ATMEGA644V-10MUR Atmel, ATMEGA644V-10MUR Datasheet - Page 348

• Manufacturer Part Number: ATMEGA644V-10MUR
• Description: MCU AVR 64K FLASH 10MHZ 44QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA644V-10MUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 32
• 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): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

27.11 Internal Oscillator Speed
348
ATmega644
Figure 27-42. Bandgap Voltage vs. V
Figure 27-43. Watchdog Oscillator Frequency vs. V
1.072
1.068
1.066
1.064
1.062
1.058
1.056
1.054
1.07
1.06
130
128
126
124
122
120
118
116
114
112
110
1.5
1.5
2
2
2.5
2.5
CC
3
3
V
V
cc
CC
3.5
3.5
(V)
(V)
CC
4
4
4.5
4.5
CC
5
5
5.5
5.5
2593N–AVR–07/10
-40°C
-40°C
25°C
85°C
25°C
85°C