ATMEGA164PA-AU Atmel, ATMEGA164PA-AU Datasheet - Page 400

• Manufacturer Part Number: ATMEGA164PA-AU
• Description: MCU AVR 16KB FLASH 20MHZ 44TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA164PA-AU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K 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: 44-TQFP, 44-VQFP
• Cpu Family: ATmega
• Device Core: AVR
• Device Core Size: 8b
• Frequency (max): 20MHz
• Interface Type: 2-Wire/SPI/USART
• Total Internal Ram Size: 1KB
• # I/os (max): 32
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 2.5/3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 1.8V
• On-chip Adc: 8-chx10-bit
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 44
• Package Type: TQFP
• Package: 44TQFP
• Family Name: ATmega
• Maximum Speed: 20 MHz
• Operating Supply Voltage: 2.5|3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

28.3.3
Example
8272A–AVR–01/10
Supply Current of I/O modules
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 49
Table 28-5.
Table 28-6.
It is possible to calculate the typical current consumption based on the numbers from
on page 426
Calculate the expected current consumption in idle mode with TIMER1, ADC, and SPI enabled
at V
to add 6.0% for the TIMER1, 14.8% for the ADC, and 10.3% for the SPI module. Reading from
Figure 28-153 on page
2.0V and F = 1MHz. The total current consumption in idle mode with TIMER1, ADC, and SPI
enabled, gives:
164A/164PA/324A/324PA/644A/644PA/1284/1284P
PRR bit
PRUSART1
PRUSART0
PRTWI
PRTIM2
PRTIM1
PRTIM0
PRADC
PRSPI
PRR bit
PRUSART1
PRUSART0
PRTWI
PRTIM2
PRTIM1
PRTIM0
PRADC
PRSPI
CC
= 2.0V and F = 1MHz. From
for details.
for other V
Additional Current Consumption for the different I/O modules (absolute values)
Additional Current Consumption (percentage) in Active and Idle mode
Typical numbers in
Additional Current consumption
compared to Active with external
clock (see
421
421)
V
CC
I
CC
and
= 2V, F = 1 MHz
CC
total
423, we find that the idle current consumption is ~0.078 mA at V
11.8 µA
3.1 µA
3.0 µA
6.4 µA
5.6 µA
3.6 µA
1.7 µA
5.3 µA
Figure 28-149 on page
and frequency settings than listed in
≈
Figure 28-148 on page
0.078 mA (1+ 0.060 + 0.148 + 0.103)
1.4%
1.4%
3.0%
2.5%
1.6%
0.7%
4.2%
2.7%
Table 28-8 on page
⋅
V
CC
= 3V, F = 4 MHz
21.5 µA
21.0 µA
45.7 µA
37.7 µA
24.8 µA
10.4 µA
59.2 µA
40.1 µA
Additional Current consumption
compared to Idle with external
clock (see
423
424)
”PRR – Power Reduction Register” on
426, third column, we see that we need
and
Figure 28-154 on page
Table 28-7 on page
≈
Figure 28-153 on page
0.102 mA
V
11.3%
14.8%
10.3%
5.3%
5.2%
9.1%
6.0%
2.5%
CC
= 5V, F = 8 MHz
100.0 µA
214.5 µA
165.8 µA
107.0 µA
257.0 µA
206.8 µA
98.2 µA
43.2 µA
426.
Table 28-8
CC
400
=