GD32H757VMT7 datasheet(102/151 Pages) GIGADEVICE

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GD32H757xx Datasheet

101

Table 4-21. Low power internal clock (LPIRC4M) characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fLPIRC4M

High Speed Internal

Oscillator (LPIRC4M)

frequency

VDD = 3.3 V

—

MHz

ACCLPIRC4M

LPIRC4M oscillator

Frequency accuracy,

Factory-trimmed

VDD = VDDA = 3.3 V,

TJ = -40 °C ~ +85 °C for

grade 6 devices (1)

—

-0.96~

+1.02

—

VDD = VDDA = 3.3 V,

TJ = -40 °C ~ +105 °C for

grade 7 devices (1)

—

-1.06~

+1.02

—

VDD = VDDA = 3.3 V,

TJ = 25 °C

3.96

—

4.04

MHz

LPIRC4M oscillator

Frequency accuracy,

User trimming step(1)

—

0.4

—

DLPIRC4M(2)

LPIRC4M oscillator duty

cycle

VDD = VDDA = 3.3 V

IDDALPIRC4M(1)

LPIRC4M oscillator

operating current

—

μA

tSULPIRC4M(1)

LPIRC4M oscillator

startup time

—

1.64

—

μs

(1)

Value guaranteed by characterization, not 100% tested in production.

(2)

Value guaranteed by design, not 100% tested in production.

Table 4-22. Low speed internal clock (IRC32K) characteristics

Symbol

Parameter

Conditions

Min

Typ

Max Unit

fIRC32K

Low Speed Internal oscillator

(IRC32K) frequency

VDD = VDDA = 3.3 V,

TJ = -40 °C ~ +85 °C

32(1)

kHz

tSUIRC32K(2)

IRC32K oscillator startup

time

—

50.72

—

μs

(1)

Value guaranteed by design, not 100% tested in production.

(2)

Value guaranteed by characterization, not 100% tested in production.

4.9.

PLL characteristics

Table 4-23. PLL0/1/2 characteristics (wide VCO frequency range)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fPLLIN(1)

PLL input clock frequency

—

MHz

PLL input clock duty cycle

—

fVCO(1)

PLL VCO output clock

frequency

—

100

—

850

MHz

tLOCK(2)

PLL lock time

—

200

500

μs

IDD(2)

Current consumption on

VCO freq = 800 MHz

—

1.5

—

GD32H757VMT7 Datasheet(PDF) 102 Page - GigaDevice Semiconductor (Beijing) Inc.

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