ATMEGA64A-AUR Atmel, ATMEGA64A-AUR Datasheet - Page 364

• Manufacturer Part Number: ATMEGA64A-AUR
• Description: IC MCU AVR 64K FLASH 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA64A-AUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 4K 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-TQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8160C–AVR–07/09
Figure 29-42. Calibrated 1 MHz RC Oscillator Frequency vs. Osccal Value
Figure 29-43. Calibrated 2 MHz RC Oscillator Frequency vs. Temperature
2.05
1.95
1.85
1.9
1.8
1.8
1.6
1.4
1.2
0.8
0.6
0.4
2
1
-40
0
16
-30
32
-20
48
-10
64
80
0
96
10
OSCCAL VALUE
Temperature ( °C )
112 128 144 160 176 192 208 224 240 256
20
30
40
50
60
ATmega64A
70
80
25 °C
5.5 V
5.0 V
4.5 V
4.0 V
3.6 V
3.3 V
3.0 V
2.7 V
364