STM32F051K6 datasheet(83/104 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32F051x

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Doc ID 022265 Rev 3

6.3.18

Temperature sensor characteristics

6.3.19

VBAT monitoring characteristics

6.3.20

Timer characteristics

The parameters given in Table 61 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).

Table 59.

TS characteristics

Symbol

Parameter

Min

Typ

Max

Unit

(1)

Guaranteed by design, not tested in production.

VSENSE linearity with temperature

±1

±2°C

Avg_Slope(1) Average slope

4.0

4.3

4.6

mV/°C

V25

Voltage at 25 °C

1.34

1.43

1.52

tSTART

(1)

Startup time

µs

TS_temp

(1)(2)

Shortest sampling time can be determined in the application by multiple iterations.

ADC sampling time when reading the

temperature

17.1

µs

Table 60.

VBAT monitoring characteristics

Symbol

Parameter

Min

Typ

Max

Unit

Resistor bridge for VBAT

-50-

Ratio on VBAT measurement

Er(1)

Guaranteed by design, not tested in production.

Error on Q

–1

TS_vbat

(1)(2)

Shortest sampling time can be determined in the application by multiple iterations.

ADC sampling time when reading the VBAT

1mV accuracy

µs

Table 61.

TIMx(1) characteristics

Symbol

Parameter

Conditions

Min

Max

Unit

tres(TIM)

Timer resolution time

tTIMxCLK

fTIMxCLK = 48 MHz

20.8

fEXT

Timer external clock

frequency on CH1 to CH4

fTIMxCLK/2

MHz

fTIMxCLK = 48 MHz

MHz

ResTIM

Timer resolution

TIMx (except TIM2)

bit

TIM2

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