25LC128
SX125 (2)SX12 (67)SX1 (125)

Semtech

SX1257IWLTRT

IC RF TxRx Only 802.15.4 862Mhz ~ 1.02GHz 32-WFQFN Exposed Pad
Semtech

SX1255IWLTRT

IC RF TxRx Only 802.15.4 400MHz ~ 510MHz 32-WFQFN Exposed Pad

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