ATMEGA164PA-MCH Atmel, ATMEGA164PA-MCH Datasheet - Page 478
ATMEGA164PA-MCH
Manufacturer Part Number
ATMEGA164PA-MCH
Description
MCU AVR 16KB FLASH 20MHZ 44-VQFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA164PA-MCH
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-VQFN Exposed Pad
For Use With
ATSTK600-TQFP44 - STK600 SOCKET/ADAPTER 44-TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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28.6.3
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 28-11. Additional Current Consumption for the different I/O modules (absolute values)
Table 28-12. 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 9.1% for the TIMER1, 17.9% for the ADC, and 12.4% for the SPI module. Reading from
Figure 28-251 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
Typical numbers in
Additional Current consumption
compared to Active with external
clock (see
473
473)
V
CC
I
CC
and
= 2V, F = 1 MHz
total
475, we find that the idle current consumption is ~0.078 mA at V
16.2 µA
5.9 µA
6.7 µA
9.5 µA
6.6 µA
3.1 µA
9.3 µA
12 µA
Figure 28-247 on page
CC
≈
Figure 28-246 on page
0.070 mA (1+ 0.091 + 0.179 + 0.124)
and frequency settings than listed in
3.65%
1.6%
1.8%
2.6%
3.3%
1.9%
0.9%
2.5%
Table 28-12 on page
⋅
V
CC
= 3V, F = 4 MHz
37.3 µA
58.9 µA
74.3 µA
41.4 µA
19.5 µA
75.4 µA
56.6 µA
40 µA
Additional Current consumption
compared to Idle with external
clock (see
475
476)
”PRR – Power Reduction Register” on
478, third column, we see that we need
and
Figure 28-252 on page
≈
Figure 28-251 on page
0.091 mA
V
Table 28-11 on page
12.9%
16.3%
17.9%
12.4%
8.1%
8.8%
9.1%
4.3%
CC
= 5V, F = 8 MHz
157.1 µA
239.5 µA
297.6 µA
170.3 µA
301.4 µA
226.3 µA
78.6 µA
149 µA
Table 28-
478.
CC
478
=
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