ATMEGA32-16AI Atmel, ATMEGA32-16AI Datasheet - Page 34
![IC AVR MCU 32K 16MHZ IND 44-TQFP](/photos/6/70/67042/313-44-tqfp_sml.jpg)
ATMEGA32-16AI
Manufacturer Part Number
ATMEGA32-16AI
Description
IC AVR MCU 32K 16MHZ IND 44-TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA32-16AI
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
32
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Standby Mode
Extended Standby
Mode
Minimizing Power
Consumption
Analog to Digital
Converter
2503Q–AVR–02/11
When the SM2..0 bits are 110 and an external crystal/resonator clock option is selected, the
SLEEP instruction makes the MCU enter Standby mode. This mode is identical to Power-down
with the exception that the Oscillator is kept running. From Standby mode, the device wakes up
in six clock cycles.
When the SM2..0 bits are 111 and an external crystal/resonator clock option is selected, the
SLEEP instruction makes the MCU enter Extended Standby mode. This mode is identical to
Power-save mode with the exception that the Oscillator is kept running. From Extended Standby
mode, the device wakes up in six clock cycles..
Table 14. Active Clock Domains and Wake Up Sources in the Different Sleep Modes
Notes:
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.
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 INT2 or level interrupt INT1 and INT0.
(1)
(1)
Active Clock domains
2
bit in ASSR is set.
X
X
X
X
X
X
X
(2)
(2)
Oscillators
X
X
X
X
X
X
X
X
(2)
(2)
(2)
(2)
X
X
X
X
X
“Analog to Digital Converter” on page 201
X
(3)
(3)
(3)
(3)
(3)
Wake-up Sources
X
X
X
X
X
X
X
X
X
X
(2)
(2)
ATmega32(L)
X
X
X
X
X
34
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