Renzo SBC68K

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1 total messages Started by Renzo Mercanzin 260080/IL Thu, 17 Dec 1992 09:37

#51

Author: Renzo Mercanzin 260080/IL
Date: Thu, 17 Dec 1992 09:37

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 Hi all,

In one night I received a lot of e-mail on my 68k SBC.

This is the last day that I stay at Univeristy, and I will be back
after the Xmas holidays. 

I PROMISE TO YOU (all) that during the holidays I will draw the plan of
the project with a cad, and then I will post the picture file with the
schematics, component list etc. 
The components on board are:
- CPU 68000 or 010 10MHz
- Duart MC68681
- two Eproms 27c128 (faster than 200ns better if 120ns)
- two rams 6264 (better than 120ns)
- Max232 (maxim or ICL232 from Intersil, or TSC232 from teledyne etc)
- 74xx04
- 74xx00
- 74xx08
- 74xx32
- 74xx138
- One cristal 10 MHz and one 3.6864MHz
- some (many) 100 nf capacitors
- 7805 (5V voltage regulator)
- Some 3Kohms resistors
                    

 Many of these components could be found in used boards and so are very cheap.
I spent less than 20$ using some recycled components.

- About software, I used a monitor with an in-line assembler and many system
routines.

 Please wait till 1993!!

				Good Xmas and happy new Year!!


					Renzo

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