[time-nuts] WWVB remodulator for the Spectracom 8170...

Ed, k1ggi k1ggi at comcast.net
Wed Jun 19 00:43:29 UTC 2013


>Weird.. where does that 3V in my mind come from?
Metal gate cmos.
Ed

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Attila Kinali
Sent: Tuesday, June 18, 2013 18:11 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] WWVB remodulator for the Spectracom 8170...

On Tue, 18 Jun 2013 17:51:29 -0400
paul swed <paulswedb at gmail.com> wrote:

> Thanks Attila Burts looking to separate the rcvr/remodulator.  I am fine.
> Yes indeed I did look up the hc specs. I thought it was a 5v logic
> actually. I knew it was not at all like the 74c series.

That's the HCT which are 5V (the T denotes TTL compatible).

I just checked it. NXP specs the HCMOS family as 2-6V, with 5V typical
(recomended conditions, _not_ absolute maximum ratings).
So it is indeed safe to run them down to 2V.
Weird.. where does that 3V in my mind come from?

			Attila Kinali
-- 
The people on 4chan are like brilliant psychologists
who also happen to be insane and gross.
		-- unknown
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