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Datasheet Replacement Marking Code
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25LC128
SI4721 (3)SI472 (7)SI47 (370)SI4 (1072)
Silicon Labs

SI4721-B-EVB

BOARD EVAL SI4721 VERSION B
Silicon Labs

SI4721-B20-GMR

IC RF TxRx Only VHF FM Radio 76MHz ~ 108MHz 20-UFQFN Exposed Pad
Silicon Labs

SI4721-B20-GM

IC RF TxRx Only VHF FM Radio 76MHz ~ 108MHz 20-UFQFN Exposed Pad
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