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RetroZ SBC for S80

formix·RetroZ·Projects/RetroZ-SBC/RetroZ-SBC.kicad_pcb

RetroZ SBC for S80 PCB layout, top view — open source board by formix
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About the RetroZ SBC for S80 PCB

RetroZ SBC for S80 is an open source PCB design by formix, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 127 × 73.7 mm, with 48 components from 31 distinct parts.

Other key parts include the PO_RESET, AT28C256B-15PU, AS6C62256-55PCN, 74LS32 and 74HCT04. By type, the board carries 14 resistors, 12 capacitors, 10 ICs, 6 connectors, 3 diodes and 2 switches.

It belongs with the retro computing designs in this gallery.

From the project

An S80 Single Board Retro Computer

This board is developped using the S80 physical specifications. The specifications are not currently available online but I plan to fix that in a future revision.

You can find the board schematic as a PDF here.

You can download the BOM here. It is an Open Document Worksheet file and you should be able to open it with Open/Libre Office or MS Excel. If you have issue, contact me.

RetroZ SBC for S80, from the project README
From the project README

Main components on the RetroZ SBC for S80

PO_RESETAT28C256B-15PUAS6C62256-55PCN74LS3274HCT04Z80CPU74LS138Z84C40FT230XS-U74LS92

RetroZ SBC for S80 bill of materials (BOM)

48 components, 31 distinct parts.

QtyPartRefs
1
PO_RESET
IC1
1
AT28C256B-15PU
IC2
1
AS6C62256-55PCN
IC3
1
74LS32
U1
1
74HCT04
U2
1
Z80CPU
U3
1
74LS138
U4
1
Z84C40
U5
1
FT230XS-U
U6
1
74LS92
U7
1
7.3728Mhz
Y1
1
02x20
J1
1
User Port A
J2
1
User Port B
J3
1
IEI SELECT
J4
1
USB_OTG
J5
1
CLOCK DIV.
J6
1
RESET
SW1
1
POWER SWITCH
SW2
1
POWER
D1
Show 11 more
QtyPartRefs
1
RX
D2
1
TX
D3
2
20pF
C1, C2
2
47pF
C3, C4
8
0.1uF
C5, C6, C7, C8, C9, C10, C11, C12
1
1M
R1
1
1k
R2
7
10K
R3, R4, R5, R6, R12, R13, R14
1
220
R7
2
27
R8, R9
2
330
R10, R11

RetroZ SBC for S80 design files

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

RetroZ SBC for S80: common questions

How big is the RetroZ SBC for S80 PCB?

The RetroZ SBC for S80 measures 127 × 73.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the RetroZ SBC for S80?

48 components, from 31 distinct parts. The full bill of materials is listed on this page.

Where can I download the RetroZ SBC for S80 design files?

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

Can I use the RetroZ SBC for S80 design in my own project?

Yes, under the terms of its Apache-2.0 license, which formix chose for the repository.

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