> -----Original Message-----
> From: Jane Ifurung [SMTP:jane_ifurung@YAHOO.COM]
> Sent: Friday, January 05, 2001 8:16 AM
> To:   PICLIST@MITVMA.MIT.EDU
> Subject:      Re: [ot]:chip that generates delay
>
> Yes, thank you. I tried a series of 74hc buffers but
> the problem is the output voltage is greater than the
> supply voltage. Why? Can you give me some reasons?
>
How exactly are you measuring the output voltage, with a multimeter or a
scope?  It's possible that you have some ringing which is causing the output
to overshoot the supply rails, but the DC level of the output should
certainly never be greater than the supply voltage.

Mike

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