ATMEGA325A-MU Atmel, ATMEGA325A-MU Datasheet - Page 352

• 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

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ATmega165A/165PA/325A/325PA/3250A/3250PA/645A/645P/645
Figure 29-38. ATmega165A: Reset Input Threshold Voltage vs. V
Figure 29-39. ATmega165A: Reset Input Pin Hysteresis vs. V
2.4
2.2
1.8
1.6
1.4
1.2
0.8
0.6
0.7
0.6
0.5
0.4
0.3
0.2
0.1
2
1
0
1.5
1.5
2
2
2.5
2.5
3
3
V
V
CC
CC
3.5
3.5
(V)
(V)
4
4
CC
4.5
4.5
CC
(V
IL
,Reset Pin Read as “0”)
5
5
5.5
5.5
8285B–AVR–03/11
-45 °C
-45 °C
85 °C
25 °C
25 °C
85 °C