ATMEGA649A-AU Atmel, ATMEGA649A-AU Datasheet - Page 706

• Manufacturer Part Number: ATMEGA649A-AU
• Description: IC MCU AVR 64K FLASH 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA649A-AU

• 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: 54
• 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): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP
• Processor Series: ATmega
• Core: AVR
• Data Bus Width: 8 bit
• Data Ram Size: 4 KB
• Interface Type: SPI, USART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 54
• Number Of Timers: 3
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8284A–AVR–10/10
13 I/O-Ports .................................................................................................. 66
14 8-bit Timer/Counter0 with PWM ............................................................ 97
15 16-bit Timer/Counter1 .......................................................................... 112
16 Timer/Counter0 and Timer/Counter1 Prescalers .............................. 140
17 8-bit Timer/Counter2 with PWM and Asynchronous Operation ...... 147
ATmega169A/169PA/329A/329PA/649A/649P/3290A/3290PA/6490A/6490P
13.1Overview ...............................................................................................................66
13.2Ports as General Digital I/O ...................................................................................67
13.3Alternate Port Functions ........................................................................................72
13.4Register Description ..............................................................................................93
14.1Features ................................................................................................................97
14.2Overview ...............................................................................................................97
14.3Timer/Counter Clock Sources ...............................................................................98
14.4Counter Unit ..........................................................................................................98
14.5Output Compare Unit ..........................................................................................100
14.6Compare Match Output Unit ................................................................................101
14.7Modes of Operation .............................................................................................102
14.8Timer/Counter Timing Diagrams .........................................................................107
14.9Register Description ............................................................................................108
15.1Features ..............................................................................................................112
15.2Overview .............................................................................................................112
15.3Accessing 16-bit Registers ..................................................................................115
15.4Timer/Counter Clock Sources .............................................................................117
15.5Counter Unit ........................................................................................................118
15.6Input Capture Unit ...............................................................................................119
15.7Output Compare Units .........................................................................................121
15.8Compare Match Output Unit ................................................................................123
15.9Modes of Operation .............................................................................................124
15.10Timer/Counter Timing Diagrams .......................................................................131
15.11Register Description ..........................................................................................133
16.1Internal Clock Source ..........................................................................................140
16.2Prescaler Reset ...................................................................................................140
16.3External Clock Source .........................................................................................140
16.4Register Description ............................................................................................142
17.1Features ..............................................................................................................147
17.2Overview .............................................................................................................147
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