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STM32G070KB Folha de dados(PDF) 15 Page - STMicroelectronics

Nome de Peças STM32G070KB
Descrição Electrónicos  Arm® Cortex®-M0 32-bit MCU, 128 KB Flash, 36 KB RAM, 4x USART, timers, ADC, comm. I/Fs, 2.0-3.6V
PDF  93 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
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STM32G070KB Folha de dados(HTML) 15 Page - STMicroelectronics

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DS12766 Rev 2
15/93
STM32G070CB/KB/RB
Functional overview
28
VREF+ is delivered through VREF+ pin. On packages without VREF+ pin, VREF+ is
internally connected with VDD, and the internal voltage reference buffer must be kept
disabled (refer to datasheets for package pinout description).
VCORE
An embedded linear voltage regulator is used to supply the VCORE internal digital
power. VCORE is the power supply for digital peripherals, SRAM and Flash memory.
The Flash memory is also supplied with VDD.
Figure 2. Power supply overview
3.7.2
Power supply supervisor
The device has an integrated power-on/power-down (POR/PDR) reset active in all power
modes and ensuring proper operation upon power-on and power-down. It maintains the
device in reset when the supply voltage is below VPOR/PDR threshold, without the need for
an external reset circuit.
3.7.3
Voltage regulator
Two embedded linear voltage regulators, main regulator (MR) and low-power regulator
(LPR), supply most of digital circuitry in the device.
The MR is used in Run and Sleep modes. The LPR is used in Low-power run, Low-power
sleep and Stop modes.
In Standby mode, both regulators are powered down and their outputs set in high-
impedance state, such as to bring their current consumption close to zero.
MSv47920V1
VDDA domain
RTC domain
A/D converter
Standby circuitry
(Wakeup, IWDG)
Voltage
regulator
Core
SRAM
Digital
peripherals
Low-voltage
detector
LSE crystal 32.768 kHz osc
BKP registers
RCC BDCR register
RTC and TAMP
I/O ring
VCORE domain
Temp. sensor
Reset block
PLL, HSI
Flash memory
VDDIO1
VREF+
VDD domain
VCORE
VSS/VSSA
VDD/VDDA
VBAT
VDDA
VREF+
VSSA
VSS
VDD
VDDIO1 domain



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