ATMEGA329P-20MN Atmel, ATMEGA329P-20MN Datasheet - Page 394

• 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

29.2.11
8021G–AVR–03/11
Internal Oscillator Speed
Figure 29-98. ATmega3290P: Watchdog Oscillator Frequency vs. V
Figure 29-99. ATmega3290P: Watchdog Oscillator Frequency vs. Temperature
170
165
160
155
150
145
140
1300
1250
1200
1150
1100
1050
1000
-60
1.5
-40
2
-20
2.5
0
3
Temperature (°C)
V
CC
3.5
20
(V)
4
40
ATmega329P/3290P
4.5
60
CC
5
80
5.5
-45 °C
25 °C
85 °C
100
5.5 V
4.0 V
3.3 V
2.7 V
2.1 V
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