STM32L433CB datasheet(167/225 Pages) STMICROELECTRONICS

номер детали	STM32L433CB

подробное описание детали	Ultra-low-power Arm® Cortex®-M4 32-bit MCUFPU, 100DMIPS, up to 256KB Flash, 64KB SRAM, USB FS, LCD, ext. SMPS

PDF	225 Pages

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производитель	STMICROELECTRONICS [STMicroelectronics]

домашняя страница	http://www.st.com

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167 / 225 page

DS11449 Rev 5

167/225

STM32L433xx

Electrical characteristics

193

TW_to_W

Minimal time between two

consecutive writes into the

DAC_DORx register to

guarantee a correct

DAC1_OUTx for a small

variation of the input code

(1 LSB)

DAC_MCR:MODEx[2:0] =

000 or 001

DAC_MCR:MODEx[2:0] =

010 or 011

CL ≤ 50 pF, RL ≥ 5 kΩ

CL ≤ 10 pF

1.4

µs

tSAMP

Sampling time in sample

and hold mode (code

transition between the

lowest input code and the

highest input code when

DAC1_OUTx reaches final

value ±1LSB)

DAC1_OUTx

pin connected

DAC output buffer

ON, CSH = 100 nF

-0.7

3.5

DAC output buffer

OFF, CSH = 100 nF

-10.5

DAC1_OUTx

pin not

connected

(internal

connection

only)

DAC output buffer

OFF

-2

3.5

µs

Ileak

Output leakage current

Sample and hold mode,

DAC1_OUTx pin connected

-(3)

CIint

Internal sample and hold

capacitor

5.2

8.8

tTRIM

Middle code offset trim

time

DAC output buffer ON

µs

Voffset

Middle code offset for 1

trim code step

VREF+ = 3.6 V

1500

µV

VREF+ = 1.8 V

750

IDDA(DAC)

DAC consumption from

VDDA

DAC output

buffer ON

No load, middle

code (0x800)

315

500

µA

No load, worst code

(0xF1C)

450

670

DAC output

buffer OFF

No load, middle

code (0x800)

0.2

Sample and hold mode, CSH =

100 nF

315 ₓ

Ton/(Ton

+Toff)

(4)

670 ₓ

Ton/(Ton

+Toff)

(4)

Table 82. DAC characteristics(1) (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

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