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AN4488 数据表(PDF) 9 Page - STMicroelectronics

部件名 AN4488
功能描述  Getting started with STM32F4xxxx MCU hardware development
PDF  44 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

AN4488 数据表(HTML) 9 Page - STMicroelectronics

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AN4488
Power supplies
43
Figure 1. Power supply scheme
1. Optional. If a separate, external reference voltage is connected on VREF+, the two capacitors (100 nF and
1 µF) must be connected.
2. VCAP2 is not available on all packages. In that case, a single 4.7 µF (ESR < 1Ω) is connected to VCAP1
3. VREF+ is either connected to VREF+ or to VDDA (depending on package).
4. VREF- is either connected to VREF- or to VSSA (depending on package).
5. N is the number of VDD and VSS inputs.
6. Refer to section “Voltage regulator” in datasheet (Table 1) to connect BYPASS_REG and PDR_ON pins.



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