2 layers177.2 × 103.8 mm
Keyb2
krzys9876/ZX_Spectrum_diy
KiCad projects (schematics and boards) for a full-diy ZX Spectrum replica
59 parts2MIT
2 layers104.8 × 101 mm
Z2 io test02
krzys9876/ZX_Spectrum_diy2KiCad projects (schematics and boards) for a full-diy ZX Spectrum replica
- Size
- 104.8 × 101 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 65
- Nets
- 92
- Pads
- 338
- Tracks, vias
- 1,038, 82
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 3 Oct 2021
- Updated
- 3 Oct 2021
Overview
Z2 io test02 is an open-source printed circuit board by krzys9876, from the krzys9876/ZX_Spectrum_diy repository on GitHub, published under the MIT licence. It is a 2-layer board of 104.8 × 101 mm with 65 parts on 92 nets, routed with 1,038 tracks and 82 vias.
It is built around the 74HC245D, 74HC374 and 74LS32SC, with the 74LVC1G14Z among its other parts. Its parts include 24 resistors, 16 diodes, 8 capacitors, 8 ICs and 7 connectors. It belongs with the retro computing and games boards of this library.
Main components
4
74HC245D
SO-20-300mil-40℃~+125℃ 1 160uA 2V~6V 7.8mA 7.8mA 74HC 8 9ns@4.5V,50pF Bidirectional Tri-State SOIC-20-300mil Buffers, Drivers, Receivers, Transceivers ROHSNexperiaBuffers, Drivers, Receivers, Transceivers74HC374
SOIC-20SOIC-20 New Arrivals ROHSTexas InstrumentsUncategorised
74LS32SC
-- Logic Gates ROHSTexas InstrumentsLogic Gates
74LVC1G14Z
SOT-553-40℃~+125℃ 1 1.2V~3.33V 1.65V~5.5V 200uA 32mA 32mA 6.5ns@5V,50pF 74LVC 750mV~2.35V Power shutdown protection、Noise suppression function Push-pull Schmitt trigger SOT-553 Inverters ROHSDiodes IncorporatedInverters
README
README.mdZX_Spectrum_diy
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:
- launch Knight Lore - the best game ever
- write some Basic programs - to feel the magic of programming again - and I did!
Have questions? Just drop me an email.
Parts
65| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | R | Resistor_SMD:R_0805_2012Metric | R2, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24 +8 |
| 16 | LED | Diode_SMD:D_0805_2012Metric | D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15, D16, D17 |
| 7 | 100n | Capacitor_SMD:C_1206_3216Metric | C1, C3, C5, C6, C7, C8, C9 |
| 2 | 74HC374 | Package_DIP:DIP-20_W7.62mm | U6, U8 |
| 2 | 74LS32 | Package_DIP:DIP-14_W7.62mm | U4, U9 |
| 1 | 10u | Capacitor_SMD:C_1210_3225Metric | C2 |
| 1 | 74HC245 | Package_DIP:DIP-20_W7.62mm | U3 |
| 1 | 74LS154 | Package_DIP:DIP-24_W7.62mm | U1 |
| 1 | 74LVC1G14 | Package_TO_SOT_SMD:SOT-353_SC-70-5 | U7 |
| 1 | CONN | Connector_PinHeader_2.54mm:PinHeader_1x37_P2.54mm_Horizontal | J2 |
| 1 | CONN_OUT | Connector_PinHeader_2.54mm:PinHeader_2x04_P2.54mm_Vertical | J6 |
| 1 | DIP_SW_C | Package_DIP:DIP-16_W7.62mm | SW1 |
| 1 | Fuse | Fuse:Fuse_1812_4532Metric | F1 |
| 1 | KB_SEL | Connector_PinHeader_2.54mm:PinHeader_2x02_P2.54mm_Vertical | J1 |
| 1 | LED_EN | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J7 |
| 1 | PW_SEL | Connector_PinHeader_2.54mm:PinHeader_2x02_P2.54mm_Vertical | J5 |
| 1 | UART_A | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Horizontal | J3 |
| 1 | UART_B | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Horizontal | J4 |
| 1 | Z8440 | Package_DIP:DIP-40_W15.24mm | U5 |
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Questions
How big is the Z2 io test02 PCB?
It measures 104.8 × 101 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Z2 io test02 use?
65 parts, built around the 74HC245D, 74HC374, 74LS32SC and 74LVC1G14Z. 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 Z2 io test02 KiCad files?
From the krzys9876/ZX_Spectrum_diy repository on GitHub, at the commit this page was made from: the board is Kicad5/z2_io/z2_io_test02.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Z2 io test02 design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).