Is Texas Instrument wrong with their pin number on TO-92 package?Where is the oscilator in the 555 chip provided here?TLC59116 (Y59116) maximum output currentInput current in an icWhat is Vcc-2 referring to in the Texas Instruments Tech Sheet for the SN74AS138?How high is the TLC5940?Negative recommended intensity on read of logical 1 D-latch octal registerwhat is the difference between voltage output swing at no load vs at 10k load?Polarised vs non Polarised CapacitorMaximum Clock Input Frequency Datasheet Confusion
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Is Texas Instrument wrong with their pin number on TO-92 package?
Where is the oscilator in the 555 chip provided here?TLC59116 (Y59116) maximum output currentInput current in an icWhat is Vcc-2 referring to in the Texas Instruments Tech Sheet for the SN74AS138?How high is the TLC5940?Negative recommended intensity on read of logical 1 D-latch octal registerwhat is the difference between voltage output swing at no load vs at 10k load?Polarised vs non Polarised CapacitorMaximum Clock Input Frequency Datasheet Confusion
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margin-bottom:0;
$begingroup$
The official JEDEC standard to number pins on a TO-92 package is the following:
But in many datasheets from Texas Instruments, this order seem reversed. For example, this is a screenshot from the datasheet for the LM185 :
Link to the full datasheet :
http://www.ti.com/lit/ds/symlink/lm185-1.2-n.pdf (page 1)
Texas Instruments's official TO-92 documentation doesn't help since there is an ambiguity as if the drawing is from the top or the bottom : http://www.ti.com/lit/ml/msot002d/msot002d.pdf
In all the datasheets where the pinout is reversed, they used a view from the top or the bottom. In some datasheets the pinout is correct, but they used an isometric view which eliminate all ambiguity. This could be the source of the confusion, but I just don't see how I could misinterpret "Bottom view" or "Top view" for a TO-92 package.
Is Texas Instruments wrong or I don't understand what a bottom view is?
To prove that this is not an isolated mistake in a single datasheet, here are few links to some Texas Instruments datasheets where this happen :
http://www.ti.com/lit/ds/symlink/tl431.pdf (page 4)
http://www.ti.com/lit/ds/symlink/lm285-2.5.pdf (page 3)
http://www.ti.com/lit/ds/symlink/lm4040-n.pdf (page 4)
datasheet pinout
$endgroup$
add a comment
|
$begingroup$
The official JEDEC standard to number pins on a TO-92 package is the following:
But in many datasheets from Texas Instruments, this order seem reversed. For example, this is a screenshot from the datasheet for the LM185 :
Link to the full datasheet :
http://www.ti.com/lit/ds/symlink/lm185-1.2-n.pdf (page 1)
Texas Instruments's official TO-92 documentation doesn't help since there is an ambiguity as if the drawing is from the top or the bottom : http://www.ti.com/lit/ml/msot002d/msot002d.pdf
In all the datasheets where the pinout is reversed, they used a view from the top or the bottom. In some datasheets the pinout is correct, but they used an isometric view which eliminate all ambiguity. This could be the source of the confusion, but I just don't see how I could misinterpret "Bottom view" or "Top view" for a TO-92 package.
Is Texas Instruments wrong or I don't understand what a bottom view is?
To prove that this is not an isolated mistake in a single datasheet, here are few links to some Texas Instruments datasheets where this happen :
http://www.ti.com/lit/ds/symlink/tl431.pdf (page 4)
http://www.ti.com/lit/ds/symlink/lm285-2.5.pdf (page 3)
http://www.ti.com/lit/ds/symlink/lm4040-n.pdf (page 4)
datasheet pinout
$endgroup$
1
$begingroup$
Please don't assume that Wikipedia or "the internet" is an official source for any information like this. If you want to know what is correct you must find the actual standard, as @TimWescott did.
$endgroup$
– Elliot Alderson
Aug 10 at 23:40
add a comment
|
$begingroup$
The official JEDEC standard to number pins on a TO-92 package is the following:
But in many datasheets from Texas Instruments, this order seem reversed. For example, this is a screenshot from the datasheet for the LM185 :
Link to the full datasheet :
http://www.ti.com/lit/ds/symlink/lm185-1.2-n.pdf (page 1)
Texas Instruments's official TO-92 documentation doesn't help since there is an ambiguity as if the drawing is from the top or the bottom : http://www.ti.com/lit/ml/msot002d/msot002d.pdf
In all the datasheets where the pinout is reversed, they used a view from the top or the bottom. In some datasheets the pinout is correct, but they used an isometric view which eliminate all ambiguity. This could be the source of the confusion, but I just don't see how I could misinterpret "Bottom view" or "Top view" for a TO-92 package.
Is Texas Instruments wrong or I don't understand what a bottom view is?
To prove that this is not an isolated mistake in a single datasheet, here are few links to some Texas Instruments datasheets where this happen :
http://www.ti.com/lit/ds/symlink/tl431.pdf (page 4)
http://www.ti.com/lit/ds/symlink/lm285-2.5.pdf (page 3)
http://www.ti.com/lit/ds/symlink/lm4040-n.pdf (page 4)
datasheet pinout
$endgroup$
The official JEDEC standard to number pins on a TO-92 package is the following:
But in many datasheets from Texas Instruments, this order seem reversed. For example, this is a screenshot from the datasheet for the LM185 :
Link to the full datasheet :
http://www.ti.com/lit/ds/symlink/lm185-1.2-n.pdf (page 1)
Texas Instruments's official TO-92 documentation doesn't help since there is an ambiguity as if the drawing is from the top or the bottom : http://www.ti.com/lit/ml/msot002d/msot002d.pdf
In all the datasheets where the pinout is reversed, they used a view from the top or the bottom. In some datasheets the pinout is correct, but they used an isometric view which eliminate all ambiguity. This could be the source of the confusion, but I just don't see how I could misinterpret "Bottom view" or "Top view" for a TO-92 package.
Is Texas Instruments wrong or I don't understand what a bottom view is?
To prove that this is not an isolated mistake in a single datasheet, here are few links to some Texas Instruments datasheets where this happen :
http://www.ti.com/lit/ds/symlink/tl431.pdf (page 4)
http://www.ti.com/lit/ds/symlink/lm285-2.5.pdf (page 3)
http://www.ti.com/lit/ds/symlink/lm4040-n.pdf (page 4)
datasheet pinout
datasheet pinout
edited Aug 11 at 1:19
Iouraxos
asked Aug 10 at 23:25
IouraxosIouraxos
807 bronze badges
807 bronze badges
1
$begingroup$
Please don't assume that Wikipedia or "the internet" is an official source for any information like this. If you want to know what is correct you must find the actual standard, as @TimWescott did.
$endgroup$
– Elliot Alderson
Aug 10 at 23:40
add a comment
|
1
$begingroup$
Please don't assume that Wikipedia or "the internet" is an official source for any information like this. If you want to know what is correct you must find the actual standard, as @TimWescott did.
$endgroup$
– Elliot Alderson
Aug 10 at 23:40
1
1
$begingroup$
Please don't assume that Wikipedia or "the internet" is an official source for any information like this. If you want to know what is correct you must find the actual standard, as @TimWescott did.
$endgroup$
– Elliot Alderson
Aug 10 at 23:40
$begingroup$
Please don't assume that Wikipedia or "the internet" is an official source for any information like this. If you want to know what is correct you must find the actual standard, as @TimWescott did.
$endgroup$
– Elliot Alderson
Aug 10 at 23:40
add a comment
|
3 Answers
3
active
oldest
votes
$begingroup$
The LM385 was originally produced by National Semiconductor. The earliest reference I can find is from their 1980 Linear Databook. It shows the same 'wrong' pinout. Other manufacturers whose datasheets have the same pinout include Motorola and Telcom Semiconductor.
So it seems the 'wrong' pinout originated at National Semiconductor, and has been copied by second-source manufacturers. Texas Instruments acquired National Semiconductor on September 23, 2011. This would have given them the opportunity to use National's datasheets for parts they were second-sourcing.
$endgroup$
add a comment
|
$begingroup$
I don't see any ambiguity in any of the datasheets, and the only one that disagrees with the conventionally accepted numbering scheme is the first one. The others show the pins in solid lines (not dashed) so they are clearly bottom views.
By the way, TI was not the originator of the LM385 chips, rather they bought National Semiconductor. You can find the same numbering scheme on NS datasheets, for example here. The part is rather old, the same pin numbering is shown on page 2-47 of NS's 1982 databook (the oldest one I happen to have on hand), it probably dates back to some time in the 1970s. The databook refers to NS Package number Z03D, and you can find a datasheet for that package here
As you can see, it's consistent with your LM385 datasheet, but inconsistent with more modern numbering.
A relevant question might be when (or even if) numbering for the TO-92 package was standardized. I don't recall it being standardized during those years, instead we would use E-B-C or similar letters for the pin designations.
For what it's worth, alternate sources of the LM385 et al may disagree on what number to use for a given pin, but they certainly agree on the pinout, however you number them. The part is somewhere in the range of mature to obsolescent in life cycle so it's not much to worry about provided you follow one data sheet and don't mix datasheets.
$endgroup$
add a comment
|
$begingroup$
You could hunt down the JEDEC TO-92 standard yourself. I've included the link, but you need to register (for free).
Yes, TI disagrees with JEDEC. But as long as your board works, does it matter?
$endgroup$
$begingroup$
How can Texas Instruments, one of the world biggest semiconductor manufacturer, disagree with JEDEC? Also, it's the point of this question, my board have a 50% chance of working since i don't know if I should refer myself to the figure or the table of the datasheet.
$endgroup$
– Iouraxos
Aug 10 at 23:42
5
$begingroup$
@louraxos, TI may have been using their numbering since before JEDEC standardized theirs.
$endgroup$
– The Photon
Aug 11 at 0:26
1
$begingroup$
ti.com/lit/ds/symlink/lm185-1.2-n.pdf (SVNS72E - revised April 2013) page 1 figure 1 LP package pin numbering does indeed appear to be inconsistent with the package drawing LP0003A on page 22. The package drawing note 4 explicitly makes reference to JEDEC TO-226 variation AA, which uses a bottom view consistent with the drawing. You should contact ti.com applications engineering support, it's possible that this is an error in their datasheet. At the very least, it's confusing and not self-consistent within the document, so you have every right to demand TI address your question.
$endgroup$
– MarkU
Aug 11 at 0:28
3
$begingroup$
@louraxes, TI has acquired several other companies over the years. Some of those parts might be inherited from other companies that used the JEDEC numbering. Or some TI divisions might have chosen to adopt the JEDEC numbering while others didn't.
$endgroup$
– The Photon
Aug 11 at 1:08
2
$begingroup$
@MarkU I'm waiting for TI response, I'll post it when I have it.
$endgroup$
– Iouraxos
Aug 11 at 1:10
|
show 4 more comments
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
The LM385 was originally produced by National Semiconductor. The earliest reference I can find is from their 1980 Linear Databook. It shows the same 'wrong' pinout. Other manufacturers whose datasheets have the same pinout include Motorola and Telcom Semiconductor.
So it seems the 'wrong' pinout originated at National Semiconductor, and has been copied by second-source manufacturers. Texas Instruments acquired National Semiconductor on September 23, 2011. This would have given them the opportunity to use National's datasheets for parts they were second-sourcing.
$endgroup$
add a comment
|
$begingroup$
The LM385 was originally produced by National Semiconductor. The earliest reference I can find is from their 1980 Linear Databook. It shows the same 'wrong' pinout. Other manufacturers whose datasheets have the same pinout include Motorola and Telcom Semiconductor.
So it seems the 'wrong' pinout originated at National Semiconductor, and has been copied by second-source manufacturers. Texas Instruments acquired National Semiconductor on September 23, 2011. This would have given them the opportunity to use National's datasheets for parts they were second-sourcing.
$endgroup$
add a comment
|
$begingroup$
The LM385 was originally produced by National Semiconductor. The earliest reference I can find is from their 1980 Linear Databook. It shows the same 'wrong' pinout. Other manufacturers whose datasheets have the same pinout include Motorola and Telcom Semiconductor.
So it seems the 'wrong' pinout originated at National Semiconductor, and has been copied by second-source manufacturers. Texas Instruments acquired National Semiconductor on September 23, 2011. This would have given them the opportunity to use National's datasheets for parts they were second-sourcing.
$endgroup$
The LM385 was originally produced by National Semiconductor. The earliest reference I can find is from their 1980 Linear Databook. It shows the same 'wrong' pinout. Other manufacturers whose datasheets have the same pinout include Motorola and Telcom Semiconductor.
So it seems the 'wrong' pinout originated at National Semiconductor, and has been copied by second-source manufacturers. Texas Instruments acquired National Semiconductor on September 23, 2011. This would have given them the opportunity to use National's datasheets for parts they were second-sourcing.
answered Aug 11 at 1:41
Bruce AbbottBruce Abbott
31.6k1 gold badge29 silver badges45 bronze badges
31.6k1 gold badge29 silver badges45 bronze badges
add a comment
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add a comment
|
$begingroup$
I don't see any ambiguity in any of the datasheets, and the only one that disagrees with the conventionally accepted numbering scheme is the first one. The others show the pins in solid lines (not dashed) so they are clearly bottom views.
By the way, TI was not the originator of the LM385 chips, rather they bought National Semiconductor. You can find the same numbering scheme on NS datasheets, for example here. The part is rather old, the same pin numbering is shown on page 2-47 of NS's 1982 databook (the oldest one I happen to have on hand), it probably dates back to some time in the 1970s. The databook refers to NS Package number Z03D, and you can find a datasheet for that package here
As you can see, it's consistent with your LM385 datasheet, but inconsistent with more modern numbering.
A relevant question might be when (or even if) numbering for the TO-92 package was standardized. I don't recall it being standardized during those years, instead we would use E-B-C or similar letters for the pin designations.
For what it's worth, alternate sources of the LM385 et al may disagree on what number to use for a given pin, but they certainly agree on the pinout, however you number them. The part is somewhere in the range of mature to obsolescent in life cycle so it's not much to worry about provided you follow one data sheet and don't mix datasheets.
$endgroup$
add a comment
|
$begingroup$
I don't see any ambiguity in any of the datasheets, and the only one that disagrees with the conventionally accepted numbering scheme is the first one. The others show the pins in solid lines (not dashed) so they are clearly bottom views.
By the way, TI was not the originator of the LM385 chips, rather they bought National Semiconductor. You can find the same numbering scheme on NS datasheets, for example here. The part is rather old, the same pin numbering is shown on page 2-47 of NS's 1982 databook (the oldest one I happen to have on hand), it probably dates back to some time in the 1970s. The databook refers to NS Package number Z03D, and you can find a datasheet for that package here
As you can see, it's consistent with your LM385 datasheet, but inconsistent with more modern numbering.
A relevant question might be when (or even if) numbering for the TO-92 package was standardized. I don't recall it being standardized during those years, instead we would use E-B-C or similar letters for the pin designations.
For what it's worth, alternate sources of the LM385 et al may disagree on what number to use for a given pin, but they certainly agree on the pinout, however you number them. The part is somewhere in the range of mature to obsolescent in life cycle so it's not much to worry about provided you follow one data sheet and don't mix datasheets.
$endgroup$
add a comment
|
$begingroup$
I don't see any ambiguity in any of the datasheets, and the only one that disagrees with the conventionally accepted numbering scheme is the first one. The others show the pins in solid lines (not dashed) so they are clearly bottom views.
By the way, TI was not the originator of the LM385 chips, rather they bought National Semiconductor. You can find the same numbering scheme on NS datasheets, for example here. The part is rather old, the same pin numbering is shown on page 2-47 of NS's 1982 databook (the oldest one I happen to have on hand), it probably dates back to some time in the 1970s. The databook refers to NS Package number Z03D, and you can find a datasheet for that package here
As you can see, it's consistent with your LM385 datasheet, but inconsistent with more modern numbering.
A relevant question might be when (or even if) numbering for the TO-92 package was standardized. I don't recall it being standardized during those years, instead we would use E-B-C or similar letters for the pin designations.
For what it's worth, alternate sources of the LM385 et al may disagree on what number to use for a given pin, but they certainly agree on the pinout, however you number them. The part is somewhere in the range of mature to obsolescent in life cycle so it's not much to worry about provided you follow one data sheet and don't mix datasheets.
$endgroup$
I don't see any ambiguity in any of the datasheets, and the only one that disagrees with the conventionally accepted numbering scheme is the first one. The others show the pins in solid lines (not dashed) so they are clearly bottom views.
By the way, TI was not the originator of the LM385 chips, rather they bought National Semiconductor. You can find the same numbering scheme on NS datasheets, for example here. The part is rather old, the same pin numbering is shown on page 2-47 of NS's 1982 databook (the oldest one I happen to have on hand), it probably dates back to some time in the 1970s. The databook refers to NS Package number Z03D, and you can find a datasheet for that package here
As you can see, it's consistent with your LM385 datasheet, but inconsistent with more modern numbering.
A relevant question might be when (or even if) numbering for the TO-92 package was standardized. I don't recall it being standardized during those years, instead we would use E-B-C or similar letters for the pin designations.
For what it's worth, alternate sources of the LM385 et al may disagree on what number to use for a given pin, but they certainly agree on the pinout, however you number them. The part is somewhere in the range of mature to obsolescent in life cycle so it's not much to worry about provided you follow one data sheet and don't mix datasheets.
edited Aug 11 at 1:36
answered Aug 11 at 1:21
Spehro PefhanySpehro Pefhany
228k5 gold badges183 silver badges480 bronze badges
228k5 gold badges183 silver badges480 bronze badges
add a comment
|
add a comment
|
$begingroup$
You could hunt down the JEDEC TO-92 standard yourself. I've included the link, but you need to register (for free).
Yes, TI disagrees with JEDEC. But as long as your board works, does it matter?
$endgroup$
$begingroup$
How can Texas Instruments, one of the world biggest semiconductor manufacturer, disagree with JEDEC? Also, it's the point of this question, my board have a 50% chance of working since i don't know if I should refer myself to the figure or the table of the datasheet.
$endgroup$
– Iouraxos
Aug 10 at 23:42
5
$begingroup$
@louraxos, TI may have been using their numbering since before JEDEC standardized theirs.
$endgroup$
– The Photon
Aug 11 at 0:26
1
$begingroup$
ti.com/lit/ds/symlink/lm185-1.2-n.pdf (SVNS72E - revised April 2013) page 1 figure 1 LP package pin numbering does indeed appear to be inconsistent with the package drawing LP0003A on page 22. The package drawing note 4 explicitly makes reference to JEDEC TO-226 variation AA, which uses a bottom view consistent with the drawing. You should contact ti.com applications engineering support, it's possible that this is an error in their datasheet. At the very least, it's confusing and not self-consistent within the document, so you have every right to demand TI address your question.
$endgroup$
– MarkU
Aug 11 at 0:28
3
$begingroup$
@louraxes, TI has acquired several other companies over the years. Some of those parts might be inherited from other companies that used the JEDEC numbering. Or some TI divisions might have chosen to adopt the JEDEC numbering while others didn't.
$endgroup$
– The Photon
Aug 11 at 1:08
2
$begingroup$
@MarkU I'm waiting for TI response, I'll post it when I have it.
$endgroup$
– Iouraxos
Aug 11 at 1:10
|
show 4 more comments
$begingroup$
You could hunt down the JEDEC TO-92 standard yourself. I've included the link, but you need to register (for free).
Yes, TI disagrees with JEDEC. But as long as your board works, does it matter?
$endgroup$
$begingroup$
How can Texas Instruments, one of the world biggest semiconductor manufacturer, disagree with JEDEC? Also, it's the point of this question, my board have a 50% chance of working since i don't know if I should refer myself to the figure or the table of the datasheet.
$endgroup$
– Iouraxos
Aug 10 at 23:42
5
$begingroup$
@louraxos, TI may have been using their numbering since before JEDEC standardized theirs.
$endgroup$
– The Photon
Aug 11 at 0:26
1
$begingroup$
ti.com/lit/ds/symlink/lm185-1.2-n.pdf (SVNS72E - revised April 2013) page 1 figure 1 LP package pin numbering does indeed appear to be inconsistent with the package drawing LP0003A on page 22. The package drawing note 4 explicitly makes reference to JEDEC TO-226 variation AA, which uses a bottom view consistent with the drawing. You should contact ti.com applications engineering support, it's possible that this is an error in their datasheet. At the very least, it's confusing and not self-consistent within the document, so you have every right to demand TI address your question.
$endgroup$
– MarkU
Aug 11 at 0:28
3
$begingroup$
@louraxes, TI has acquired several other companies over the years. Some of those parts might be inherited from other companies that used the JEDEC numbering. Or some TI divisions might have chosen to adopt the JEDEC numbering while others didn't.
$endgroup$
– The Photon
Aug 11 at 1:08
2
$begingroup$
@MarkU I'm waiting for TI response, I'll post it when I have it.
$endgroup$
– Iouraxos
Aug 11 at 1:10
|
show 4 more comments
$begingroup$
You could hunt down the JEDEC TO-92 standard yourself. I've included the link, but you need to register (for free).
Yes, TI disagrees with JEDEC. But as long as your board works, does it matter?
$endgroup$
You could hunt down the JEDEC TO-92 standard yourself. I've included the link, but you need to register (for free).
Yes, TI disagrees with JEDEC. But as long as your board works, does it matter?
answered Aug 10 at 23:37
TimWescottTimWescott
16.2k1 gold badge16 silver badges31 bronze badges
16.2k1 gold badge16 silver badges31 bronze badges
$begingroup$
How can Texas Instruments, one of the world biggest semiconductor manufacturer, disagree with JEDEC? Also, it's the point of this question, my board have a 50% chance of working since i don't know if I should refer myself to the figure or the table of the datasheet.
$endgroup$
– Iouraxos
Aug 10 at 23:42
5
$begingroup$
@louraxos, TI may have been using their numbering since before JEDEC standardized theirs.
$endgroup$
– The Photon
Aug 11 at 0:26
1
$begingroup$
ti.com/lit/ds/symlink/lm185-1.2-n.pdf (SVNS72E - revised April 2013) page 1 figure 1 LP package pin numbering does indeed appear to be inconsistent with the package drawing LP0003A on page 22. The package drawing note 4 explicitly makes reference to JEDEC TO-226 variation AA, which uses a bottom view consistent with the drawing. You should contact ti.com applications engineering support, it's possible that this is an error in their datasheet. At the very least, it's confusing and not self-consistent within the document, so you have every right to demand TI address your question.
$endgroup$
– MarkU
Aug 11 at 0:28
3
$begingroup$
@louraxes, TI has acquired several other companies over the years. Some of those parts might be inherited from other companies that used the JEDEC numbering. Or some TI divisions might have chosen to adopt the JEDEC numbering while others didn't.
$endgroup$
– The Photon
Aug 11 at 1:08
2
$begingroup$
@MarkU I'm waiting for TI response, I'll post it when I have it.
$endgroup$
– Iouraxos
Aug 11 at 1:10
|
show 4 more comments
$begingroup$
How can Texas Instruments, one of the world biggest semiconductor manufacturer, disagree with JEDEC? Also, it's the point of this question, my board have a 50% chance of working since i don't know if I should refer myself to the figure or the table of the datasheet.
$endgroup$
– Iouraxos
Aug 10 at 23:42
5
$begingroup$
@louraxos, TI may have been using their numbering since before JEDEC standardized theirs.
$endgroup$
– The Photon
Aug 11 at 0:26
1
$begingroup$
ti.com/lit/ds/symlink/lm185-1.2-n.pdf (SVNS72E - revised April 2013) page 1 figure 1 LP package pin numbering does indeed appear to be inconsistent with the package drawing LP0003A on page 22. The package drawing note 4 explicitly makes reference to JEDEC TO-226 variation AA, which uses a bottom view consistent with the drawing. You should contact ti.com applications engineering support, it's possible that this is an error in their datasheet. At the very least, it's confusing and not self-consistent within the document, so you have every right to demand TI address your question.
$endgroup$
– MarkU
Aug 11 at 0:28
3
$begingroup$
@louraxes, TI has acquired several other companies over the years. Some of those parts might be inherited from other companies that used the JEDEC numbering. Or some TI divisions might have chosen to adopt the JEDEC numbering while others didn't.
$endgroup$
– The Photon
Aug 11 at 1:08
2
$begingroup$
@MarkU I'm waiting for TI response, I'll post it when I have it.
$endgroup$
– Iouraxos
Aug 11 at 1:10
$begingroup$
How can Texas Instruments, one of the world biggest semiconductor manufacturer, disagree with JEDEC? Also, it's the point of this question, my board have a 50% chance of working since i don't know if I should refer myself to the figure or the table of the datasheet.
$endgroup$
– Iouraxos
Aug 10 at 23:42
$begingroup$
How can Texas Instruments, one of the world biggest semiconductor manufacturer, disagree with JEDEC? Also, it's the point of this question, my board have a 50% chance of working since i don't know if I should refer myself to the figure or the table of the datasheet.
$endgroup$
– Iouraxos
Aug 10 at 23:42
5
5
$begingroup$
@louraxos, TI may have been using their numbering since before JEDEC standardized theirs.
$endgroup$
– The Photon
Aug 11 at 0:26
$begingroup$
@louraxos, TI may have been using their numbering since before JEDEC standardized theirs.
$endgroup$
– The Photon
Aug 11 at 0:26
1
1
$begingroup$
ti.com/lit/ds/symlink/lm185-1.2-n.pdf (SVNS72E - revised April 2013) page 1 figure 1 LP package pin numbering does indeed appear to be inconsistent with the package drawing LP0003A on page 22. The package drawing note 4 explicitly makes reference to JEDEC TO-226 variation AA, which uses a bottom view consistent with the drawing. You should contact ti.com applications engineering support, it's possible that this is an error in their datasheet. At the very least, it's confusing and not self-consistent within the document, so you have every right to demand TI address your question.
$endgroup$
– MarkU
Aug 11 at 0:28
$begingroup$
ti.com/lit/ds/symlink/lm185-1.2-n.pdf (SVNS72E - revised April 2013) page 1 figure 1 LP package pin numbering does indeed appear to be inconsistent with the package drawing LP0003A on page 22. The package drawing note 4 explicitly makes reference to JEDEC TO-226 variation AA, which uses a bottom view consistent with the drawing. You should contact ti.com applications engineering support, it's possible that this is an error in their datasheet. At the very least, it's confusing and not self-consistent within the document, so you have every right to demand TI address your question.
$endgroup$
– MarkU
Aug 11 at 0:28
3
3
$begingroup$
@louraxes, TI has acquired several other companies over the years. Some of those parts might be inherited from other companies that used the JEDEC numbering. Or some TI divisions might have chosen to adopt the JEDEC numbering while others didn't.
$endgroup$
– The Photon
Aug 11 at 1:08
$begingroup$
@louraxes, TI has acquired several other companies over the years. Some of those parts might be inherited from other companies that used the JEDEC numbering. Or some TI divisions might have chosen to adopt the JEDEC numbering while others didn't.
$endgroup$
– The Photon
Aug 11 at 1:08
2
2
$begingroup$
@MarkU I'm waiting for TI response, I'll post it when I have it.
$endgroup$
– Iouraxos
Aug 11 at 1:10
$begingroup$
@MarkU I'm waiting for TI response, I'll post it when I have it.
$endgroup$
– Iouraxos
Aug 11 at 1:10
|
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Please don't assume that Wikipedia or "the internet" is an official source for any information like this. If you want to know what is correct you must find the actual standard, as @TimWescott did.
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– Elliot Alderson
Aug 10 at 23:40