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25LC128
SI4421-A0 (2)SI4421-A (4)SI4421 (6)SI442 (24)SI44 (166)SI4 (1072)
Silicon Labs

SI4421-A0-FT

IC RF TxRx Only General ISM < 1GHz 315MHz, 434MHz, 868MHz, 915MHz 16-TSSOP (0.173", 4.40mm Width)
Silicon Labs

SI4421-A0-FTR

IC RF TxRx Only General ISM < 1GHz 315MHz, 434MHz, 868MHz, 915MHz 16-TSSOP (0.173", 4.40mm Width)
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