How can you identify nRF51822 silicon build version?

[ray]

Hi,

I wanted to know how I can identify the silicon build version (CA, CO, AA etc) of the nRF51822 from the date code? I have some reels from a distributor in a sealed bag and they have the following part# nRF51822-QFAA-R7. Is there any way to know without having to open the bag and look at the IC? Perhaps the date code?

Thanks

[Ole Morten]

As far as I've understood this, the build code should be printed in the lower right corner of the label. If you're struggling with locating it, could you please take a photo of all the labels on your, and upload it here?

You should also be able to ask your distributor about this, as they should know which revision it is.