ATMEGA644P-A15MZ Atmel, ATMEGA644P-A15MZ Datasheet - Page 371

• Manufacturer Part Number: ATMEGA644P-A15MZ
• Description: MCU AVR 64KB FLASH 16MHZ 44QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA644P-A15MZ

• Package / Case: 44-VQFN Exposed Pad
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Speed: 16MHz
• Number Of I /o: 32
• Eeprom Size: 2K x 8
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Program Memory Size: 64KB (64K x 8)
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Connectivity: I²C, SPI, UART/USART
• Core Size: 8-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7674F–AVR–09/09
13 8-bit Timer/Counter0 with PWM ............................................................ 92
14 16-bit Timer/Counter1 with PWM ........................................................ 110
15 8-bit Timer/Counter2 with PWM and Asynchronous Operation ...... 139
13.1
13.2
13.3
13.4
13.5
13.6
13.7
13.8
13.9
14.1
14.2
14.3
14.4
14.5
14.6
14.7
14.8
14.9
14.10
14.11
15.1
15.2
15.3
15.4
15.5
15.6
15.7
15.8
15.9
15.10
15.11
Features ..........................................................................................................92
Overview ..........................................................................................................92
Timer/Counter Clock Sources .........................................................................93
Counter Unit ....................................................................................................93
Output Compare Unit .......................................................................................94
Compare Match Output Unit ............................................................................96
Modes of Operation .........................................................................................97
Timer/Counter Timing Diagrams ...................................................................101
Register Description ......................................................................................103
Features ........................................................................................................110
Overview ........................................................................................................110
Accessing 16-bit Registers ............................................................................112
Timer/Counter Clock Sources .......................................................................115
Counter Unit ..................................................................................................116
Input Capture Unit .........................................................................................117
Output Compare Units ...................................................................................119
Compare Match Output Unit ..........................................................................121
Modes of Operation .......................................................................................122
Timer/Counter Timing Diagrams ...................................................................129
Register Description ......................................................................................131
Features ........................................................................................................139
Overview ........................................................................................................139
Timer/Counter Clock Sources .......................................................................140
Counter Unit ..................................................................................................141
Output Compare Unit .....................................................................................142
Compare Match Output Unit ..........................................................................143
Modes of Operation .......................................................................................145
Timer/Counter Timing Diagrams ...................................................................149
Asynchronous Operation of Timer/Counter2 .................................................151
Timer/Counter Prescaler ...............................................................................153
Register Description ......................................................................................153
ATmega164P/324P/644P
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