ATA6617-P3PW Atmel, ATA6617-P3PW Datasheet - Page 68
ATA6617-P3PW
Manufacturer Part Number
ATA6617-P3PW
Description
MCU W/LIN TX/5V REG/WTCDG 38VQFN
Manufacturer
Atmel
Series
AVR® ATA66 LIN-SBCr
Datasheet
1.ATA6617-EK.pdf
(308 pages)
Specifications of ATA6617-P3PW
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, LIN, SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
16
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
38-VQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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4.6.8
4.6.8.1
4.6.8.2
4.6.8.3
4.6.8.4
4.6.8.5
68
Atmel ATA6616/ATA6617
Minimizing Power Consumption
Analog to Digital Converter
Analog Comparator
Brown-out Detector
Internal Voltage Reference
Internal Current Source
There are several possibilities to consider when trying to minimize the power consumption in
an AVR
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
Converter” on page 214
When entering Idle mode, the Analog Comparator should be disabled if not used. When enter-
ing ADC Noise Reduction mode, the Analog Comparator should be disabled. In 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 dis-
abled in all sleep modes. Otherwise, the Internal Voltage Reference will be enabled,
independent of sleep mode. Refer to
236
If the Brown-out Detector is not needed by the application, this module should be turned off. If
the Brown-out Detector is enabled by the BODLEVEL Fuses, 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 consumption. Refer to
on page 74
The Internal Voltage Reference will be enabled when needed by the Brown-out Detection, the
Analog Comparator or the ADC. If these modules are disabled as described in the sections
above, the internal voltage reference will be disabled and it will not be consuming power.
When turned on again, the user must allow the reference to start up before the output is used.
If the reference is kept on in sleep mode, the output can be used immediately. Refer to
4.7.2 “Internal Voltage Reference” on page 76
Output the internal voltage reference is not needed in the deeper sleep modes. This module
should be turned off to reduce significantly to the total current consumption. Refer to
4.17.3.1 “AMISCR – Analog Miscellaneous Control Register” on page 213
to disable the internal voltage reference output.
The Internal Current Source is not needed in the deeper sleep modes. This module should be
turned off to reduce significantly to the total current consumption. Refer to
“AMISCR – Analog Miscellaneous Control Register” on page 213
the Internal Current Source.
for details on how to configure the Analog Comparator.
®
controlled system. In general, sleep modes should be used as much as possible,
for details on how to configure the Brown-out Detector.
for details on ADC operation.
Section 4.19 “AnaComp - Analog Comparator” on page
for details on the start-up time.
Section 4.18 “ADC – Analog to Digital
Section 4.7.1.5 “Brown-out Detection”
for details on how to disable
for details on how
Section 4.17.3.1
9132D–AUTO–12/10
Section
Section
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