ATMEGA645P-MU Atmel, ATMEGA645P-MU Datasheet - Page 675
![IC MCU AVR 64K FLASH 64QFN](/photos/12/13/121326/313-64-qfn_sml.jpg)
ATMEGA645P-MU
Manufacturer Part Number
ATMEGA645P-MU
Description
IC MCU AVR 64K FLASH 64QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA645P-MU
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, 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-VFQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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8285B–AVR–03/11
ATmega165A/165PA/325A/325PA/3250A/3250PA/6
14 8-bit Timer/Counter0 with PWM ............................................................ 94
15 16-bit Timer/Counter1 .......................................................................... 109
16 Timer/Counter0 and Timer/Counter1 Prescalers .............................. 137
17 8-bit Timer/Counter2 with PWM and Asynchronous Operation ...... 140
13.1Overview ...............................................................................................................68
13.2Ports as General Digital I/O ...................................................................................69
13.3Alternate Port Functions ........................................................................................74
13.4Register Description ..............................................................................................90
14.1Features ................................................................................................................94
14.2Overview ...............................................................................................................94
14.3Timer/Counter Clock Sources ...............................................................................95
14.4Counter Unit ..........................................................................................................95
14.5Output Compare Unit ............................................................................................96
14.6Compare Match Output Unit ..................................................................................98
14.7Modes of Operation ...............................................................................................99
14.8Timer/Counter Timing Diagrams .........................................................................103
14.9Register Description ............................................................................................105
15.1Features ..............................................................................................................109
15.2Overview .............................................................................................................109
15.3Accessing 16-bit Registers ..................................................................................111
15.4Timer/Counter Clock Sources .............................................................................114
15.5Counter Unit ........................................................................................................115
15.6Input Capture Unit ...............................................................................................116
15.7Output Compare Units .........................................................................................118
15.8Compare Match Output Unit ................................................................................119
15.9Modes of Operation .............................................................................................121
15.10Timer/Counter Timing Diagrams .......................................................................128
15.11Register Description ..........................................................................................130
16.1Prescaler Reset ...................................................................................................137
16.2Internal Clock Source ..........................................................................................137
16.3External Clock Source .........................................................................................137
16.4Register Description ............................................................................................139
17.1Features ..............................................................................................................140
17.2Overview .............................................................................................................140
17.3Timer/Counter Clock Sources .............................................................................141
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