ATMEGA649-16MUR Atmel, ATMEGA649-16MUR Datasheet - Page 84

• Manufacturer Part Number: ATMEGA649-16MUR
• Description: MCU AVR 64KB FLASH 16MHZ 64QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA649-16MUR

• 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: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

13.3.9
84
ATmega329/3290/649/6490
Alternate Functions of Port J
Table 13-26. Overriding Signals for Alternate Functions in PH3:0
Port J is only present in ATmega3290/6490. The alternate pin configuration is as follows:
Table 13-27. Port J Pins Alternate Functions
The alternate pin configuration is as follows:
• PCINT30/SEG – Port J, Bit 6
PCINT30, Pin Change Interrupt Source 30: The PE30 pin can serve as an external interrupt
source.
SEG, LCD front plane 27.
• PCINT29/SEG – Port J, Bit 5
PCINT29, Pin Change Interrupt Source 29: The PE29 pin can serve as an external interrupt
source.
SEG, LCD front plane28.
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
Port Pin
PJ6
PJ5
PJ4
PJ3
PJ2
PJ1
PJ0
PH3/PCINT19/
SEG7
LCDEN
0
LCDEN
0
0
0
–
PCINT19 •
PCIE0 •LCDEN •
LCDPM
PCINT19 INPUT
LCDSEG
Alternate Function
PCINT30/SEG (Pin Change Interrupt30 or LCD Front Plane 27)
PCINT29/SEG (Pin Change Interrupt29 or LCD Front Plane 28)
PCINT28/SEG (Pin Change Interrupt28 or LCD Front Plane 29)
PCINT27/SEG (Pin Change Interrupt27 or LCD Front Plane 30)
PCINT26/SEG(Pin Change Interrupt26 or LCD Front Plane 31)
PCINT25/SEG(Pin Change Interrupt25 or LCD Front Plane 34)
PCINT24/SEG (Pin Change Interrupt26 or LCD Front Plane 35)
PH2/PCINT18/
SEG8
LCDEN
0
LCDEN
0
0
0
–
PCINT18 •
PCIE0 •LCDEN •
LCDPM
PCINT18 INPUT
LCDSEG
PH1/PCINT17/
SEG9
LCDEN
0
LCDEN
0
0
0
–
PCINT17 •
PCIE0 •LCDEN •
LCDPM
PCINT17 INPUT
LCDSEG
PH0/PCINT16/
SEG10
LCDEN
0
LCDEN
0
0
0
–
PCINT16 •
PCIE0 •LCDEN •
LCDPM
PCINT16 INPUT
LCDSEG
2552K–AVR–04/11