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STM32F446ME データシート(PDF) 146 Page - STMicroelectronics |
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STM32F446ME データシート(HTML) 146 Page - STMicroelectronics |
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146 / 201 page ![]() Electrical characteristics STM32F446xC/E 146/201 DocID027107 Rev 5 General PCB design guidelines Power supply decoupling should be performed as shown in Figure 47 or Figure 48, depending on whether VREF+ is connected to VDDA or not. The 10 nF capacitors should be ceramic (good quality). They should be placed them as close as possible to the chip. Figure 47. Power supply and reference decoupling (VREF+ not connected to VDDA) 1. VREF+ and VREF– inputs are both available on UFBGA144. VREF+ is also available on LQFP100, LQFP144, and WLCSP81. When VREF+ and VREF– are not available, they are internally connected to VDDA and VSSA. |
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