STM32L010R8 datasheet(76/92 Pages) STMICROELECTRONICS

76 / 92 page

Electrical characteristics

STM32L010K8 STM32L010R8

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DS12325 Rev 3

Figure 24. Typical connection diagram using the ADC

1. Refer to Table 52: ADC characteristics for the values of RAIN, RADC and CADC.

2. Cparasitic represents the capacitance of the PCB (dependent on soldering and PCB layout quality) plus the pad capacitance

(roughly 7 pF). A high Cparasitic value downgrades conversion accuracy. To remedy this, fADC must be reduced.

6.3.16

Timer characteristics

TIM timer characteristics

The parameters given in the Table 55 are guaranteed by design.

Refer to Section 6.3.13: I/O port characteristics for details on the input/output alternate

function characteristics (output compare, input capture, external clock, PWM output).

MSv34712V1

VDDA

AINx

IL±50nA

RAIN(1)

Cparasitic

VAIN

RADC

12-bit

converter

CADC

Sample and hold ADC

converter

Table 55. TIMx(1) characteristics

Symbol

Parameter

Conditions

Min

Max

Unit

tres(TIM)

Timer resolution time

-1

tTIMxCLK

fTIMxCLK = 32 MHz

31.25

fEXT

Timer external clock frequency on

CH1 to CH4

-0

fTIMxCLK/2

MHz

fTIMxCLK = 32 MHz

MHz

ResTIM

Timer resolution

bit

tCOUNTER

16-bit counter clock period when

internal clock is selected (timer’s

prescaler disabled)

65536

tTIMxCLK

fTIMxCLK = 32 MHz

0.0312

2048

µs

tMAX_COUNT Maximum possible count

65536 × 65536

tTIMxCLK

fTIMxCLK = 32 MHz

134.2

1. TIMx is used as a general term to refer to the TIM2, TIM21 and TIM22 timers.

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