Hi Mark,
It looks like some of the pins are "shorted" together on the package.I think this is where the discrepancy is coming from. I think there are other ti devices that share this package where each of the shorted pins represents a 22pins.
Yes, the device should only have 16 pins. see below. I circled the shorted pins.
You can download the ultra librarian to assist with implementing the part into your library here:
Thanks,
Andrew
No, there is a 16 pad VQFN and a 22 pad VQFN. If pads are shorted together, the pads would be called out differently. There are even unshorted pads for example, pad 17. So thats not it. I know what it is but I cannot proceed until the problem is fixed and I have a new data sheet.
See my attachment of a different part that actually calls out a 16 pin vqfn and its package outline. Its shown below. The problem with the data sheet for the 61495 is its lumped together with other parts. IF the part is indeed a 16 pin VQFN and follows the pinout the package outline is completely incorrect for a 61495, the part is 16 pins and the package outline in the data sheet is 22 pads and it has nothing to do with pads shorted together because the package outline in that data sheet does NOT show land patterns for shorted pads it shows land patterns for individual pins PLUS the pinout does NOT mention pins 17 through 22 as no connects or anything else.
As shown below, which is what I believe the package outline should be, there are 16 pins and 16 pads and yes the corner pads are rectangles to take into account shorted connections on the physical device.
Even if I could use the physical package outline from this other device it does not necessarily correctly correlate the pinout of the 61495 to the package outline.
The 61495 data sheet does not either:
A. Have the correct pinout on pages 4 and 5 or
B. Have the correct package outline shown on page 61.
