SI4438 Series

Part	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Current - Transmitting	GPIO Count	Data Rate (Max)	Sensitivity	Operating Temperature (Min)	Operating Temperature (Max)	Power - Output	Serial Interfaces	RF Family/Standard	Frequency (Max)	Frequency (Min)	Package / Case	Type	Modulation	Mounting Type	Package Width	Package Name	Package Length	Current - Receiving
SILICON LABS SI4438-B1C-FMR	3.6 V	1.8 V	75 mA	4	500 kbps	-124 dBm	-40 °C	85 °C	20 dBm	SPI	General ISM < 1GHz	525 MHz	425 MHz	20-VFQFN Exposed Pad	TxRx Only	FSK GFSK GMSK OOK	Surface Mount	4 mm	20-QFN	4 mm	14 mA
SILICON LABS SI4438-C2A-GMR	3.6 V	1.8 V	75 mA	4	500 kbps	-124 dBm	-40 °C	85 °C	20 dBm	SPI	General ISM < 1GHz	525 MHz	425 MHz	20-VFQFN Exposed Pad	TxRx Only	FSK GFSK GMSK OOK	Surface Mount	4 mm	20-QFN	4 mm	13.7 mA
SILICON LABS SI4438-C2A-GM	3.6 V	1.8 V	75 mA	4	500 kbps	-124 dBm	-40 °C	85 °C	20 dBm	SPI	General ISM < 1GHz	525 MHz	425 MHz	20-VFQFN Exposed Pad	TxRx Only	FSK GFSK GMSK OOK	Surface Mount	4 mm	20-QFN	4 mm	13.7 mA

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