Determine Pin Orientation when no notch
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Posted by Jon Slaughter on April 7, 2008, 2:06 pm
Please log in for more thread options special char or anything at all except a line and text? Does the line on the side indicate the top? On the datasheet it shows the normal dot where the first pin is but there is no dot on the chip itself ;/ | |||||||||||||||||||||||||||||||
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Posted by Jon Slaughter on April 7, 2008, 2:22 pm
Please log in for more thread options BTW, the chip is the TMP275. It has a long line at the top or bottom(not on pins sides) and some text. * * * * | TI TMP275 | etc | * * * * the | is the line and * are the pins | |||||||||||||||||||||||||||||||
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Posted by Mike Silva on April 7, 2008, 1:28 pm
Please log in for more thread options >
> > > How the heck do you determine the first pin when there is no notch or an=
y
> > special char or anything at all except a line and text? =A0Does the line=
on
> > the side indicate the top? On the datasheet it shows the normal dot wher=
e
> > the first pin is but there is no dot on the chip itself ;/
>
n
> BTW, the chip is the TMP275. It has a long line at the top or bottom(not o= > pins sides) and some text.
> > =A0* =A0* =A0* =A0* > | TI TMP275 > | =A0 =A0 etc > | > =A0* =A0* =A0* =A0* > > the | is the line and * are the pins The line has always been at the notch end on any chip I've ever seen. | |||||||||||||||||||||||||||||||
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Posted by Jon Slaughter on April 7, 2008, 2:54 pm
Please log in for more thread options
>
> > > How the heck do you determine the first pin when there is no notch or
> > any > > special char or anything at all except a line and text? Does the line on > > the side indicate the top? On the datasheet it shows the normal dot > > where > > the first pin is but there is no dot on the chip itself ;/ >
> BTW, the chip is the TMP275. It has a long line at the top or bottom(not > on > pins sides) and some text. > > * * * * > | TI TMP275 > | etc > | > * * * * > > the | is the line and * are the pins The line has always been at the notch end on any chip I've ever seen. Thats the way it seems and was my first thought but just making sure. | |||||||||||||||||||||||||||||||
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Posted by Jon Slaughter on April 7, 2008, 2:52 pm
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>
> Jon Slaughter wrote: >>
>> > How the heck do you determine the first pin when there is no notch or
>> > any >> > special char or anything at all except a line and text? Does the line >> > on >> > the side indicate the top? On the datasheet it shows the normal dot >> > where >> > the first pin is but there is no dot on the chip itself ;/ >> > >> > >> > >>
>> BTW, the chip is the TMP275. It has a long line at the top or bottom(not >> on >> pins sides) and some text. >> >> * * * * >> | TI TMP275 >> | etc >> | >> * * * * >> >> the | is the line and * are the pins >
> > What KIND of package? > SOIC but not sure why that matters | |||||||||||||||||||||||||||||||
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> special char or anything at all except a line and text? Does the line on
> the side indicate the top? On the datasheet it shows the normal dot where
> the first pin is but there is no dot on the chip itself ;/
>
>
>