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Mackerel-10-dram

crmaykish·mackerel-68k·hardware/mack-10-proto/mackerel-10-dram/mackerel-10-dram.kicad_pcb

Mackerel-10-dram PCB layout, top view — open source board by crmaykish
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About the Mackerel-10-dram PCB

Mackerel-10-dram is an open source PCB design by crmaykish, published on GitHub under the MIT license. It is a 4-layer board measuring 150 × 80 mm, with 41 components from 13 distinct parts.

Other key parts include the MC68030RC, EPM7128 and SST39SF040. By type, the board carries 21 resistors, 10 capacitors, 6 connectors, 3 ICs and 1 diode.

It belongs with the retro computing designs in this gallery.

From the project

A series of single-board Motorola 68k computers with support for modern Linux

Mackerel 68k is a family of homebrew single-board computers built around the Motorola 68000 line of processors plus a from-scratch effort to run mainline Linux on each one.

The project works its way up the 68k family one chip at a time, from the 68008 to the 68040. Each new board adds capability: more memory, faster CPUs, an FPU, an MMU, and richer peripherals. But the throughline is software - every Mackerel runs the latest mainline Linux kernel, from a tiny NOMMU uClinux shell on the 68008 up to a full MMU + hardware-FPU install on the 68030.

Mackerel-10-dram, from the project README
From the project README

Main components on the Mackerel-10-dram

MC68030RCEPM7128SST39SF040

Mackerel-10-dram bill of materials (BOM)

41 components, 13 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MC68030RC
~
U1
1
EPM7128
~
U2
1
SST39SF040
~
U3
2
CONN_01X02
Conn_02x20_Odd_Even
J1, J2
1
CONN_02X05_ODD_EVEN
Conn_02x05_Odd_Even
J3
2
CONN_01X06
Conn_01x30
J4, J5
1
CONN_02X10_ODD_EVEN
Conn_01x10
J6
1
LED
D1
2
0.1UF
1000uF
C1, C2
8
0.1UF
0.1uF
C3, C4, C5, C6, C7, C8, C9, C10
5
4K7
R
R1, R2, R3, R4, R5
14
4K7
22
R6, R7, R8, R9, R10, R11, R12, R13 +6
2
22
R17, R18

Mackerel-10-dram design files

The KiCad project lives in the crmaykish/mackerel-68k repository on GitHub; these links point at the commit this page was built from.

Mackerel-10-dram: common questions

How big is the Mackerel-10-dram PCB?

The Mackerel-10-dram measures 150 × 80 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Mackerel-10-dram?

41 components, from 13 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 Mackerel-10-dram design files?

From the crmaykish/mackerel-68k 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 Mackerel-10-dram design in my own project?

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

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