ATMEGA649-16MI Atmel, ATMEGA649-16MI Datasheet - Page 4

• 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

2. Overview
The ATmega329/3290/649/6490 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architec-
ture. By executing powerful instructions in a single clock cycle, the ATmega329/3290/649/6490 achieves throughputs
approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.
2.1
Figure 2-1.
2552KS–AVR–04/11
AREF
AVCC
AGND
GND
Block Diagram
Block Diagram
VCC
ON-CHIP DEBUG
PROGRAMMING
BOUNDARY-
JTAG TAP
LOGIC
SCAN
DATA REGISTER
DATA REGISTER
USART
PORTE
PORTF
AVR CPU
PORTF DRIVERS
PORTE DRIVERS
PF0 - PF7
PE0 - PE7
INSTRUCTION
INSTRUCTION
PROGRAM
PROGRAM
REGISTER
COUNTER
CONTROL
DECODER
SERIAL INTERFACE
FLASH
LINES
ADC
REG. PORTE
REG. PORTF
UNIVERSAL
DATA DIR.
DATA DIR.
DATA REGISTER
REGISTERS
REGISTER
GENERAL
PURPOSE
POINTER
STATUS
STACK
SRAM
PORTB
DATA REGISTER
ALU
X
Y
Z
PORTA
PORTB DRIVERS
PB0 - PB7
PORTA DRIVERS
PA0 - PA7
REG. PORTB
DATA DIR.
REG. PORTA
DATA DIR.
MCU CONTROL
ATmega329/3290/649/6490
OSCILLATOR
WATCHDOG
INTERRUPT
COUNTERS
INTERNAL
REGISTER
EEPROM
TIMER/
TIMER
UNIT
SPI
8-BIT DATA BUS
DATA REGISTER
PORTD
DATA REGISTER
PORTD DRIVERS
PD0 - PD7
PORTC
OSCILLATOR
TIMING AND
CALIB. OSC
CONTROL
PORTC DRIVERS
REG. PORTD
PC0 - PC7
DATA DIR.
REG. PORTC
DATA DIR.
CONTROLLER/
DRIVER
LCD
DATA REG.
PORTG
PORTG DRIVERS
PG0 - PG4
REG. PORTG
DATA DIR.
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