17 Dec
2012
17 Dec
'12
2:14 a.m.
I have a 1972 Signetics Linear Integrated Circuits data book that has a two
page "New Product Advanced Information" data sheet in the 555 Timer. The 500
parts in the index are:
OP Amps 516, 531, 533, 536, 537
Voltage Regulators 550
Comparators 518, 526, 527, 529
Communications 501, 510, 511, 515, 592
Consumer 540, 555
Phase Locked Loops 560, 561, 562, 565, 566, 567
Michael Holley
-----Original Message-----
From: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org]
On Behalf Of Chuck Guzis
Sent: Sunday, December 16, 2012 1:43 PM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: NE555 story on ED
On 12/16/2012 01:22 PM, David Ryskalczyk wrote:
In his own words:
http://www.semiconductormuseum.com/Transistors/LectureHall/Camenzind/C
amenzind_Page2.htm
I'd read that before and Hans' son Peter backs that up. But what was the
thought process behind choosing "555"? Was it the notion of "triple
nickel". The marketing types I knew back then would certainly have thought
that way...
I guess we'll never really know the "story behind the story"
--Chuck
How did
the 555 name come about?
Signetics had "500" numbers, and the earlier
product I worked on was
the 565, 566 and 567. It was just arbitrarily chosen. It was Art
Fury (Marketing Manager) who thought the circuit was gonna sell big
who picked the name "555".