ATTINY85-20PI Atmel, ATTINY85-20PI Datasheet - Page 183

• Manufacturer Part Number: ATTINY85-20PI
• Description: IC AVR MCU 8K 20MHZ 8DIP
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY85-20PI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 6
• Program Memory Size: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

22.3.1
22.4
2586M–AVR–07/10
Power-down Supply Current
Example
It is possible to calculate the typical current consumption based on the numbers from
for other V
Calculate the expected current consumption in idle mode with USI, TIMER0, and ADC enabled
at V
to add 10% for the USI, 25% for the ADC, and 10% for the TIMER0 module. Reading from
22-9
total current consumption in idle mode with USI, TIMER0, and ADC enabled, gives:
Figure 22-11. Power-down Supply Current vs. V
CC
, we find that the idle current consumption is ~0,18 mA at V
= 2.0V and f = 1 MHz. From
CC
1.4
1.2
0.8
0.6
0.4
0.2
1
0
and frequency settings that listed in
1.5
2
I
CC
=
POWER-DOWN SUPPLY CURRENT vs. V
0 18mA
2.5
,
WATCHDOG TIMER DISABLED
Table 22-2 on page
×
3
(
1
+
0 1 ,
V
CC
3.5
+
(V)
CC
Table
0 25
,
(Watchdog Timer Disabled)
+
4
22-1.
182, third column, we see that we need
0 1 ,
)
≈
4.5
0 261mA
,
CC
= 2.0V and f = 1 MHz. The
CC
5
5.5
-40 ˚C
85 ˚C
25 ˚C
Table 22-2
Figure
183