Rainbow-electronics ATtiny861_V Manuel d'utilisateur télécharger pdf (Page 201)

201

2588B–AVR–11/06

ATtiny261/461/861

Example Calculate the expected current consumption in idle mode with TIMER0, ADC, and USI enabled

at V

= 2.0V and F = 1MHz. From Table 24-2, third column, we see that we need to add 10%

for the TIMER0, 27.3 % for the ADC, and 6.5 % for the USI module. Reading from Figure 24-6

on page 198, we find that the idle current consumption is ~0,085 mA at V

= 2.0V and F=1MHz.

The total current consumption in idle mode with TIMER0, ADC, and USI enabled, gives:

24.4 Power-down Supply Current

Figure 24-11. Power-down Supply Current vs. V

(Watchdog Timer Disabled)

Figure 24-12. Power-down Supply Current vs. V

(Watchdog Timer Enabled)

ICCtotal 0,085mA 10,100,2730,065++ +()• 0,122mA≈≈

POWER-DOWN SUPPLY CURRENT vs. V

WATCHDOG TIMER DISABLED

85 ˚C

25 ˚C

-40 ˚C

0,2

0,4

0,6

0,8

1,2

1,4

1,6

1,5 2 2,5 3 3,5 4 4,5 5 5,5

(V)

(uA)

POWER-DOWN SUPPLY CURRENT vs. V

WATCHDOG TIMER ENABLED

85 ˚C

25 ˚C

-40 ˚C

1,5 2 2,5 3 3,5 4 4,5 5 5,5

(V)

(uA)

1 2 ... 196 197 198 199 200 201 202 203 204 205 206 ... 235 236

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Rainbow-electronics ATtiny861_V Manuel d'utilisateur Page 201