ATMEGA645V-8MU Atmel, ATMEGA645V-8MU Datasheet - Page 358
ATMEGA645V-8MU
Manufacturer Part Number
ATMEGA645V-8MU
Description
IC AVR MCU FLASH 64K 64-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA325-16MU.pdf
(362 pages)
Specifications of ATMEGA645V-8MU
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, 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)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-MLF®, 64-QFN
Processor Series
ATMEGA64x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
4 KB
Interface Type
SPI, UART, USI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
54
Number Of Timers
3
Operating Supply Voltage
1.8 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
For Use With
ATSTK600-TQFP64 - STK600 SOCKET/ADAPTER 64-TQFP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRISP2 - PROGRAMMER AVR IN SYSTEM
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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2570M–AVR–04/11
18 SPI – Serial Peripheral Interface ......................................................... 148
19 USART0 ................................................................................................. 157
20 USI – Universal Serial Interface .......................................................... 185
21 Analog Comparator ............................................................................. 197
22 Analog to Digital Converter ................................................................ 201
17.8
17.9
17.10
17.11
18.1
18.2
18.3
18.4
18.5
19.1
19.2
19.3
19.4
19.5
19.6
19.7
19.8
19.9
19.10
19.11
20.1
20.2
20.3
20.4
21.1
21.2
22.1
22.2
22.3
Timer/Counter Timing Diagrams ...................................................................139
Asynchronous Operation of Timer/Counter2 .................................................141
Timer/Counter Prescaler ...............................................................................142
Register Description ......................................................................................143
Features ........................................................................................................148
Overview ........................................................................................................148
SS Pin Functionality ......................................................................................152
Data Modes ...................................................................................................153
Register Description ......................................................................................154
Features ........................................................................................................157
Overview ........................................................................................................157
Clock Generation ...........................................................................................159
Frame Formats ..............................................................................................162
USART Initialization .......................................................................................163
Data Transmission – The USART Transmitter ..............................................165
Data Reception – The USART Receiver .......................................................167
Asynchronous Data Reception ......................................................................171
Multi-processor Communication Mode ..........................................................174
Examples of Baud Rate Setting .....................................................................176
Register Description ......................................................................................179
Overview ........................................................................................................185
Functional Descriptions .................................................................................186
Alternative USI Usage ...................................................................................192
Register Descriptions ....................................................................................192
Analog Comparator Multiplexed Input ...........................................................198
Register Description ......................................................................................198
Features ........................................................................................................201
Operation .......................................................................................................202
Starting a Conversion ....................................................................................203
ATmega325/3250/645/6450
iv
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