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Pcb z80

gloveboxes·pcb-z80·hardware/kicad/z80_romless_sbc.kicad_pcb

Pcb z80 layout, top view — open source RP2040/RP2350 board by gloveboxes
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About the Pcb z80

Pcb z80 is an open source RP2040/RP2350 PCB design by gloveboxes, published on GitHub under the MIT license. It is a 4-layer board measuring 160 × 135 mm, with 51 components from 26 distinct parts.

Its main chip is the Raspberry Pi Pico 2 W, from the RP2040/RP2350 family. Other key parts include the Z84C0020PEC, AS6C1008-55PCN, ATF22V10B/C, SN74AHCT244N and SN74LVC244AN. By type, the board carries 20 resistors, 12 capacitors, 8 ICs, 7 test points, 1 module and 1 transistor.

It belongs with the retro computing designs in this gallery.

From the project

pcb-z80 is a container-only, repeatable build of the four-layer Z80 ROMless SBC PCB engineering design. It regenerates the KiCad schematic, places the four-layer board, routes a fresh Specctra session, imports and fills the board, runs strict ERC/DRC and net-parity checks, measur

pcb-z80 is a container-only, repeatable build of the four-layer Z80 ROMless SBC PCB engineering design. It regenerates the KiCad schematic, places the four-layer board, routes a fresh Specctra session, imports and fills the board, runs strict ERC/DRC and net-parity checks, measures timing-sensitive buses, and exports a fabrication package.

The design is derived from the deterministic generators in gloveboxes/Z80ROMlessSBC at the revision recorded in SOURCE.md. The board uses F.Cu, In2.Cu, and B.Cu for signals while In1.Cu remains a continuous GND reference plane. The self-contained image…

Main components on the Pcb z80

Z84C0020PECAS6C1008-55PCNATF22V10B/CSN74AHCT244NSN74LVC244ANMCP23S17-E/SPSN74AHCT245N Pico-to-busSN74LVC245AN bus-to-PicoRaspberry Pi Pico 2 W

Pcb z80 bill of materials (BOM)

51 components, 26 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
Z84C0020PEC
U1
1
AS6C1008-55PCN
U2
1
ATF22V10B/C
U3
1
SN74AHCT244N
U4
1
SN74LVC244AN
U7
1
MCP23S17-E/SP
U8
1
SN74AHCT245N Pico-to-bus
U9
1
SN74LVC245AN bus-to-Pico
U10
1
Raspberry Pi Pico 2 W
A1
1
2N3904 MCP RESET
Q1
1
REGULATED 5V INPUT
J1
1
M1# TEST
TP1
1
CLK TEST
TP2
1
RESET# TEST
TP3
1
WAIT# TEST
TP4
1
BUSREQ# TEST
TP5
1
BUSACK# TEST
TP6
1
GND TEST
TP7
1
1N5819
D1
8
100n
C1, C2, C3, C4, C5, C6, C7, C8
Show 6 more
QtyPartRefs
3
22u
C9, C10, C11
1
100u
C12
9
10k
R17, R18, R19, R20, R21, R22, R27, R28 +1
5
4.7k
R23, R24, R25, R26, R29
1
47k
R30
5
8x10k bussed
RN1, RN2, RN3, RN4, RN5

Pcb z80 design files

The KiCad project lives in the gloveboxes/pcb-z80 repository on GitHub; these links point at the commit this page was built from.

Pcb z80: common questions

What microcontroller does the Pcb z80 use?

The Pcb z80 is built around the Raspberry Pi Pico 2 W, from the RP2040/RP2350 family.

How big is the Pcb z80?

The Pcb z80 measures 160 × 135 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Pcb z80?

51 components, from 26 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Pcb z80 design files?

From the gloveboxes/pcb-z80 repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Pcb z80 design in my own project?

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

Can I test firmware for the Pcb z80 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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