ATMEGA8A-MUR Atmel, ATMEGA8A-MUR Datasheet - Page 303

• Manufacturer Part Number: ATMEGA8A-MUR
• Description: MCU AVR 8KB FLASH 16MHZ 32QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

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

8159D–AVR–02/11
9
10 System Control and Reset .................................................................... 37
11 Interrupts ................................................................................................ 45
12 I/O Ports .................................................................................................. 50
13 External Interrupts ................................................................................. 67
14 8-bit Timer/Counter0 .............................................................................. 70
Power Management and Sleep Modes ................................................. 32
8.9
9.1
9.2
9.3
9.4
9.5
9.6
9.7
9.8
10.1
10.2
10.3
10.4
10.5
10.6
11.1
11.2
12.1
12.2
12.3
12.4
13.1
14.1
14.2
14.3
14.4
14.5
14.6
Register Description ........................................................................................31
Sleep Modes ....................................................................................................32
Idle Mode .........................................................................................................33
ADC Noise Reduction Mode ............................................................................33
Power-down Mode ...........................................................................................33
Power-save Mode ............................................................................................33
Standby Mode .................................................................................................34
Minimizing Power Consumption ......................................................................34
Register Description ........................................................................................36
Resetting the AVR ...........................................................................................37
Reset Sources .................................................................................................37
Internal Voltage Reference ..............................................................................40
Watchdog Timer ..............................................................................................41
Timed Sequences for Changing the Configuration of the Watchdog Timer ....42
Register Description ........................................................................................43
Interrupt Vectors in ATmega8A .......................................................................45
Register Description ........................................................................................48
Overview ..........................................................................................................50
Ports as General Digital I/O .............................................................................51
Alternate Port Functions ..................................................................................55
Register Description ........................................................................................65
Register Description ........................................................................................67
Features ..........................................................................................................70
Overview ..........................................................................................................70
Timer/Counter Clock Sources .........................................................................71
Counter Unit ....................................................................................................71
Operation .........................................................................................................71
Timer/Counter Timing Diagrams .....................................................................72
ATmega8A
ii