CC2652R: Compatibility of CC2652R, CC2652RB and CC2652P

Part Number: CC2652R
Other Parts Discussed in Thread: CC2652P,

Hi,

We've already developed pcb based on CC2652R SoC and looking for some alternatives for this chip (due to lack of components)

which could be used without changing the existing layout.

Additional informations that i can provide is we're developing a zigbee device using simplelink_cc13x2_26x2 sdk in version 4.30.00.54.

So i've few questions about compatibility of following SoCs: CC2652R, CC2652RB and CC2652P.

1. Are the CC2652R and CC2652P really compatible pin2pin?
   As i can see in the datasheets CC2652P has less GPIOs (26 - in compare CC2652R has 31).
   CC2652R has GPIOs on pins no. 5,6,7, while CC2652P has on those pins some RF related stuff.
   
   Other thing is that external LF oscillator inputs are on different pins in both of them.
   
   [CC2652R]:
   
   
   
   [CC2652P]:
   
2. CC2652R and CC2652RB looks pin2pin compatible. So my question here is do i need to change anything in software
   if the external 48MHz oscillator will be used? I found this document, which describes what to do when internal BAW is used
   instead of external oscillator, but didn't find anything about inverse situation.
   
   
3. Could you recommend other SoCs which will meet our requirements?

Best regards,
mf