ATMEGA325A-MU Atmel, ATMEGA325A-MU Datasheet - Page 355

• Manufacturer Part Number: ATMEGA325A-MU
• Description: IC MCU AVR 32K FLASH 64VQFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA325A-MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, 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): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-VFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8285B–AVR–03/11
ATmega165A/165PA/325A/325PA/3250A/3250PA/6
Figure 29-44. ATmega165A: Bandgap Voltage vs. Temperature
Figure 29-45. ATmega165A: Analog Comparator Offset Voltage vs. Common Mode Voltage
1.102
1.097
1.092
1.087
1.082
1.077
1.072
1.067
0.007
0.006
0.005
0.004
0.003
0.002
0.001
0
-45
0.1
(V
CC
-35
0.5
= 5V)
-25
0.9
-15
1.3
-5
1.7
Common Mode Voltage (V)
5
Temperature (°C)
2.1
15
2.5
25
2.9
35
3.3
45
3.7
55
4.1
65
4.5
75
4.9
85
-40 °C
1.8 V
2.7 V
4.0 V
5.5 V
85 °C
25 °C
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