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SI4420-D1-FT Fiches technique(PDF) 4 Page - List of Unclassifed Manufacturers |
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SI4420-D1-FT Fiches technique(HTML) 4 Page - List of Unclassifed Manufacturers |
4 / 33 page Si4420 4 PACKAGE PIN DEFINITIONS Pin type key: D=digital, A=analog, S=supply, I=input, O=output, IO=input/output Pin Name Type Function 1 SDI DI Data input of the serial control interface 2 SCK DI Clock input of the serial control interface 3 nSEL DI Chip select input of the serial control interface (active low) 4 SDO DO Serial data output with bus hold (tri-state) 5 nIRQ DO Interrupt request output (active low) FSK DI Transmit FSK data input DATA DO Received data output (FIFO not used) 6 nFFS DI FIFO select input (active low) In FIFO mode, when bit ef is set in Configuration Setting Command DLCK DO Received data clock output (Digital filter used, FIFO not used) CFIL AIO External data filter capacitor connection (Analog filter used) 7 FFIT DO FIFO interrupt (active high) Number of the bits in the RX FIFO that reach the preprogrammed limit In FIFO mode, when bit ef is set in Configuration Setting Command 8 CLK DO Microcontroller clock output XTL AIO Crystal connection (the other terminal of crystal to VSS) or external reference input 9 REF AIO External reference input. Use 33 pF series coupling capacitor 10 nRES DIO Open drain reset output with internal pull-up and input buffer (active low) 11 VSS S Ground reference voltage 12 RF2 AIO RF differential signal input/output 13 RF1 AIO RF differential signal input/output 14 VDD S Positive supply voltage 15 ARSSI AO Analog RSSI output nINT DI Interrupt input (active low) 16 VDI DO Valid data indicator output Note: The actual mode of the multipurpose pins (pin 6 and 7) is determined by the TX/RX data I/O settings of the transceiver. |
Numéro de pièce similaire - SI4420-D1-FT |
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Description similaire - SI4420-D1-FT |
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