ATTINY261-15MZ Atmel, ATTINY261-15MZ Datasheet - Page 199

• Manufacturer Part Number: ATTINY261-15MZ
• Description: MCU AVR 2K FLASH 15MHZ 32-QFN
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY261-15MZ

• Package / Case: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Speed: 16MHz
• Number Of I /o: 16
• Eeprom Size: 128 x 8
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Program Memory Size: 2KB (2K x 8)
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Connectivity: USI
• Core Size: 8-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

24.3
24.3.1
7753F–AVR–01/11
Supply Current of I/O modules
Example
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
page 38
Table 24-1.
Table 24-2.
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
page
The total current consumption in idle mode with TIMER0, ADC, and USI enabled, gives:
I
CC
PRR bit
PRTIM1
PRTIM0
PRUSI
PRADC
total
CC
PRR bit
PRTIM1
PRTIM0
198, we find that the idle current consumption is ~0,085 mA at V
PRADC
PRUSI
= 2.0V and F = 1MHz. From
for details.
0.085mA
CC
and frequency settings than listed in
Additional Current Consumption for the different I/O modules (absolute values)
Additional Current Consumption (percentage) in Active and Idle mode
1
Typical numbers
65 uA
7 uA
5 uA
18 uA
clock (see
+
compared to Active with external
Additional Current consumption
V
0.10
CC
and
= 2V, F = 1MHz
+
Figure 24-2 on page
0.273
Figure 24-1 on page 197
+
26.9%
ATtiny261/ATtiny461/ATtiny861
2.6%
1.7%
7.1%
Table
0.065
24-2, third column, we see that we need to add 10%
0.122mA
423 uA
39 uA
25 uA
111 uA
198)
V
CC
Table
= 3V, F = 4MHz
“PRR – Power Reduction Register” on
24-2.
compared to Idle with external clock
Additional Current consumption
CC
1787 uA
165 uA
457 uA
102 uA
103.7%
10.0%
27.3%
V
= 2.0V and F=1MHz.
6.5%
CC
= 5V, F = 8MHz
Figure 24-3 on
Table 24-1
199