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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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STR91XF 데이터시트(PDF) 50 Page - STMicroelectronics |
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STR91XF 데이터시트(HTML) 50 Page - STMicroelectronics |
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50 / 73 page  Electrical characteristics STR91xF 50/73 Table 9. AC electrical characteristics 6.6 RESET_INn and power-on-reset characteristics VDDQ = 2.7 - 3.6V, VDD = 1.65 - 2V, TA = -40 / 85 °C unless otherwise specified. Table 10. RESET_INn and Power-On-Reset Characteristics Symbol Parameter Test Conditions Value Unit Min Typ Max fMSTR CCU Master Clk Output 32.768 96,000 kHz fCPUCLK CPU Core Frequency Executing from SRAM 96 MHz Executing from Flash 96 MHz fPCLK Peripheral Clock for APB 48 MHz fHCLK Peripheral Clock for AHB 96 MHz fOSC Clock Input 4 25 MHz fFMICLK FMI Flash Bus clock (internal clock) 96 MHz fBCLK External Memory Bus clock (internal clock) 66 MHz fRTC RTC Clock 32.768 kHz fEMAC EMAC PHY Clock 25 MHz fUSB USB Clock 48 MHz Symbol Parameter Test Conditions Value Unit Min Typ Max tRINMIN RESET_INn Valid Active Low 100 ns tPOR Power-On-Reset Condition duration VDDQ,VDD ramp time is less than 10ms 10 ms tRSO RESET_OUT Duration (Watchdog reset) one PCLK ns |
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