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CC1121: Use CC1120 instead of CC1121

Part Number: CC1121
Other Parts Discussed in Thread: CC1120

Hi there,

Our company is struggling to source CC1121 radio chips at the moment, but we can source CC1120 radio chips.. 

My question is can the CC1120 and CC1121 be used interchangeably on the same circuit design without having to make component or layout changes?