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STM32MP157C Folha de dados(PDF) 30 Page - STMicroelectronics

Nome de Peças STM32MP157C
Descrição Electrónicos  Arm® dual Cortex®-A7 800 MHz Cortex®-M4 MPU, 3D GPU, TFT/DSI, 37 comm. interfaces, 29 timers, adv. analog, crypto
PDF  260 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32MP157C Folha de dados(HTML) 30 Page - STMicroelectronics

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Functional overview
STM32MP157C/F
30/260
DS12505 Rev 5
During power-up and power-down phases, the following power sequence requirements
must be respected:
• When VDD is below 1 V, other power supplies (VDDCORE, VDDA, VDDA1V8_REG,
VDDA1V8_DSI, VDDA1V1_REG, VDD3V3_USBHS/FS, VDDQ_DDR) must remain below
VDD + 300 mV.
• When VDD is above 1 V, all power supplies are independent.
During the power-down phase, VDD can temporarily become lower than other supplies only
if the energy provided to the STM32MP157C/F device remains below 1 mJ; this allows
external decoupling capacitors to be discharged with different time constants during the
power- down transient phase.
Figure 2. Power-up/down sequence
1. VDDX refers to any power supply among VDDCORE, VDDA, VDDA1V8_REG, VDDA1V8_DSI, VDDA1V1_REG,
VDD3V3_USBHS/FS, VDDQ_DDR.
MSv47490V1
0.3
1
VBOR0
3.6
Operating mode
Power-on
Power-down
time
V
VDDX
(1)
VDD
Invalid supply area
VDDX < VDD + 300 mV
VDDX independent from VDD



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