8 Nov
2007
8 Nov
'07
1:18 p.m.
Holger Veit said:
[...]
And finally:
http://www.eeca.org/data/File/PE/D15%20final%20version%202007_06.pdf
So I was partly wrong: for digital circuits, the first two letters are a
manufacturer's designator. The 'FC' in the above denotes Philips, 'FL'
for
instance is Siemens/Infineon.
To add insult to the injury: the same, in this case TTL, circuit has
different names. I found the following, incomplete cross reference table
in a 1973 Siemens data book:
Philips Siemens TI
FJH101 FLH131 SN7430
FJH111 FLH121 SN7420
FJH121 FLH111 SN7410
FJH131 FLH101 SN7400
FJH141 FLH141 SN7440
FJH151 FLH151 SN7450
FJH161 FLH161 SN7451
FJH171 FLH171 SN7453
FJH181 FLH181 SN7454
FJH191 FLH221 SN7480
FJH201 FLH231 SN7482
FJH211 FLH241 SN7483
FJH221 FLH191 SN7402
FJH231 FLH201 SN7401
FJH241 FLH211 SN7404
FJH251 FLH271 SN7405
FJJ101 FLJ101 SN7470
FJJ111 FLJ111 SN7472
FJJ121 FLJ121 SN7473
FJJ131 FLJ141 SN7474
FJJ141 FLJ161 SN7490A
FJJ181 FLJ151 SN7475
FJJ191 FLJ131 SN7476
FJJ211 FLJ181 SN7493A
FJJ231 FLJ191 SN7495A
FJJ251 FLJ171 SN7492A
FJL101 FLL101 SN74141
FJY101 FLY101 SN7460
There are many more relations between Siemens FL* types and the standard
74/84/49 circuits.
--
Holger
I have at
least one old Mullard (==Philips :-)) databook containing ICs
with these numbers. I'd be interested in seeing the coding, though, I
think I have soem 'FCH161' chips in the spares box...
More on this:
The above convention was named ProElectron standard or ProElectron naming
convention. It is still survivu?ng in European analog circuits used in
consumer products like TV sets.
I digged out an incomplete document which describes a bit of this:
http://www.nxp.com/acrobat_download/various/HBPROEL.pdf
This does not talk about the historic series like FL, or FC, or FZ, but
ProElectron is some starting point for that to look for them.