Tindie
OMEN Alpha Kit
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As-simple-as-possible computer with the 8085 CPU
I write a book about old computers. Oh, sorry: I mean "vintage computers" from the 80's. My primary goal is to show how one can build an 8bit computer from scratch. It means: how to set up a CPU, ...
Read More…I write a book about old computers. Oh, sorry: I mean "vintage computers" from the 80's. My primary goal is to show how one can build an 8bit computer from scratch.
It means: how to set up a CPU, how to connect memories, how to connect peripheral chips, and why to connect...
This computer is a "demo construction": A computer, based on 8085 CPU, with 32 kB of (EEP)ROM and 32 kB of RAM, serial connection and parallel ports. All should be as simple as possible. And here is a result.
See also: Details on Hackster.IO, details on Hackaday.IO, project sources on GitHub
You can buy a kit as well as the assembled and tested machine (+15 USD).
You can get your own PCB from the PCBWay service.
The kit contains:
- CPU 8085 (M5L8085A or equivalent type)
- RAM 32kx8 (62256 or equivalent)
- Optional: EEPROM 32kx8 (AT28C256 or equivalent, programmed or empty - select the proper variant, or NO EEPROM)
- UART (MC68B50 or equivalent)
- PPI (8255A or equivalent)
- Decoder 74138 (HC or HCT)
- Driver 74245 (HC or HCT)
- Latch 74573 (HC or HCT)
- Gate 7400 (HC or HCT)
- Crystal 3.6864 MHz
- Resonant capacitor 22 pF (22 - 47 is suitable)
- Push button
- Diode (1N4004 or similar)
- A printed circuit board (with soldering mask)
- Assembly instructions
The kit DOES NOT contain:
- Resistors (1x 10k, 1x 330R)
- Electrolytic capacitor 10M
- Filter capacitor (8x 100n)
- Pin Headers
- IC sockets (2x40W, 2x28W, 1x24W, 2x20N, 1x16N, 1x14N)
Power supply (5V/1A) is not included.
Soldering equipment and basic tools (knife, multimeter etc.) are necessary to assemble the kit!
An oscilloscope and/or the logic analyzer (logic probe) is not necessary but highly recommended to find problems when occurs.
Shipping to Portugal starts at $15.00
Ships from Czechia
Out of Stock
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