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STM32U5A5QJ Datasheet(PDF) 38 Page - STMicroelectronics

Part # STM32U5A5QJ
Description  Ultra-low-power Arm® Cortex®-M33 32-bit MCUTrustZone®FPU,240 DMIPS, 4 MB Flash, 2.5 MB SRAM, LTDC, MIPI® DSI, crypto
PDF  382 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32U5A5QJ Datasheet(HTML) 38 Page - STMicroelectronics

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Functional overview
STM32U5Axxx
38/382
DS13543 Rev 1
Figure 3. STM32U5Axxx power supply overview (without SMPS)
In this document, VDDIOx (with x = 1 or 2) refers to the I/O power supply. VDDIO1 is supplied
by VDD. VDDIO2 is the independent power supply for PG[15:2].
During power-up and power-down phases, the following power sequence requirements
must be respected:
•
When VDD is below 1 V, other power supplies (VDDA, VDDIO2, VDDUSB) 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 MCU remains below 1 mJ. This allows external
decoupling capacitors to be discharged with different time constants during the
power-down transient phase.
MSv66058V1
Core
SRAM1
SRAM2
SRAM3
SRAM4
SRAM5
Digital
peripherals
LSE crystal 32kHz oscillator
LSI 32 kHz oscillator
Backup registers
RCC_BDCR and PWR_BDCR1 registers
RTC
TAMP
BKPSRAM
VDDA domain
Backup domain
Standby circuitry
(Wakeup logic, IWDG)
Low-voltage detector
I/O ring
VCORE domain
Temperature sensor
Reset block
3 x PLL
Internal RC oscillators
Flash memory
VDDUSB
VDDIO2
VDDIO1
I/O ring
PG[15:2]
VDDIO2
VDDA
VSSA
VDD11USB
(1)
VSS
VDDIO2 domain
VDD domain
VCORE
VSS
VDD
VBAT
VCAP
A/D converters
Comparators
D/A converters
Operational amplifiers
Voltage reference buffer
USB transceiver
VSS
Note:
1. Only available on specific packages.
LDO regulator



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