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L9949 Scheda tecnica(PDF) 17 Page - STMicroelectronics |
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L9949 Scheda tecnica(HTML) 17 Page - STMicroelectronics |
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17 / 20 page ![]() 17/20 L9949 Figure 9. SPI-interface - Input Timing Figure 10. Data Out Valid Data Delay Time and Valid Time Figure 11. SPI-Interface - Data Out Enable and Disable Time 0.8 V CC 0.8 V CC 0.8 V CC 0.2 V CC 0.2 V CC 0.2 V CC Valid Valid t set CSN CSN CLK DI t CLKH t set CLK t CLKL t hold DI t set DI 0.8 V CC 0.7 V CC 0.7 V CC 0.2 V CC 0.3 V CC 0.3 V CC t f in CLK t r in DO (low to high) DO (high to low) 0.5 V CC t r DO t f DO t d DO CSN t f in r in t DO pull-up load to VCC CL =100pF en DO tri L t t dis DO L tri 50% 0.8 V CC 0.2 V CC 50% 50% DO pull-down load to GND CL =100pF en DO tri H t t dis DO H tri |
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