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MCL68

MicroCoreLabs·Projects·MCL68+/PCB/MCL68.kicad_pcb

MCL68 PCB layout, top view — open source NXP board by MicroCoreLabs
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About the MCL68 PCB

MCL68 is an open source NXP PCB design by MicroCoreLabs, published on GitHub. It is a 4-layer board measuring 31.6 × 84.1 mm, with 13 components from 6 distinct parts.

Its main chip is the Teensy4.1, from the NXP family. Other key parts include the 68000D, 74HCT574, 74LS257 and 74HCT541. By type, the board carries 12 ICs and 1 capacitor.

It belongs with the retro computing designs in this gallery.

From the project

Ted Fried's MicroCore Labs Projects - FPGA CPU cores and emulators for the 8088, 8086, 8051, 6502, 68000, Z80, Risc-V, and also Typewriter and EPROM Emulator projects. MCL51, MCL64, MCL65, MCL65+, MCL68, MCL86, MCL86+, MCL86jr, MCLR5, MCLZ8, MCL6809, XTMax, MCL8080+

My blog which has some details on these projects: www.MicroCoreLabs.Wordpress.com

My YouTube Channel with some videos of the stuff in action: www.youtube.com/channel/UC9B3TaEUon-araO2j7tp9jg/videos

MCL6809 - Motorola 6809E emulator which runs on a Teensy 4.1 and can be used as a drop-in replacment MCLZ8 - Zilog Z80 emulator which runs on a Teensy 4.1 and can be used as a drop-in replacment MCL86+ - Intel 8088 emulator which runs on a Teensy 4.1 and can be used as a drop-in replacment MCL86jr - IBMPCjr Accelerator which boosts performance to IBM PC/AT speed MCL65+ - MOS 6502 emulator which…

Main components on the MCL68

68000D74HCT57474LS25774HCT541Teensy4.1

MCL68 bill of materials (BOM)

13 components, 6 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
68000D
U1
5
74HCT574
U2, U6, U7, U9, U10
2
74LS257
U3, U8
3
74HCT541
U4, U11, U12
1
Teensy4.1
U5
1
10 uF
C1

MCL68 design files

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

MCL68: common questions

What microcontroller does the MCL68 use?

The MCL68 is built around the Teensy4.1, from the NXP family.

How big is the MCL68 PCB?

The MCL68 measures 31.6 × 84.1 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the MCL68?

13 components, from 6 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 MCL68 design files?

From the MicroCoreLabs/Projects 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 MCL68 design in my own project?

The repository has no license, so all rights stay with MicroCoreLabs. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the MCL68 without the hardware?

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

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