Rainbow-electronics ATtiny861_V Bedienungsanleitung PDF herunterladen (Seite 200)

200

2588B–AVR–11/06

ATtiny261/461/861

Figure 24-10. Idle Supply Current vs. V

(Internal RC Oscillator, 128 kHz)

24.3 Supply Current of I/O modules

The tables and formulas below can be used to calculate the additional current consumption for

the different I/O modules in Active and Idle mode. The enabling or disabling of the I/O modules

are controlled by the Power Reduction Register. See ”PRR – Power Reduction Register” on

page 37 for details.

It is possible to calculate the typical current consumption based on the numbers from Table 24-1

for other V

and frequency settings than listed in Table 24-2.

IDLE SUPPLY CURRENT vs. V

INTERNAL RC OSCILLATOR, 128 kHz

85 ˚C

25 ˚C

-40 ˚C

0,02

0,04

0,06

0,08

0,1

0,12

0,14

0,16

0,18

0,2

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

(V)

(mA)

Table 24-1. Additional Current Consumption for the different I/O modules (absolute values)

PRR bit Typical numbers

= 2V, F = 1MHz V

= 3V, F = 4MHz V

= 5V, F = 8MHz

PRTIM1 65 uA 423 uA 1787 uA

PRTIM0 7 uA 39 uA 165 uA

PRUSI 5 uA 25 uA 457 uA

PRADC 18 uA 111 uA 102 uA

Table 24-2. Additional Current Consumption (percentage) in Active and Idle mode

PRR bit

Additional Current consumption

compared to Active with external

clock (see Figure 24-1 on page

195 and Figure 24-2 on page 196)

Additional Current consumption

compared to Idle with external

clock (see Figure 24-6 on page

198 and Figure 24-7 on page 198)

PRTIM1 26.9 % 103.7 %

PRTIM0 2.6 % 10.0 %

PRUSI 1.7 % 6.5 %

PRADC 7.1 % 27.3 %

1 2 ... 195 196 197 198 199 200 201 202 203 204 205 ... 235 236

Kommentare zu diesen Handbüchern

Keine Kommentare

Rainbow-electronics ATtiny861_V Bedienungsanleitung Seite 200

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Sensoren Rainbow-electronics ATtiny861_V