AT32UC3L064-AUT Atmel, AT32UC3L064-AUT Datasheet - Page 665
![MCU AVR32 64KB FLASH 48TQFP](/photos/6/82/68248/313-48-vqfp_sml.jpg)
AT32UC3L064-AUT
Manufacturer Part Number
AT32UC3L064-AUT
Description
MCU AVR32 64KB FLASH 48TQFP
Manufacturer
Atmel
Series
AVR®32 UC3r
Datasheets
1.ATAVRONE-PROBECBL.pdf
(16 pages)
2.AT32UC3L-EK.pdf
(858 pages)
3.AT32UC3L016-D3HT.pdf
(110 pages)
Specifications of AT32UC3L064-AUT
Core Processor
AVR
Core Size
32-Bit
Speed
50MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, DMA, PWM, WDT
Number Of I /o
36
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.62 V ~ 3.6 V
Data Converters
A/D 9x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-TQFP, 48-VQFP
Processor Series
AT32UC3x
Core
AVR32
Data Bus Width
32 bit
Data Ram Size
16 KB
Interface Type
SPI/TWI/USART
Maximum Clock Frequency
50 MHz
Number Of Programmable I/os
36
Number Of Timers
7
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR32, EWAVR32-BL
Development Tools By Supplier
AT32UC3L-EK
Minimum Operating Temperature
- 40 C
On-chip Adc
9-ch x 10-bit
Package
48TQFP
Device Core
AVR32
Family Name
AT32
Maximum Speed
50 MHz
Operating Supply Voltage
1.8|3.3 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT32UC3L064-AUT
Manufacturer:
HONGFA
Quantity:
30 000
Part Number:
AT32UC3L064-AUT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
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28.6.4
28.6.5
32099F–11/2010
Autonomous QTouch
Peripheral Events
For autonomous QTouch, a complete detection algorithm is implemented within the CAT mod-
ule. The additional parameters needed to control the autonomous QTouch detection algorithm
must be specified by the user in the ATCFG2 and ATCFG3 registers.
Autonomous QTouch sensitivity and out-of-touch sensitivity can be adjusted with the SENSE
and OUTSENS fields, respectively, in ATCFG2. Each field accepts values from one to 255
where 255 is the least sensitive setting. The value in the OUTSENS field should be smaller than
the value in the SENSE field.
To avoid false positives a detect integration filtering technique can be used. The number of suc-
cessive detects required is specified in the FILTER field of the ATCFG2 register.
To compensate for changes in capacitance the CAT can recalibrate the autonomous QTouch
sensor periodically. The timing of this calibration is done with the NDRIFT and PDRIFT fields in
the Configuration register, ATCFG3. It is recommended that the PDRIFT value is smaller than
the NDRIFT value.
The autonomous QTouch sensor will also recalibrate if the count value goes too far positive
beyond a threshold. This positive recalibration threshold is specified by the PTHR field in the
ATCFG3 register.
The following block diagram shows the sequence of acquisition and processing operations used
by the CAT module. The AISR written bit is internal and not visible in the user interface.
The peripheral event from the AST is used to trigger one iteration of autonomous touch detec-
tion when the chip is in a sleep mode that has disabled CLK_CAT. When CLK_CAT is disabled
and the peripheral event from the AST becomes active, a request will automatically be made to
enable CLK_CAT. When CLK_CAT is enabled, the CAT will perform one iteration of the autono-
mous touch detection algorithm. After this, the CLK_CAT will be disabled, and the CAT module
will remain in a frozen state until the next AST peripheral event.
The eight peripheral events from the analog comparators are automatically used by the CAT
when performing QMatrix acquisition. The CAT will automatically use the negative peripheral
events from the AC Interface on every Y pin in QMatrix mode. When QMatrix acquisition is used
the analog comparator corresponding to the selected Y pins must be enabled and converting
continuously, using the Y pin as the positive reference and the ACREFN as negative reference.
AT32UC3L016/32/64
665
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