How are IC's Labeled?
On Sat, 06 Dec 2008 16:04:16 +0000, Eeyore
wrote:
"Michael A. Terrell" wrote:
Eeyore wrote:
gore wrote:
I work at an electronics contract manufacturimg facility. We do work for
several companies and I wonder why they use different labels on the
schematics and pcb's to refer to IC's. Some of them have a U1, an A1, and
X1, or an IC1. Why do they do this? Is there a standard used to label IC's
in a schematic? Just curious why this is.
X should be a crystal.
A would be an amplifier (I haven't ever seen that btw)
IC is self-explanatory and is widely used in Europe
U is some weird US practice. U for what ? Rumour has it that it meant
'unknown'.
Only outside the USA, by know nothing 'experts'.
The USA represents 5% of the world population.
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Yes, and never have so many owed so much to so few.
JF
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