ATMEGA8A-MUR Atmel, ATMEGA8A-MUR Datasheet - Page 72
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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14.6
8159D–AVR–02/11
Timer/Counter Timing Diagrams
interrupt that automatically clears the TOV0 Flag, the timer resolution can be increased by soft-
ware. A new counter value can be written anytime.
The Timer/Counter is a synchronous design and the timer clock (clk
clock enable signal in the following figures. The figures include information on when Interrupt
Flags are set.
shows the count sequence close to the MAX value.
Figure 14-3. Timer/Counter Timing Diagram, No Prescaling
Figure 14-4
Figure 14-4. Timer/Counter Timing Diagram, with Prescaler (f
TCNTn
TCNTn
(clk
(clk
TOVn
TOVn
clk
clk
clk
clk
I/O
I/O
I/O
Tn
I/O
Tn
/1)
/8)
shows the same timing data, but with the prescaler enabled.
Figure 14-3
MAX - 1
MAX - 1
contains timing data for basic Timer/Counter operation. The figure
MAX
MAX
BOTTOM
BOTTOM
clk_I/O
/8)
T0
) is therefore shown as a
ATmega8A
BOTTOM + 1
BOTTOM + 1
72
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