ATmega329P Atmel Corporation, ATmega329P Datasheet - Page 347

• Manufacturer Part Number: ATmega329P
• Manufacturer: Atmel Corporation

Specifications of ATmega329P

• Flash (kbytes): 32 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 54
• Ext Interrupts: 17
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Segment Lcd: 100
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 2
• Eeprom (bytes): 1024
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

29.1.3
8021G–AVR–03/11
Supply Current of I/O modules
Figure 29-9. ATmega329P: Idle Supply Current vs. V
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 43
Table 29-1.
Table 29-2.
PRR bit
PRADC
PRUSART0
PRSPI
PRTIM1
PRLCD
PRR bit
PRADC
PRUSART0
PRSPI
PRTIM1
PRLCD
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
for details.
1.5
ATmega329P: Additional Current Consumption for the different I/O modules
(absolute values)
ATmega329P: Additional Current Consumption (percentage) in Active and Idle
mode
19µA
9µA
11µA
5µA
6µA
Additional Current consumption
compared to Active with external
clock
(see
2
V
CC
Figure 29-1
= 2V, F = 1MHz
2.5
4.2%
2.3%
2.7%
1.2%
1.5%
and
3
Figure
102µA
57µA
68µA
30µA
38µA
V
29-3)
CC
3.5
V
(V)
Typical numbers
CC
= 3V, F = 4MHz
CC
”PRR – Power Reduction Register” on
4
ATmega329P/3290P
(Internal RC Oscillator, 1MHz)
Additional Current consumption
compared to Idle with external clock
(see
Figure 29-6
4.5
395µA
240µA
276µA
116µA
150µA
V
9.0%
4.9%
5.9%
2.6%
3.2%
and
CC
5
= 5V, F = 8MHz
Figure
5.5
29-7)
-40 °C
85 °C
25 °C
347