STM32G030F6 datasheet(15/94 Pages) STMICROELECTRONICS

15 / 94 page

DS12991 Rev 1

15/94

STM32G030x6/x8

Functional overview

VREF+ is delivered through VREF+ pin. On packages without VREF+ pin, VREF+ is

internally connected with VDD.

•

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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