ATMEGA64A-MN Atmel, ATMEGA64A-MN Datasheet - Page 48
ATMEGA64A-MN
Manufacturer Part Number
ATMEGA64A-MN
Description
IC MCU AVR 64K FLASH 8QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA64A-AU.pdf
(392 pages)
Specifications of ATMEGA64A-MN
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
53
Program Memory Size
64KB (32K x 16)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
4K 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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Table 9-1.
Notes:
9.7
9.7.1
9.7.2
9.7.3
8160C–AVR–07/09
Sleep
Mode
Idle
ADC
Noise
Reduction
Power-
down
Power-
save
Standby
Extended
Standby
1. External Crystal or resonator selected as clock source.
2. If AS
3. Only INT3:0 or level interrupt INT7:4.
Minimizing Power Consumption
(1)
(1)
Analog to Digital Converter
Analog Comparator
Brown-out Detector
Active Clock Domains and Wake Up Sources in the Different Sleep Modes
0
bit in ASSR is set.
Active Clock Domains
There are several issues to consider when trying to minimize the power consumption in an AVR
controlled system. In general, sleep modes should be used as much as possible, and the sleep
mode should be selected so that as few as possible of the device’s functions are operating. All
functions not needed should be disabled. In particular, the following modules may need special
consideration when trying to achieve the lowest possible power consumption.
If enabled, the ADC will be enabled in all sleep modes. To save power, the ADC should be dis-
abled before entering any sleep mode. When the ADC is turned off and on again, the next
conversion will be an extended conversion. Refer to
for details on ADC operation.
When entering Idle mode, the Analog Comparator should be disabled if not used. When entering
ADC Noise Reduction mode, the Analog Comparator should be disabled. In the other sleep
modes, the Analog Comparator is automatically disabled. However, if the Analog Comparator is
set up to use the internal voltage reference as input, the Analog Comparator should be disabled
in all sleep modes. Otherwise, the internal voltage reference will be enabled, independent of
sleep mode. Refer to
log Comparator.
If the Brown-out Detector is not needed in the application, this module should be turned off. If the
Brown-out Detector is enabled by the BODEN Fuse, it will be enabled in all sleep modes, and
X
X
X
X
X
“Analog Comparator” on page 230
X
X
(2)
(2)
X
X
X
X
Oscillators
X
X
X
X
(2)
(2)
(2)
(2)
X
X
X
X
X
X
(3)
(3)
(3)
(3)
(3)
“Analog to Digital Converter” on page 233
for details on how to configure the Ana-
X
X
X
X
X
X
Wake Up Sources
X
X
X
X
(2)
(2)
ATmega64A
X
X
X
X
X
48
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