ATTINY461-20SUR Atmel, ATTINY461-20SUR Datasheet - Page 198

• Manufacturer Part Number: ATTINY461-20SUR
• Description: MCU AVR 4KB FLASH 20MHZ 20SOIC
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY461-20SUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 16
• Program Memory Size: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

20.1.0.1
20.2
198
Active Supply Current
ATtiny261/461/861
Example
Table 20-2.
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 TIMER0, ADC, and USI enabled
at V
for the TIMER0, 27.3 % for the ADC, and 6.5 % for the USI module. Reading from
on page
The total current consumption in idle mode with TIMER0, ADC, and USI enabled, gives:
Figure 20-1. Active Supply Current vs. Low Frequency (0.1 - 1.0 MHz)
I
CC
PRR bit
PRTIM1
PRTIM0
PRUSI
PRADC
total
CC
≈
1,2
0,8
0,6
0,4
0,2
= 2.0V and F = 1MHz. From
0,085mA
1
0
201, we find that the idle current consumption is ~0,085 mA at V
0
CC
and frequency settings than listed in
Additional Current Consumption (percentage) in Active and Idle mode.
•
0,1
(
Additional Current consumption
compared to Active with external
clock (see
198
1
+
0,10
ACTIVE SUPPLY CURRENT vs. LOW FREQUENCY
and
0,2
Figure 20-2 on page
+
0,273
Figure 20-1 on page
26.9 %
0,3
1.7 %
2.6 %
7.1 %
+
0,065
Table
0,4
)
Frequency (MHz)
≈
0.1 - 1.0 MHZ
20-2, third column, we see that we need to add 10%
0,122mA
199)
0,5
Table
Additional Current consumption
compared to Idle with external
clock (see
201
0,6
20-2.
and
0,7
Figure 20-7 on page
Figure 20-6 on page
103.7 %
10.0 %
27.3 %
6.5 %
0,8
CC
= 2.0V and F=1MHz.
0,9
201)
2588E–AVR–08/10
Figure 20-6
1
Table 20-1
5.5 V
5.0 V
4.5 V
4.0 V
3.3 V
2.7 V
1.8 V