A high TTL output never goes up to 5V, due to its inherent characteristics.

If switching speed is not critical for your application, you can simply use
a simple resistor - transistor logic to get a nice 5V output.

----- Original Message -----
From: "Lim KK" <mark_limkk@HOTMAIL.COM>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Tuesday, April 29, 2003 9:04 PM
Subject: [EE]: output from schmidt trigger less than 5V


> Hi, I've got a microcontroller sending a TTL logic to a 74L14 schmidt
> trigger. I found out that the inverted logic high is somewhere 4.5v to
4.6v.
> Is there anyway I can make it output a perfect 5v?
>
> thanks
> mark
>
>
>
>
>
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