ATMEGA8A-MUR Atmel, ATMEGA8A-MUR Datasheet - Page 35
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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9.7.5
9.7.6
8159D–AVR–02/11
Watchdog Timer
Port Pins
reference is kept on in sleep mode, the output can be used immediately. Refer to
age Reference” on page 40
If the Watchdog Timer is not needed in the application, this module should be turned off. If the
Watchdog Timer is enabled, it will be enabled in all sleep modes, and hence, always consume
power. In the deeper sleep modes, this will contribute significantly to the total current consump-
tion. Refer to
When entering a sleep mode, all port pins should be configured to use minimum power. The
most important thing is then to ensure that no pins drive resistive loads. In sleep modes where
the both the I/O clock (clk
device will be disabled. This ensures that no power is consumed by the input logic when not
needed. In some cases, the input logic is needed for detecting wake-up conditions, and it will
then be enabled. Refer to the section
details on which pins are enabled. If the input buffer is enabled and the input signal is left floating
or have an analog signal level close to V
“Watchdog Timer” on page 41
I/O
for details on the start-up time.
) and the ADC clock (clk
“Digital Input Enable and Sleep Modes” on page 54
CC
/2, the input buffer will use excessive power.
for details on how to configure the Watchdog Timer.
ADC
) are stopped, the input buffers of the
ATmega8A
“Internal Volt-
for
35
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