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Backplane V1.1

attraktorhh·aZ80_Computer·Hardware/aZ80_Backplane/Backplane_V1.1.kicad_pcb

Backplane V1.1 PCB layout, top view — open source board by attraktorhh

About the Backplane V1.1 PCB

Backplane V1.1 is an open source PCB design by attraktorhh, published on GitHub under the MIT license. It is a 2-layer board measuring 150 × 120 mm, with 29 components from 16 distinct parts.

By type, the board carries 8 capacitors, 5 resistors, 4 connectors, 2 jumpers, 2 diodes and 1 switch.

From the project

Die Bus-Platine bildet das Rückgrat unseres Computers. Sie verbindet die einzelnen Karten des aZ80 miteinander.

Die Bus-Platine bildet das Rückgrat unseres Computers. Sie verbindet die einzelnen Karten des aZ80 miteinander.

Die sieben Slots sind alle gleich belegt und leiten den Adress- und Datenbus sowie die Kontrollsignale und die Versorgungsspannung weiter an die verschiedenen Karten.

Die LED D2 zeigt an, dass eine Versorgungsspannung anliegt.

Der Taster SW1 erlaubt das Zurücksetzen und Neustarten des Computers, der sogenannte RESET. Dies ist hilfreich, wenn der aZ80 mal nicht mehr reagieren sollte.

Backplane V1.1, from the project README
From the project README

Backplane V1.1 bill of materials (BOM)

29 components, 16 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
USB Seriell
J1
1
C22750565
DC +5V
J2
1
+5V Hook
J3
1
GND Hook
J4
1
RTS -> USR1
JP1
1
5V USB
JP2
1
C221872
Reset
SW1
7
Z80 Bus
Slot 1, Slot 2, Slot 3, Slot 4, Slot 5, Slot 6, Slot 7
1
SS14
1N4001
D1
1
Power
D2
1
10UF
100uF
C1
7
100nF
C2, C3, C4, C5, C6, C7, C8
1
10K
2k2
R1
1
22K
2k2
R2
2
2k2
R3, R5
1
330
R4

Backplane V1.1 design files

The KiCad project lives in the attraktorhh/aZ80_Computer repository on GitHub; these links point at the commit this page was built from.

Backplane V1.1: common questions

How big is the Backplane V1.1 PCB?

The Backplane V1.1 measures 150 × 120 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Backplane V1.1?

29 components, from 16 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 Backplane V1.1 design files?

From the attraktorhh/aZ80_Computer 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 Backplane V1.1 design in my own project?

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

More boards in aZ80_Computer