ATMEGA645A-AU Atmel, ATMEGA645A-AU Datasheet - Page 606

• Manufacturer Part Number: ATMEGA645A-AU
• Description: IC MCU AVR 64K FLASH 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA645A-AU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 54
• 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: 64-TQFP
• Processor Series: ATmega
• Core: AVR
• Data Bus Width: 8 bit
• Data Ram Size: 4 KB
• Interface Type: SPI, USART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 54
• Number Of Timers: 3
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

29.9.10
606
ATmega165A/165PA/325A/325PA/3250A/3250PA/645A/645P/645
BOD Thresholds and Analog Comparator Offset
Figure 29-527.ATmega6450A: BOD Thresholds vs. Temperature (BOD Level is 4.3V)
Figure 29-528.ATmega6450A: BOD Thresholds vs. Temperature (BOD Level is 2.7V)
2.795
2.785
2.775
2.765
2.755
2.745
2.735
2.725
2.715
2.705
2.695
2.685
4.41
4.39
4.37
4.35
4.33
4.31
4.29
-45
-45
-35
-35
-25
-25
-15
-15
Rising Vcc
Falling Vcc
-5
-5
5
5
Temperature (°C)
Temperature (°C)
15
15
Falling Vcc
Rising Vcc
25
25
35
35
45
45
55
55
65
65
75
75
85
85
8285B–AVR–03/11