Re: What "Parallel Hz" Really Is

- E
- Eric Smith
  
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posted
17 years ago

Mon, May 15, 2006 5:00 AM

I thought TTL was +5V and 0.

The power supply was +5V, but a TTL high signal was generally around

2.4V to 3V, unless you added a pullup. Minimum Vih was 2.0V.

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