ATMEGA328P-AU Atmel, ATMEGA328P-AU Datasheet - Page 362

MCU AVR 32K FLASH 32TQFP

ATMEGA328P-AU

Manufacturer Part Number
ATMEGA328P-AU
Description
MCU AVR 32K FLASH 32TQFP
Manufacturer
Atmel
Series
AVR® ATmegar

Specifications of ATMEGA328P-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
23
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K 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
32-TQFP, 32-VQFP
Processor Series
ATMEGA32x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
2 KB
Interface Type
2-Wire, SPI, USART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
23
Number Of Timers
3
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Cpu Family
ATmega
Device Core
AVR
Device Core Size
8b
Frequency (max)
20MHz
Total Internal Ram Size
2KB
# I/os (max)
23
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
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
32
Package Type
TQFP
Controller Family/series
AVR MEGA
No. Of I/o's
23
Eeprom Memory Size
1KB
Ram Memory Size
2KB
Cpu Speed
20MHz
Rohs Compliant
Yes
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVR
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
ATMEGA328P-20AU
ATMEGA328P-20AU
Q3790246

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29.2.3
29.2.3.1
8271C–AVR–08/10
ATmega48PA: Supply Current of IO Modules
Example
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
details.
Table 29-3.
Table 29-4.
It is possible to calculate the typical current consumption based on the numbers from
on page 362
Calculate the expected current consumption in idle mode with TIMER1, ADC, and SPI enabled
at V
to add 11.2% for the TIMER1, 22.1% for the ADC, and 17.6% for the SPI module. Reading from
Figure 29-53 on page 359
and F = 1MHz. The total current consumption in idle mode with TIMER1, ADC, and SPI enabled,
gives:
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
PRR bit
PRUSART0
PRTWI
PRTIM2
PRTIM1
PRTIM0
PRSPI
PRADC
PRR bit
PRUSART0
PRTWI
PRTIM2
PRTIM1
PRTIM0
PRSPI
PRADC
I
CC
CC
total
= 2.0V and F = 1MHz. From
0.028 mA (1 + 0.112 + 0.221 + 0.176)
for other V
ATmega48PA: Additional Current Consumption for the different I/O modules
(absolute values)
ATmega48PA: Additional Current Consumption (percentage) in Active and Idle
mode
Typical numbers
2.9 uA
6.0 uA
5.0 uA
3.6 uA
Additional Current consumption
compared to Active with external
clock (see
357
357)
1.8%
3.9%
2.9%
2.1%
0.8%
3.3%
4.2%
1.4 uA
6.1 uA
5.0 uA
V
CC
and
= 2V, F = 1 MHz
CC
, we find that the idle current consumption is ~0.028 mA at V
Figure 29-49 on page
and frequency settings than listed in
Figure 29-48 on page
Table 29-4 on page
20.7 uA
44.8 uA
34.5 uA
24.4 uA
9.5 uA
38.0 uA
47.4 uA
V
0.042 mA
CC
= 3V, F = 4 MHz
”Power Reduction Register” on page 42
Additional Current consumption
compared to Idle with external
clock (see
359
360)
11.4%
20.6%
15.7%
11.2%
4.2%
17.6%
22.1%
362, third column, we see that we need
and
Figure 29-54 on page
Table 29-3 on page
Figure 29-53 on page
97.4 uA
219.7 uA
141.3 uA
107.7 uA
38.4 uA
190.4 uA
244.7 uA
V
CC
= 5V, F = 8 MHz
362.
Table 29-4
CC
= 2.0V
362
for

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