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SI51218 Fiches technique(PDF) 9 Page - Silicon Laboratories |
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SI51218 Fiches technique(HTML) 9 Page - Silicon Laboratories |
9 / 13 page Si51218 Rev. 1.0 9 4. Pin Descriptions—8-Pin TDFN Table 6. Si51218 Pin Descriptions Pin # Name Type Description 1 VDD PWR 2.5 to 3.3 V power supply. 2 XOUT O Crystal output. Leave this pin unconnected (floating) if an external clock input is used. 3 XIN/CLKIN I External crystal and clock input. 4 CLKOUT1/REFOUT1/ FSEL/OE I/O Programmable CLKOUT1 or REFOUT1 output or MultiFunction control input. The frequency at this pin is synthesized by internal PLL if pro- grammed as CLKOUT1. If programmed as REFOUT1, output clock is buffered output of crystal or reference clock input. If programmed as MultiFunction control input, it can be FSEL and OE. 5 VSS GND Ground. 6 CLKOUT2/REFOUT2/ FSEL/OE/PD I/O Programmable CLKOUT2 or REFOUT2 output or MultiFunction control input. The frequency at this pin is synthesized by internal PLL if pro- grammed as CLKOUT2. If programmed as REFOUT2, output clock is buffered output of crystal or reference clock input. If programmed as MultiFunction control input, it can be FSEL,OE and PD. It is power by VDDO (pin 8). 7 CLKOUT3 O Programmable CLKOUT3 output. The frequency at this pin is synthe- sized by internal PLL. It is power by VDDO (pin 8). 8 VDDO PWR 1.8 to 3.3 V output power supply to CLKOUT2/3 (pin6/7). 1 2 3 45 6 7 8 VDD XOUT XIN/CLKIN CLKOUT1/REFOUT1 FSEL/OE VSS CLKOUT2/REFOUT2 FSEL/OE/PD# CLKOUT3 VDDO Si51218 |
Numéro de pièce similaire - SI51218 |
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Description similaire - SI51218 |
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