ATMEGA164P-20PQ Atmel, ATMEGA164P-20PQ Datasheet - Page 393
![MCU AVR 16K FLASH 20MHZ 40-PDIP](/photos/6/70/67049/453-40-dip_sml.jpg)
ATMEGA164P-20PQ
Manufacturer Part Number
ATMEGA164P-20PQ
Description
MCU AVR 16K FLASH 20MHZ 40-PDIP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA164P-20PQ
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)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
For Use With
ATSTK600-TQFP44 - STK600 SOCKET/ADAPTER 44-TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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26.3.3
Example
8011O–AVR–07/10
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 48
Table 26-5.
Table 26-6.
It is possible to calculate the typical current consumption based on the numbers from
on page 393
Calculate the expected current consumption in idle mode with TIMER1, ADC, and SPI enabled
at V
to add 8.9% for the TIMER1, 17.2% for the ADC, and 12.3% for the SPI module. Reading from
Figure 26-100 on page
and F = 1 MHz. The total current consumption in idle mode with TIMER1, ADC, and SPI
enabled, gives:
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 = 1 MHz. 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
Additional Current consumption
compared to Active with external
clock (see
388
388)
V
CC
I
and
CC
= 2V, F = 1 MHz
CC
390, we find that the idle current consumption is ~0.1 mA at V
total
11.5 µA
14.5 µA
5.8 µA
6.5 µA
9.4 µA
5.9 µA
3.3 µA
8.9 µA
Figure 26-96 on page
and frequency settings than listed in
≈
Figure 26-95 on page
0.1 mA (1 + 0.089 + 0.172 + 0.123)
1.6%
1.8%
2.6%
3.3%
1.8%
0.9%
3.5%
2.5%
Table 26-6 on page
⋅
V
CC
= 3V, F = 4 MHz
37.7 µA
40.5 µA
59.7 µA
75.0 µA
41.5 µA
19.7 µA
73.8 µA
56.7 µA
ATmega164P/324P/644P
Additional Current consumption
compared to Idle with external
clock (see
390
391)
”PRR – Power Reduction Register” on
393, third column, we see that we need
and
Figure 26-101 on page
≈
Table 26-5 on page
Figure 26-100 on page
0.138 mA
V
13.0%
16.1%
17.2%
12.3%
8.1%
8.7%
8.9%
4.0%
CC
= 5V, F = 8 MHz
152.0 µA
154.8 µA
239.3 µA
297.0 µA
171.8 µA
302.7 µA
226.0 µA
78.3 µA
393.
Table 26-6
CC
= 2.0V
393
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