ATmega645 Atmel Corporation, ATmega645 Datasheet - Page 326

• Manufacturer Part Number: ATmega645
• Manufacturer: Atmel Corporation

Specifications of ATmega645

• Flash (kbytes): 64 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 54
• Ext Interrupts: 17
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 4
• Eeprom (bytes): 2048
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

29.10 BOD Thresholds and Analog Comparator Offset
2570N–AVR–05/11
Figure 29-39. BOD Thresholds vs. Temperature (BOD Level is 4.3V)
Figure 29-40. BOD Thresholds vs. Temperature (BOD Level is 2.7V)
4.6
4.5
4.4
4.3
4.2
4.1
2.9
2.8
2.7
2.6
2.5
2.4
4
3
-60
-60
-40
-40
-20
-20
0
0
Temperature (°C)
Temperature (°C)
20
20
Rising V
Falling V
Rising V
Falling V
ATmega325/3250/645/6450
CC
CC
CC
CC
40
40
60
60
80
80
100
100
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