ATMEGA644V-10MU Atmel, ATMEGA644V-10MU Datasheet - Page 370

• Manufacturer Part Number: ATMEGA644V-10MU
• Description: IC AVR MCU FLASH 64K 44-QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA644V-10MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 32
• 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: 44-VQFN Exposed Pad
• Package: 44QFN EP
• Device Core: AVR
• Family Name: ATmega
• Maximum Speed: 10 MHz
• Operating Supply Voltage: 2.5|3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 32
• Interface Type: JTAG/SPI/TWI/USART
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 3
• Processor Series: ATMEGA64x
• Core: AVR8
• Data Ram Size: 4 KB
• Maximum Clock Frequency: 20 MHz
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• For Use With: ATSTK600-TQFP44 - STK600 SOCKET/ADAPTER 44-TQFPATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRISP2 - PROGRAMMER AVR IN SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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ATmega644
8
9
10 Interrupts ................................................................................................ 57
11 External Interrupts ................................................................................. 63
12 I/O-Ports .................................................................................................. 68
13 8-bit Timer/Counter0 with PWM ............................................................ 89
14 16-bit Timer/Counter1 with PWM ........................................................ 106
Power Management and Sleep Modes ................................................. 40
System Control and Reset .................................................................... 46
7.10Timer/Counter Oscillator .......................................................................................37
7.11System Clock Prescaler ........................................................................................37
8.1Idle Mode .................................................................................................................41
8.2ADC Noise Reduction Mode ...................................................................................41
8.3Power-down Mode ..................................................................................................41
8.4Power-save Mode ...................................................................................................41
8.5Standby Mode .........................................................................................................42
8.6Extended Standby Mode .........................................................................................42
8.7Power Reduction Register .......................................................................................43
8.8Minimizing Power Consumption ..............................................................................44
9.1Internal Voltage Reference ......................................................................................51
9.2Watchdog Timer ......................................................................................................52
10.1Interrupt Vectors in ATmega644 ...........................................................................57
12.1Introduction ............................................................................................................68
12.2Ports as General Digital I/O ...................................................................................69
12.3Alternate Port Functions ........................................................................................74
12.4Register Description for I/O-Ports ..........................................................................87
13.1Overview ...............................................................................................................89
13.2Timer/Counter Clock Sources ...............................................................................90
13.3Counter Unit ..........................................................................................................90
13.4Output Compare Unit ............................................................................................91
13.5Compare Match Output Unit ..................................................................................93
13.6Modes of Operation ...............................................................................................94
13.7Timer/Counter Timing Diagrams ...........................................................................98
13.88-bit Timer/Counter Register Description ............................................................100
14.1Overview .............................................................................................................106
14.2Accessing 16-bit Registers ..................................................................................108
2593N–AVR–07/10