[time-nuts] DS1620 Variants in the Thunderbolt
Mark Spencer
mspencer12345 at yahoo.ca
Sat Sep 25 23:50:53 UTC 2010
Interesting thanks. My new to me Thunderbolt was apparently manufactured in Apr
2004 and appears to have the older higher resolution chip. I've noticed some
of the pictures on various auction sites appear to show a label with a
manufacturing date. I'll be curious to see when some of the sellers start
asking for a premium with units with the older chips (: If I was to buy
another one I wouldn't mind paying a modest premium for one with the older chip.
I've been favourably impressed with the performance of the Thunderbolt so far.
----- Original Message ----
From: Arthur Dent <golgarfrincham at yahoo.com>
To: time-nuts at febo.com
Sent: Sat, September 25, 2010 3:37:39 PM
Subject: [time-nuts] DS1620 Variants in the Thunderbolt
Heathkid:"What is the higher resolution variant of the DS1620
and how can one tell the difference from the chip markings?”
If you read the middle line on the DS1620 temperature chip
you may see "0310D1" where the 5th character is a capital
"D". The 03 is the year and the 10 may be the month of the
year. The D1 is the revision code. The "C" version was
before maybe 2000 so you won't see those unless they are
used as replacements and the "E" ("bad") revision wasn't
used until late 2004. -Arthur
_______________________________________________
time-nuts mailing list -- time-nuts at febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
More information about the Time-nuts_lists.febo.com
mailing list