ATMEGA325A-MU Atmel, ATMEGA325A-MU Datasheet - Page 610

• 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

610
ATmega165A/165PA/325A/325PA/3250A/3250PA/645A/645P/645
Figure 29-535.ATmega6450A: Calibrated 8MHz RC Oscillator Frequency vs. V
Figure 29-536.ATmega6450A: Calibrated 8MHz RC Oscillator Frequency vs. Osccal Value
8.2
8.1
7.9
7.8
7.7
7.6
7.5
7.4
7.3
18
16
14
12
10
8
6
4
2
8
1.5
0
16
32
2
48
2.5
64
80
96 112 128 144 160 176 192 208 224 240 256
3
OSCCAL (X1)
V
CC
3.5
(V)
4
4.5
5
CC
5.5
8285B–AVR–03/11
-45 °C
-45 °C
85 °C
25 °C
85 °C
25 °C