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ROM Emulator

MicroCoreLabs·Projects·EPROM_Emulator/ROM_Emulator_PCB_CE_n/ROM_Emulator.kicad_pcb

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

ROM Emulator is an open source NXP PCB design by MicroCoreLabs, published on GitHub. It is a 2-layer board measuring 21.5 × 37.1 mm, with 5 components from 3 distinct parts.

Its main chip is the Teensy4.0, from the NXP family. Other key parts include the 27C512 and 74LS245.

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 ROM Emulator

27C51274LS245Teensy4.0

ROM Emulator bill of materials (BOM)

5 components, 3 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
27C512
U1
3
74LS245
U2, U4, U5
1
Teensy4.0
U3

ROM Emulator design files

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

ROM Emulator: common questions

What microcontroller does the ROM Emulator use?

The ROM Emulator is built around the Teensy4.0, from the NXP family.

How big is the ROM Emulator PCB?

The ROM Emulator measures 21.5 × 37.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ROM Emulator?

5 components, from 3 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 ROM Emulator design files?

From the MicroCoreLabs/Projects repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the ROM Emulator 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 ROM Emulator 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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