This question comes from [How can I tell if my installed Android version, not CPU, is a 64 bit or 32 bit one?][1]

On desktop computers it is possible to install a **32-bit** operating system on a **64-bit** hardware device i.e. you can install Ubuntu Linux 32-bit on an AMD FX(tm)-9370 Eight-Core Processor (64-bit).

Does the same case happens for Android? Is there a **32-bit and a 64-bit version** for the same 64-bit device?

Some example links (like ROM downloads in 32 and 64 bits for the same Android device) would be welcome.

  [1]: http://android.stackexchange.com/q/126776/96277