STM32F072CB datasheet(92/128 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32F072x8 STM32F072xB

92/128

DS9826 Rev 6

6.3.19

Temperature sensor characteristics

6.3.20

VBAT monitoring characteristics

6.3.21

Timer characteristics

The parameters given in the following tables are guaranteed by design.

Refer to Section 6.3.14: I/O port characteristics for details on the input/output alternate

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

Table 62. TS characteristics

Symbol

Parameter

Min

Typ

Max

Unit

TL(1)

VSENSE linearity with temperature

± 1

± 2

°C

Avg_Slope(1)

Average slope

4.0

4.3

4.6

mV/°C

V30

Voltage at 30 °C (± 5 °C)(2)

1.34

1.43

1.52

tSTART(1)

ADC_IN16 buffer startup time

µs

tS_temp(1)

ADC sampling time when reading the

temperature

µs

1. Guaranteed by design, not tested in production.

2. Measured at VDDA = 3.3 V ± 10 mV. The V30 ADC conversion result is stored in the TS_CAL1 byte. Refer to Table 3:

Temperature sensor calibration values.

Table 63. VBAT monitoring characteristics

Symbol

Parameter

Min

Typ

Max

Unit

Resistor bridge for VBAT

-2 x 50

kΩ

Ratio on VBAT measurement

Er(1)

Error on Q

–1

tS_vbat(1)

ADC sampling time when reading the VBAT

µs

1. Guaranteed by design, not tested in production.

Table 64. TIMx characteristics

Symbol

Parameter

Conditions

Min

Typ

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

tMAX_COUNT

16-bit timer maximum

period

216

tTIMxCLK

fTIMxCLK = 48 MHz

1365

µs

32-bit counter

maximum period

232

tTIMxCLK

fTIMxCLK = 48 MHz

89.48

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