ATMEGA164PA-AU Atmel, ATMEGA164PA-AU Datasheet - Page 504

• 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

28.7.3
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 28-13. Additional Current Consumption for the different I/O modules (absolute values)
Table 28-14. Additional Current Consumption (percentage) in Active and Idle mode
It is possible to calculate the typical current consumption based on the numbers from
12 on page 478
Calculate the expected current consumption in idle mode with TIMER1, ADC, and SPI enabled
at V
to add 8.0% for the TIMER1, 19.8% for the ADC, and 13.2% for the SPI module. Reading from
Figure 28-301 on page 502
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
PRTIM3
PRTIM2
PRTIM1
PRTIM0
PRADC
PRSPI
PRR bit
PRUSART1
PRUSART0
PRTWI
PRTIM3
PRTIM2
PRTIM1
PRTIM0
PRTADC
PRSPI
CC
= 2.0V and F = 1MHz. From
for details.
for other V
Typical numbers in
Additional Current consumption
compared to Active with external
clock (see
and
V
CC
Figure 28-296 on page
, we find that the idle current consumption is ~0.075 mA at V
= 2V, F = 1 MHz
CC
13.5 µA
3.0 µA
2.9 µA
7.5 µA
4.0 µA
6.0 µA
4.2 µA
1.7 µA
5.7 µA
and frequency settings than listed in
Figure 28-295 on page 499
Table 28-12 on page
0.9%
0.9%
2.3%
1.1%
1.8%
1.2%
0.5%
3.0%
2.0%
499)
V
CC
= 3V, F = 4 MHz
19.2 µA
19.2 µA
49.3 µA
24.7 µA
39.7 µA
26.4 µA
11.6 µA
54.7 µA
40.6 µA
”PRR – Power Reduction Register” on
478, third column, we see that we need
Additional Current consumption
compared to Idle with external clock
(see
Figure 28-301 on page
Figure 28-300 on page 501
Table 28-11 on page
V
15.4%
12.1%
19.8%
13.2%
6.0%
6.0%
7.5%
8.0%
3.6%
CC
= 5V, F = 8 MHz
230.3 µA
105.5 µA
176.3 µA
113.7 µA
212.2 µA
87.7 µA
88.5 µA
54.3 µA
273 µA
502)
Table 28-
CC
478.
= 2.0V
and
504