ATMEGA8A-MUR Atmel, ATMEGA8A-MUR Datasheet - Page 302
ATMEGA8A-MUR
Manufacturer Part Number
ATMEGA8A-MUR
Description
MCU AVR 8KB FLASH 16MHZ 32QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA8A-MU.pdf
(308 pages)
Specifications of ATMEGA8A-MUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
23
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Table of Contents
8159D–AVR–02/11
1
2
3
4
5
6
7
8
Features ..................................................................................................... 1
Pin Configurations ................................................................................... 2
Overview ................................................................................................... 3
Resources ................................................................................................. 6
Data Retention .......................................................................................... 6
About Code Examples ............................................................................. 6
AVR CPU Core .......................................................................................... 7
AVR Memories ........................................................................................ 15
System Clock and Clock Options ......................................................... 24
2.1
2.2
6.1
6.2
6.3
6.4
6.5
6.6
6.7
7.1
7.2
7.3
7.4
7.5
7.6
8.1
8.2
8.3
8.4
8.5
8.6
8.7
8.8
Block Diagram ...................................................................................................3
Pin Descriptions .................................................................................................4
Overview ............................................................................................................7
Arithmetic Logic Unit – ALU ...............................................................................8
Status Register ..................................................................................................8
General Purpose Register File ........................................................................10
Stack Pointer ...................................................................................................11
Instruction Execution Timing ...........................................................................12
Reset and Interrupt Handling ...........................................................................13
Overview ..........................................................................................................15
In-System Reprogrammable Flash Program Memory .....................................15
SRAM Data Memory ........................................................................................16
EEPROM Data Memory ..................................................................................18
I/O Memory ......................................................................................................18
Register Description ........................................................................................19
Clock Systems and their Distribution ...............................................................24
Clock Sources .................................................................................................25
Crystal Oscillator .............................................................................................26
Low-frequency Crystal Oscillator .....................................................................27
External RC Oscillator .....................................................................................28
Calibrated Internal RC Oscillator .....................................................................29
External Clock .................................................................................................30
Timer/Counter Oscillator ..................................................................................30
ATmega8A
i
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