ATMEGA328P-20PU Atmel, ATMEGA328P-20PU Datasheet - Page 363

• Manufacturer Part Number: ATMEGA328P-20PU
• Manufacturer: Atmel

Specifications of ATMEGA328P-20PU

• Cpu Family: ATmega
• Device Core: AVR
• Device Core Size: 8b
• Frequency (max): 20MHz
• Interface Type: SPI/TWI/USART
• Program Memory Type: Flash
• Program Memory Size: 32KB
• Total Internal Ram Size: 2KB
• # I/os (max): 23
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• On-chip Adc: 6-chx10-bit
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Through Hole
• Pin Count: 28
• Package Type: PDIP
• Lead Free Status / Rohs Status: Compliant

29.2.11
8025K–AVR–10/09
Internal Oscilllator Speed
Figure 29-79. BOD Thresholds vs. Temperature (BODLEVEL is 4.3 V).
Figure 29-80. Watchdog Oscillator Frequency vs. Temperature.
4.45
4.35
4.25
4.15
4.05
4.5
4.4
4.3
4.2
4.1
112
110
108
106
104
102
100
98
96
94
92
4
-50
-50
-40
-40
-30
-30
WATCHDOG OSCILLATOR FREQUENCY vs. TEMPERATURE
-20
-20
BOD THRESHOLDS vs. TEMPERATURE
-10
-10
0
0
10
BODLEVEL IS 4.3 V
Temperature (C)
10
Temperature
20
20
30
30
40
ATmega48P/88P/168P
40
50
50
60
Falling Vcc
Rising Vcc
60
70
70
80
80
90
100
90
2.7 V
3.3 V
4.0 V
5.5 V
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