ATMEGA649-16MI Atmel, ATMEGA649-16MI Datasheet - Page 83

• Manufacturer Part Number: ATMEGA649-16MI
• Description: IC AVR MCU FLASH 64K 5V 64QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA649-16MI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 53
• 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): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-MLF®, 64-QFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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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