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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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ST92141 Fiches technique(PDF) 72 Page - STMicroelectronics |
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ST92141 Fiches technique(HTML) 72 Page - STMicroelectronics |
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72 / 179 page  72/179 ST92141 - RESET AND CLOCK CONTROL UNIT (RCCU) Figure 32. RCCU Timing during STOP (CK_AF System Clock) Figure 33. Low Power WFI Mode with a Stopped Quartz Oscillator STOP Xtal clock request (*) 20478 x TXtal(**) 4 xTsys Quartz start-up Exit from STOP 10239*CLOCK2 Acknowledged CK_AF clock (*) from WUIMU INTCLK RESET CK_AF selected CKAF_SEL<-1 (**) +/- 1 TXtal INTCLK WFI state Multiplier clock Xtal clock Interrupt Xtal’s restart time PLL Lock-in time Tsys=2 xTXtal PLLl With: DIV2=1 CK_AF clock (Tsys =16* TCK_AF) XTSTOP<-0 CSU_CKSEL<-1 CKAF_SEL<-0 PLL (Tsys = TCK_AF) 1 |
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