> On Sun, 2010-10-31 at 15:24 +0100, Wouter van Ooijen wrote:
>> Note that google "nand gate symbol" shows only the old-fashioned
>> symbols, and the first match http://www.kpsec.freeuk.com/gates.htm
>> expresses a clear preference for the old-fashioned symbools :(
>
> I've never even seen those "new" symbols, they are truly horrible,
> hopefully they'll never catch on.
>
> TTYL
>

I think I first saw these "new" symbols in a TI catalog in the 1980s. I'm
not used to them, so I do find them hard to read. Most stuff I'm using now
tends to be represented as boxes since there's so much stuff in them. I
note that the above referenced web page uses bubbles to indicate an active
low output. TI uses a triangle or slanted line. See
http://focus.ti.com/lit/ds/symlink/74ac11000.pdf . Also, from that
datasheet, "This symbol is in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12."

Harold




--=20
FCC Rules Updated Daily at http://www.hallikainen.com - Advertising
opportunities available!
--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.