ATmega649 Atmel Corporation, ATmega649 Datasheet - Page 83
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ATmega649
Manufacturer Part Number
ATmega649
Description
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
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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
83
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