ATMEGA329P-20MU Atmel, ATMEGA329P-20MU Datasheet - Page 348

• Manufacturer Part Number: ATMEGA329P-20MU
• Description: IC MCU 32K 4X25 LCD CTRL 64-QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA329P-20MU

• 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
• Processor Series: ATMEGA32x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: SPI, USART, USI
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 54
• 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
• For Use With: ATSTK600-TQFP64 - STK600 SOCKET/ADAPTER 64-TQFP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRISP2 - PROGRAMMER AVR IN SYSTEMATJTAGICE2 - AVR ON-CHIP D-BUG SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ATMEGA329P-16MU; ATMEGA329P-16MU

29.1.4
29.1.5
8021G–AVR–03/11
Example
Power-down Supply Current
It is possible to calculate the typical current consumption based on the numbers from
for other V
Calculate the expected current consumption in idle mode with USART0, TIMER1, and SPI
enabled at V
USART0, 5.9% for the SPI, and 2.6% for the TIMER1 module. From
the idle current consumption is ~0.21mA at V
sumption in idle mode with USART0, TIMER1, and SPI enabled, gives:
Figure 29-10. ATmega329P: Power-down Supply Current vs. V
I
CC
total
≈
2.5
1.5
0.5
0.21mA
3
2
1
0
1.5
CC
and frequency settings than listed in
CC
•
= 3.0V and F = 1MHz.
(
1
2
+
0.049
+
2.5
0.059
+
0.026
3
)
Table 29-2
≈
0.24mA
V
CC
CC
3.5
(V)
= 3.0V and F = 1MHz. The total current con-
Table
shows that we need to add 4.9% for the
29-1.
4
ATmega329P/3290P
CC
4.5
(Watchdog Timer Disabled)
Figure
5
29-6, we find that
5.5
Table 29-2
-40 °C
85 °C
25 °C
348