STM32H523VCU6 datasheet(120/228 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32H523xx

120/228

DS14540 Rev 1

4 MHz low-power internal RC oscillator (CSI)

∆VDD(HSI)

Frequency drift with VDD

(reference is 3.3 V)

VDD= 1.71 to 3.6 V

-0.12

0.03

∆TEMP(HSI)

Frequency drift over

temperature (reference

is 64 MHz)

TJ= -20 to 105 °C

-1(4)

TJ= -40 to 130 °C

-2(4)

-1(4)

tsu(HSI)

Start-up time

1.4

2.0

μs

tstab(HSI) Stabilization time

At 1% of target frequency

μs

At 1% of target frequency

IDD(HSI)

Power consumption

300

450

μA

1. Specified by design - Not tested in production, unless otherwise specified.

2. Calibrated during manufacturing tests.

3. Trimming value of HSICAL[8:0.]

4. Guaranteed by characterization - Not tested n production.

Table 43. HSI oscillator characteristics(1) (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Table 44. CSI oscillator characteristics(1)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fCSI

Frequency

VDD = 3.3 V, TJ = 30 °C

3.96(2)

44.04(2)

MHz

TRIM

User trimming step

Trimming is not a multiple of 16

0.40

0.75

Trimming is not a multiple of 32

-4.75

-2.75

0.75

Other trimmings are a multiple of 32

(not including multiples of 64 and 128)

-0.43

0.00

0.75

DuCy(CSI)

Duty cycle

∆TEMP(CSI)

Frequency drift over

temperature

TJ= 0 to 85 °C

-3.7(3)

-4.5(3)

TJ= -40 to TJ = 130 °C

-11(3)

-7.5(3)

∆VDD(CSI)

Frequency drift over VDD VDD= 1.71 to 3.6 V

-0.06

0.06

tsu(CSI)

Start-up time

μs

tstab(CSI)

Stabilization time

(to reach ± 3% of fCSI)

cycle

IDD(CSI)

Power consumption

μA

1. Specified by design - Not tested in production, unless otherwise specified.

2. Calibrated during manufacturing tests.

3. Evaluated by characterization - Not tested in production.

STM32H523VCU6 Datasheet(PDF) 120 Page - STMicroelectronics

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