ATMEGA329P-20MN Atmel, ATMEGA329P-20MN Datasheet - Page 347

• Manufacturer Part Number: ATMEGA329P-20MN
• Description: IC MCU AVR 32K 20MHZ 64QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA329P-20MN

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 54
• 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): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-MLF®, 64-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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