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STM32F469AE Datasheet(PDF) 31 Page - STMicroelectronics

No. de pieza STM32F469AE
Descripción Electrónicos  Arm® Cortex®-M4 32b MCUFPU, 225DMIPS, up to 2MB Flash/3844KB RAM, USB OTG HS/FS, Ethernet, FMC, dual Quad-SPI, Graphical accelerator, Camera IF, LCD-TFT & MIPI DSI
PDF  220 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32F469AE Datasheet(HTML) 31 Page - STMicroelectronics

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DS11189 Rev 7
31/220
STM32F469xx
Functional overview
47
The VDD specified threshold, below which the device must be maintained under reset, is
1.7 V (see Figure 9).
A comprehensive set of power-saving mode allows to design low-power applications.
When the internal reset is OFF, the following integrated features are no more supported:
The integrated power-on reset (POR) / power-down reset (PDR) circuitry is disabled
The brownout reset (BOR) circuitry must be disabled
The embedded programmable voltage detector (PVD) is disabled
VBAT functionality is no more available and VBAT pin should be connected to VDD.
All packages allow to disable the internal reset through the PDR_ON signal when connected
to VSS.
Figure 9. PDR_ON control with internal reset OFF
1. PDR_ON signal to be kept always low.
2.20
Voltage regulator
The regulator has four operating modes:
Regulator ON
–
Main regulator mode (MR)
–
Low power regulator (LPR)
–
Power-down
Regulator OFF
MS19009V7
V DD
time
PDR = 1.7 V
time
NRST
PDR_ON
PDR_ON
Reset by other source than
power supply supervisor



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