Re: Help with SX64 User Port?

From: Gerrit Heitsch <*gerrit_at_laosinh.s.bawue.de*> Date: Sun, 25 Oct 2015 18:17:17 +0100 Message-ID: <562D0E9D.8080101@laosinh.s.bawue.de> · gerrit_at_laosinh.s.bawue.de

On 10/25/2015 06:05 PM, Leif Bloomquist wrote:
>
> I looked into buffers but was unable to find a through-hole
> *bidirectional* buffer, so I'll stick with this approach unless
> someone has a different solution?

How about a 4066? Yes, it's a switch, but if you just tie the Enable 
signal to +5V it becomes a buffer. If it's fast enough for controlling 
access to the color RAM in the C64, it should be fast enough anything 
I/O-related.

  Gerrit

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