ATTINY24A-SSUR Atmel, ATTINY24A-SSUR Datasheet - Page 183

• Manufacturer Part Number: ATTINY24A-SSUR
• Description: MCU AVR 2KB FLASH 20MHZ 14SOIC
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY24A-SSUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 12
• 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): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Package: 14SOIC W
• Device Core: AVR
• Family Name: ATtiny
• Maximum Speed: 20 MHz
• Operating Supply Voltage: 2.5|3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 12
• Interface Type: SPI/USI
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

21.1.1
21.2
21.2.1
8183C–AVR–03/11
ATtiny24A
Example
Current Consumption in Active Mode
Table 21-2.
Calculate the expected current consumption in idle mode with USI, TIMER0, and ADC enabled
at V
to add 5% for the USI, 10% for TIMER0, and 20% for the ADC. Reading from
page
total current consumption in idle mode with USI, TIMER0, and ADC enabled is therefore:
Figure 21-1.
I
CCTOT
PRR bit
PRTIM1
PRTIM0
PRUSI
PRADC
CC
213, we find that current consumption in idle mode at 2V and 1 MHz is about 0.04 mA. The
0,8
0,6
0,4
0,2
≈
= 2.0V and f = 1 MHz. From
1
0
0
0,05mA
Additional Current Consumption (percentage) in Active and Idle mode
0,1
×
Active Supply Current vs. Low Frequency
0.1 - 1.0 MHz, PRR = 0xFF
(
1
Current consumption additional to
active mode with external clock
(see
+
0,05
0,2
Figure 21-56
+
0,10
0,3
+
0,20
1 %
3 %
1 %
5 %
Table 21-2 on page
and
)
0,4
≈
Figure
0,06mA
Frequency (MHz)
0,5
21-57)
0,6
183, third column, we see that we need
Current consumption additional to
idle mode with external clock
(see
ATtiny24A/44A/84A
0,7
Figure 21-61
0,8
10 %
20 %
5 %
5 %
and
0,9
Figure 21-61 on
Figure
21-62)
1
5.5 V
5.0 V
4.5 V
4.0 V
3.3 V
2.7 V
1.8 V
183