ATMEGA8A-PU Atmel, ATMEGA8A-PU Datasheet - Page 303

• Manufacturer Part Number: ATMEGA8A-PU
• Description: MCU AVR 8K FLASH 16MHZ 28-PDIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA8A-PU

• 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 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-DIP (0.300", 7.62mm)
• Processor Series: ATMEGA8x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: SPI, TWI, USART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 23
• Number Of Timers: 3
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 6 Channel
• Package: 28PDIP
• Device Core: AVR
• Family Name: ATmega
• Maximum Speed: 16 MHz
• Operating Supply Voltage: 3.3|5 V
• Controller Family/series: AVR MEGA
• No. Of I/o's: 23
• Eeprom Memory Size: 512Byte
• Ram Memory Size: 1KB
• Cpu Speed: 16MHz
• Rohs Compliant: Yes
• For Use With: ATSTK600 - DEV KIT FOR AVR/AVR32ATSTK500 - PROGRAMMER AVR STARTER KIT
• 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
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