ATTINY261-20SUR Atmel, ATTINY261-20SUR Datasheet - Page 198
ATTINY261-20SUR
Manufacturer Part Number
ATTINY261-20SUR
Description
IC MCU AVR 2K FLASH 20MHZ 20SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY261-20SUR
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
2KB (1K x 16)
Program Memory Type
FLASH
Eeprom Size
128 x 8
Ram Size
128 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
20-SOIC (0.300", 7.50mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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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
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