ATmega645 Atmel Corporation, ATmega645 Datasheet - Page 10

• 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

7. Register Summary
2570NS–AVR–05/11
Address
(0xFE)
(0xFD)
(0xFC)
(0xFB)
(0xFA)
(0xEF)
(0xEE)
(0xED)
(0xEC)
(0xEB)
(0xEA)
(0xDF)
(0xDE)
(0xDD)
(0xDC)
(0xDB)
(0xDA)
(0xD9)
(0xD8)
(0xD7)
(0xD6)
(0xD5)
(0xD4)
(0xD3)
(0xD2)
(0xD1)
(0xD0)
(0xCF)
(0xCE)
(0xCD)
(0xCC)
(0xCB)
(0xCA)
(0xC9)
(0xC8)
(0xC7)
(0xC6)
(0xC5)
(0xC4)
(0xFF)
(0xF9)
(0xF8)
(0xF7)
(0xF6)
(0xF5)
(0xF4)
(0xF3)
(0xF2)
(0xF1)
(0xF0)
(0xE9)
(0xE8)
(0xE7)
(0xE6)
(0xE5)
(0xE4)
(0xE3)
(0xE2)
(0xE1)
(0xE0)
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
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Reserved
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Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
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Reserved
Reserved
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Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
UBRR0H
UBRR0L
Name
PORTH
PORTJ
DDRH
DDRJ
UDR0
PINH
PINJ
PORTH7
PINH7
Bit 7
DDH7
Note:
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Registers with bold type only available in ATmega3250/6450.
PORTH6
PORTJ6
Bit 6
PINH6
PINJ6
DDH6
DDJ6
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PORTJ5
PORTH5
Bit 5
PINH5
PINJ5
DDH5
DDJ5
-
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USART0 Baud Rate Register Low
PORTH4
PORTJ4
Bit 4
PINH4
PINJ4
DDH4
DDJ4
USART0 Data Register
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PORTH3
PORTJ3
Bit 3
PINH3
PINJ3
DDH3
DDJ3
ATmega325/3250/645/6450
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USART0 Baud Rate Register High
PORTH2
PORTJ2
PINH2
Bit 2
PINJ2
DDH2
DDJ2
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PORTH1
PORTJ1
PINH1
Bit 1
PINJ1
DDJ1
DDH1
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PORTH0
PORTJ0
PINH0
Bit 0
PINJ0
DDH0
DDJ0
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