Slawomir Krysztowiak

POLAND • + Follow

VIRAL DNA

CANADA
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- 0
Lucio Fernandes da Fonseca Junior

BRAZIL
- 0
- 0
Armando Barrios

UNITED STATES OF AMERICA
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Engineer

GREECE
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10

Tools, APP Software Used etc.

Cadsoft Eagle

Description

4KB cartridge for Atari 2600

I did this project for the game I'm working on - "Berta And Butterflies".

There is a lot of designs of cartridge PCBs for Atari 2600. They are very good, reliable and battle tested. They usually need 74LS04 integrated circuit to work. It's an inverter with 6 gates and only one of these gates is used.

In my project I replaced this IC with a inverter made of NPN transistor, two resistors and one capacitor. Total cost of these elements is half the price of 74LS04 IC. If you make one cartridge for your own needs, it doesn't make a difference, but if you make 50 of them, the difference is significant...

You can find all the details here: https://github.com/vandalton/BertaAndButterflies/tree/main/hardware/atari2600-simplest-cart

Parts list:

IC2 - 2732 EPROM

T1 - BC337 - NPN transistor (I also tested BC548B - it works)

R1 - 3,3 kOhm

R2 - 1 kOhm

C1 - 100nF

C2 - 1nF

Schematic and Layout

Atari 2600 Simplest Cart

https://github.com/vandalton/BertaAndButterflies/tree/main/hardware/atari2600-simplest-cart

Download Gerbers Download BOM(Bill of materials)

Jun 04,2024

1,092 views

4KB cartridge for Atari 2600

A cartridge design for Atari 2600. It doesn't need 74LS04 inverter IC and makes use of transistor based inverter.

1092

Published: Jun 04,2024

Standard PCB

Download Gerber file 17

BOM(Bill of materials)

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File Last Updated: 2024/06/04 (GMT+8)

File update record

2024-06-0409:03:37

Parts List (BOM) is updated.

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