APM32F003F4P6-R datasheet(15/56 Pages) GEEHY

No. de pieza	APM32F003F4P6-R

Descripción Electrónicos	Arm® Cortex®-M0 based 32-bit MCU

PDF	56 Pages

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Fabricante Electrónico	GEEHY [Geehy Semiconductor Co., Ltd.]

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Page 14

4.5.1.

Clock tree

Figure 5 Clock tree of APM32F003x4x6 series

HXT OSC

1-24MHz

LIRC

128KHz

HIRC RC

48MHz

HIRCDIV[2]

/1,3

HIRCDIV[1:0]

/1,2,4,8

CSS

IWDTCLK

WUPT

HXT clock

HIRC

HXT

LIRC

fMASTER

fCPU

/1,2,4,8,16

,32,64

HIRCDIV

Peripheral

clock

CCO

CPU

prescale

fCPU

OSC_OUT

OSC_IN

fMASTER

MCC[7:0]

Note: the counter of WUPT is not provided by fMASTER, so even if the clock of the

Power management

4.6.1.

Power supply scheme

Table 5 Power supply scheme

Name

Abbreviation of name

Voltage range

Main power supply

VDD/VSS

2.4~5.5V

The VDD/VSS pin can supply power to the internal main voltage regulator (MVR)

and the internal low power voltage regulator (LPVR), and the outputs of these

two regulators together provide 1.5V power supply to the core, Flash and

SRAM.

4.6.2.

Power supply monitor

Two circuits of power-on reset (POR) and power-down reset (PDR), are

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