ATmega649 Atmel Corporation, ATmega649 Datasheet - Page 83

• Manufacturer Part Number: ATmega649
• Manufacturer: Atmel Corporation

Specifications of ATmega649

• 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
• Segment Lcd: 100
• 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

2552K–AVR–04/11
• PCINT17/SEG – Port H, Bit 1
PCINT17, Pin Change Interrupt Source 17: The P1 pin can serve as an external interrupt
source.
SEG, LCD front plane 9.
• PCINT16/SEG – Port H, Bit 0
PCINT16, Pin Change Interrupt Source 16: The PH0 pin can serve as an external interrupt
source.
SEG, LCD front plane 10.
Table 13-25
shown in
Table 13-25. Overriding Signals for Alternate Functions in PH7:4
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
Figure 13-5 on page
and
PH7/PCINT23/
SEG36
LCDEN
0
LCDEN
0
0
0
–
PCINT23 •
PCIE0 •LCDEN •
LCDPM
PCINT23 INPUT
LCDSEG
Table 13-26
relates the alternate functions of Port H to the overriding signals
65.
PH6/PCINT22/
SEG37
LCDEN
0
LCDEN
0
0
0
–
PCINT22 •
PCIE0 •LCDEN •
LCDPM
PCINT22 INPUT
LCDSEG
ATmega329/3290/649/6490
PH5/PCINT21/
SEG38
LCDEN
0
LCDEN
0
0
0
–
PCINT21 •
PCIE0 •LCDEN •
LCDPM
PCINT21 INPUT
LCDSEG
PH4/PCINT20/
SEG39
LCDEN
0
LCDEN
0
0
0
–
PCINT20 •
PCIE0 •LCDEN •
LCDPM
PCINT20 INPUT
LCDSEG
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