85Views5Replies

Author Options:

Attiny schematics Answered

Recently I've been wondering if I could actually build a cpu, I knew about the attiny and thought that I might try to build it without any chips. (Ambitious I know) I'm pretty experienced at soldering and coding and have been doing both for 17 years so I reckon I can manage it. Does anyone happen to know the whereabouts of any schematics for the attiny 25/45/85? If you do please tell me, it would be a great help.

5 Replies

user
jkwilborn (author)2016-12-09

Check the Wiki here:

https://en.wikipedia.org/wiki/Transistor_count

Just curious so I took a couple of minutes. One engineer estimated the AVR 8 bit processors have around 10,000 transistors. Never found a statement from Atmel.

One of the micro processor engineers stated something like "we don't start with 500,000 transistors and then figure out how to wire them together."

I know it's been a while for this thread, but this Wiki's a good reference.

Good luck... :-)

Select as Best AnswerUndo Best Answer

user
Computothought (author)2015-10-21

Draw a schematic of it first and then see whether you would like to tackle the job. ATmel should be of some help?

Select as Best AnswerUndo Best Answer

user
caitlinsdad (author)2015-10-18

Even the tinyiest attiny has so much stuff crammed inside that chip.

http://letsmakerobots.com/content/creating-microco...

Select as Best AnswerUndo Best Answer

user
MakerBox (author)caitlinsdad2015-10-18

thank you, after reading that I have reconsidered, do you have any sources on building a simple arduino compatible micro controller with discrete logic gates?

Select as Best AnswerUndo Best Answer

user
caitlinsdad (author)MakerBox2015-10-18

https://www.instructables.com/id/How-to-Build-an-8-...

I'm not sure what you're after but maybe getting a computer science or electrical engineering degree would help build an "ancient" computer. A microcontroller is way up the evolution scale from transistors. Good luck in researching and learning about it.

Select as Best AnswerUndo Best Answer