STM8AF6268ITAX datasheet(56/99 Pages) STMICROELECTRONICS

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Electrical characteristics

STM8AF6246/48/66/68

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DocID14952 Rev 11

Current consumption curves

Figure 10 to Figure 15 show typical current consumption measured with code executing in

RAM.

Table 26. Programming current consumption

Symbol

Parameter

Conditions

Typ

Max

Unit

IDD(PROG) Programming current

VDD = 5 V, -40 °C to 150 °C,

erasing and programming data

or Flash program memory

1.0

1.7

Table 27. Typical peripheral current consumption VDD = 5.0 V(1)

1. Typical values not tested in production. Since the peripherals are powered by an internally regulated,

constant digital supply voltage, the values are similar in the full supply voltage range.

Symbol

Parameter

Typ.

fmaster =

2 MHz

Typ.

fmaster =

16 MHz

Unit

IDD(TIM1)

TIM1 supply current(2)

2. Data based on a differential IDD measurement between no peripheral clocked and a single active

peripheral. This measurement does not include the pad toggling consumption.

0.03

0.23

IDD(TIM2)

TIM2 supply current (2)

0.02

0.12

IDD(TIM3)

TIM3 supply current(2)

0.01

0.1

IDD(TIM4)

TIM4 supply current(2)

0.004

0.03

IDD(LINUART)

LINUART supply current(2)

0.03

0.11

IDD(SPI)

SPI supply current(2)

0.01

0.04

IDD(I2C)

I2C supply current(2)

0.02

0.06

IDD(AWU)

AWU supply current(2)

0.003

0.02

IDD(TOT_DIG)

All digital peripherals on

0.22

IDD(ADC)

ADC supply current when

converting(3)

3. Data based on a differential IDD measurement between reset configuration and continuous A/D

conversions.

0.93

0.95

Figure 10. Typ. IDD(RUN)HSE vs. VDD

@fCPU = 16 MHz, peripheral = on

Figure 11. Typ. IDD(RUN)HSE vs. fCPU

@ VDD = 5.0 V, peripheral = on

2.533.5

44.555.5

DD [V]

25°C

85°C

125°C

fcpu [MHz]

25°C

85°C

125°C

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