ATMEGA8A-MU Atmel, ATMEGA8A-MU Datasheet - Page 304

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

Specifications of ATMEGA8A-MU

• 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: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Controller Family/series: AVR MEGA
• No. Of I/o's: 23
• Eeprom Memory Size: 512Byte
• Ram Memory Size: 1KB
• Cpu Speed: 16MHz
• No. Of Timers: 3
• Rohs Compliant: Yes
• 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: SMD/SMT
• 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, 8 Channel
• 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
15 Timer/Counter0 and Timer/Counter1 Prescalers ................................ 75
16 16-bit Timer/Counter1 ............................................................................ 78
17 8-bit Timer/Counter2 with PWM and Asynchronous Operation ...... 106
18 Serial Peripheral Interface – SPI ......................................................... 126
14.7
15.1
15.2
15.3
15.4
15.5
16.1
16.2
16.3
16.4
16.5
16.6
16.7
16.8
16.9
16.10
16.11
17.1
17.2
17.3
17.4
17.5
17.6
17.7
17.8
17.9
17.10
17.11
18.1
18.2
18.3
Register Description ........................................................................................73
Overview ..........................................................................................................75
Internal Clock Source ......................................................................................75
Prescaler Reset ...............................................................................................75
External Clock Source .....................................................................................75
Register Description ........................................................................................77
Features ..........................................................................................................78
Overview ..........................................................................................................78
Accessing 16-bit Registers ..............................................................................81
Timer/Counter Clock Sources .........................................................................83
Counter Unit ....................................................................................................84
Input Capture Unit ...........................................................................................85
Output Compare Units .....................................................................................87
Compare Match Output Unit ............................................................................89
Modes of Operation .........................................................................................90
Timer/Counter Timing Diagrams .....................................................................97
Register Description ........................................................................................99
Features ........................................................................................................106
Overview ........................................................................................................106
Timer/Counter Clock Sources .......................................................................108
Counter Unit ..................................................................................................108
Output Compare Unit .....................................................................................109
Compare Match Output Unit ..........................................................................111
Modes of Operation .......................................................................................112
Timer/Counter Timing Diagrams ...................................................................116
Asynchronous Operation of the Timer/Counter .............................................118
Timer/Counter Prescaler ...............................................................................120
Register Description ......................................................................................121
Features ........................................................................................................126
Overview ........................................................................................................126
SS Pin Functionality ......................................................................................131
ATmega8A
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