ATMEGA88A-MUR Atmel, ATMEGA88A-MUR Datasheet - Page 39
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ATMEGA88A-MUR
Manufacturer Part Number
ATMEGA88A-MUR
Description
IC MCU AVR 8K FLASH 32QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA88A-MUR
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
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)
1.8 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
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA88A-MUR
Manufacturer:
RENESAS
Quantity:
4 152
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9. Power Management and Sleep Modes
9.1
Table 9-1.
Notes:
8271C–AVR–08/10
Sleep Mode
Idle
ADC Noise
Reduction
Power-down
Power-save
Standby
Extended
Standby
Sleep Modes
1. Only recommended with external crystal or resonator selected as clock source.
2. If Timer/Counter2 is running in asynchronous mode.
3. For INT1 and INT0, only level interrupt.
(1)
Active Clock Domains and Wake-up Sources in the Different Sleep Modes.
Active Clock Domains
Sleep modes enable the application to shut down unused modules in the MCU, thereby saving
power. The AVR provides various sleep modes allowing the user to tailor the power consump-
tion to the application’s requirements.
When enabled, the Brown-out Detector (BOD) actively monitors the power supply voltage during
the sleep periods. To further save power, it is possible to disable the BOD in some sleep modes.
See
F i g u r e 8 - 1 o n p a g e 2 6
ATmega48A/48PA/88A/88PA/168A/168PA/328/328P, and their distribution. The figure is helpful
in selecting an appropriate sleep mode.
up sources BOD disable ability.
Note:
To enter any of the six sleep modes, the SE bit in SMCR must be written to logic one and a
SLEEP instruction must be executed. The SM2, SM1, and SM0 bits in the SMCR Register select
which sleep mode (Idle, ADC Noise Reduction, Power-down, Power-save, Standby, or Extended
Standby) will be activated by the SLEEP instruction. See
If an enabled interrupt occurs while the MCU is in a sleep mode, the MCU wakes up. The MCU
is then halted for four cycles in addition to the start-up time, executes the interrupt routine, and
resumes execution from the instruction following SLEEP. The contents of the Register File and
SRAM are unaltered when the device wakes up from sleep. If a reset occurs during sleep mode,
the MCU wakes up and executes from the Reset Vector.
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
”BOD Disable(1)” on page 40
X
1. BOD disable is only available for ATmega48PA/88PA/168PA/328P.
X
X
X
X
X
X
(2)
Oscillators
X
X
X
X
(1)
X
X
X
X
(2)
(2)
(2)
(2)
for more details.
p r e s e n t s t h e d i f f e r e n t c l o c k s y s t e m s i n t h e
Table 9-1
X
X
X
X
X
X
(3)
(3)
(3)
(3)
(3)
shows the different sleep modes, their wake
X
X
X
X
X
X
Wake-up Sources
Table 9-2 on page 44
X
X
X
X
(2)
X
X
X
X
for a summary.
X
X
X
X
X
X
X
X
X
X
X
39
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