured PCB

To modify and compile CPLD firmware you need Quartus 13.0sp1. To modify schematic and pcb you need Kicad 6 or newer.

Zx sizif-128, from the project README
From the project README

Main components on the Zx sizif-128

27C512YM2149Z84C0008PECEPM7128SLC84-15N62812874HCU04

Zx sizif-128 bill of materials (BOM)

107 components, 45 distinct parts.

QtyPartRefs
1
27C512
U1
1
YM2149
U2
1
Z84C0008PEC
U3
1
EPM7128SLC84-15N
U4
1
628128
U5
1
74HCU04
U6
3
BC547B
Q1, Q2, Q3
1
14.318MHz
Y1
1
16MHz
Y2
2
RCJ-013
J1, J2
1
DC-005
J3
1
PJ307
J4
1
Conn_01x08
J5
1
Conn_01x05
J6
1
Conn_02x05
J7
1
Jumper_3_Bridged12
JP1
1
SW_Push
SW1
9
BAT85
D1, D2, D4, D5, D6, D7, D8, D9 +1
1
1N4148
D3
1
10u
C1
Show 25 more
QtyPartRefs
13
100n
C2, C3, C4, C5, C8, C9, C10, C11 +5
1
470u
C6
1
10u
C7
1
10n
C16
1
470p
C17
2
33p
C18, C20
2
47p
C19, C21
1
100p
C22
28
1k
R1, R2, R3, R5, R8, R9, R10, R11 +20
2
2.2k
R4, R49
2
4.7k
R6, R40
6
10k
R7, R31, R36, R37, R38, R53
1
47k
R26
1
500k
R32
2
1M
R33, R34
1
470
R35
1
20k
R39
1
2.4k
R41
1
15k
R42
2
8.2k
R45, R50
1
12k
R46
1
68
R47
2
1.2k
R48, R51
1
82
R52
1
10k
RN1

Zx sizif-128 design files

The KiCad project lives in the UzixLS/zx-sizif-128 repository on GitHub; these links point at the commit this page was built from.

Zx sizif-128: common questions

How big is the Zx sizif-128 PCB?

The Zx sizif-128 measures 140 × 85 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Zx sizif-128?

107 components, from 45 distinct parts. The full bill of materials is listed on this page.

Where can I download the Zx sizif-128 design files?

From the UzixLS/zx-sizif-128 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Zx sizif-128 design in my own project?

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

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