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SI4021 Folha de dados(PDF) 3 Page - Silicon Laboratories |
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SI4021 Folha de dados(HTML) 3 Page - Silicon Laboratories |
3 / 35 page Si4021 3 PACKAGE PIN DEFINITIONS, MICROCONTROLLER MODE Pin type key: D=digital, A=analog, S=supply, I=input, O=output, IO=input/output Microcontroller Mode Pin Assignment SDI SCK nSEL PB1 PB2 PB3 PB4 CLK FSK VDD nIRQ RFP RFN MOD VSS XTL 1 2 4 5 3 6 7 8 16 15 13 12 14 11 10 9 Pin Name Type Function 1 SDI DI Data input of serial control interface 2 SCK DI Clock input of serial control interface 3 nSEL DI Chip select input of serial control interface (active low) 4 PB1 DI Push-button input #1 (active low with internal pull-up resistor) 5 PB2 DI Push-button input #2 (active low with internal pull-up resistor) 6 PB3 DI Push-button input #3 (active low with internal pull-up resistor) 7 PB4 DI Push-button input #4 (active low with internal pull-up resistor) 8 CLK DO Microcontroller clock (1 MHz-10 MHz) 9 XTL AIO Crystal connection (other terminal of crystal to VSS) 10 VSS S Ground reference 11 MOD DI Connect to logic high (microcontroller mode) 12 RFN AO Power amplifier output (open collector) 13 RFP AO Power amplifier output (open collector) 14 nIRQ DO Interrupt request output for microcontroller (active low) and status read output 15 VDD S Positive supply voltage 16 FSK DI Serial data input for FSK modulation |
Nº de peça semelhante - SI4021 |
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Descrição semelhante - SI4021 |
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