ATA6617-P3PW Atmel, ATA6617-P3PW Datasheet - Page 213
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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4.17.2.2
4.17.2.3
4.17.2.4
4.17.3
4.17.3.1
9132D–AUTO–12/10
Control Register
Current Source for Low Cost Transducer
Voltage Reference for External Devices
Threshold Reference for Internal Analog Comparator
AMISCR – Analog Miscellaneous Control Register
An external transducer based on a variable resistor can be connected to the Current Source.
This can be, for instance:
Using the Current Source with this type of transducer eliminates the need for additional parts
otherwise required in resistor network or Wheatstone bridge.
An external resistor used in conjunction with the Current Source can be used as voltage refer-
ence for external devices. Using a resistor in series with a lower tolerance than the Current
Source accuracy ( 2%) is recommended.
using standard values of resistors.
An external resistor used in conjunction with the Current Source can be used as threshold ref-
erence for internal Analog Comparator (see
page
AIN1 (positive Analog Compare input pin). Using a resistor in series with a lower tolerance
than the Current Source accuracy ( 2%) is recommended.
threshold references using standard values of resistors.
• Bit 0 – ISRCEN: Current Source Enable
Writing this bit to one enables the Current Source as shown in
to use DIDR register bit function when ISRCEN is set and to turn off the Current Source once
the ADC measurement is done.
Bit
Read/Write
Initial Value
• A thermistor, or temperature-sensitive resistor, used as a temperature sensor,
• A CdS photoconductive cell, or luminosity-sensitive resistor, used as a luminosity sensor,
• ...
236). This can be connected to AIN0 (negative Analog Compare input pin) as well as
R
7
0
-
R
6
0
-
R
5
0
-
Table 4-54
R
4
0
-
Section 4.19 “AnaComp - Analog Comparator” on
Atmel ATA6616/ATA6617
R
3
0
-
gives an example of voltage references
AREFEN XREFEN ISRCEN AMISCR
R/W
Table 4-54
2
0
Figure
R/W
4-81. It is recommended
1
0
gives an example of
R/W
0
0
213
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