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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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STM32F103VFT6 데이터시트(PDF) 13 Page - STMicroelectronics |
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STM32F103VFT6 데이터시트(HTML) 13 Page - STMicroelectronics |
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13 / 120 page  STM32F103xF, STM32F103xG Description Doc ID 16554 Rev 3 13/120 Figure 2. Clock tree 1. When the HSI is used as a PLL clock input, the maximum system clock frequency that can be achieved is 64 MHz. 2. For the USB function to be available, both HSE and PLL must be enabled, with the USBCLK at 48 MHz. 3. To have an ADC conversion time of 1 µs, APB2 must be at 14 MHz, 28 MHz or 56 MHz. HSE OSC 4-16 MHz OSC_IN OSC_OUT OSC32_IN OSC32_OUT LSE OSC 32.768 kHz HSI RC 8 MHz LSI RC 40 kHz to Independent Watchdog (IWDG) PLL x2, x3, x4 PLLMUL HSE = High-speed external clock signal LSE = LSI = HSI = Legend: MCO Clock Output Main PLLXTPRE /2 ..., x16 AHB Prescaler /1, 2..512 /2 PLLCLK HSI HSE APB1 Prescaler /1, 2, 4, 8, 16 ADC Prescaler /2, 4, 6, 8 ADCCLK PCLK1 HCLK PLLCLK to AHB bus, core, memory and DMA USBCLK to USB interface USB Prescaler /1, 1.5 to ADC1, 2 or 3 LSE LSI HSI /128 /2 HSI HSE peripherals to APB1 Peripheral Clock Enable Enable Peripheral Clock APB2 Prescaler /1, 2, 4, 8, 16 PCLK2 TIM1, 8, 9, 10, 11 to TIM1/8 and TIM9/10/11 peripherals to APB2 Peripheral Clock Enable Enable Peripheral Clock 48 MHz 72 MHz max 72 MHz 72 MHz max 36 MHz max to RTC PLLSRC SW MCO CSS to Cortex System timer /8 Clock Enable SYSCLK max RTCCLK RTCSEL[1:0] TIMxCLK TIMxCLK IWDGCLK SYSCLK FCLK Cortex free running clock /2 TIM2,3,4,5,12,13,14,6,7 to TIM2/3/4/5/12/13/14 and TIM6/7 To SDIO AHB interface Peripheral clock enable HCLK/2 to FSMC FSMCCLK to SDIO Peripheral clock enable Peripheral clock enable to I2S3 to I2S2 Peripheral clock enable Peripheral clock enable I2S3CLK I2S2CLK SDIOCLK ai17354 If (APB1 prescaler =1) x1 else x2 If (APB2 prescaler =1) x1 else x2 High-speed internal clock signal Low-speed internal clock signal Low-speed external clock signal FLITFCLK to Flash programming interface |
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