AT32UC3L064-AUT Atmel, AT32UC3L064-AUT Datasheet - Page 197
![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
- Current page: 197 of 858
- Download datasheet (13Mb)
13.5.11
13.5.12
13.5.13
32099F–11/2010
Backup Registers (BR)
32kHz RC Oscillator (RC32K)
Generic Clocks
Rev: AVR32.1
Four 32-bit backup registers are available to store values when the chip is in Shutdown mode.
These registers will keep their content even when the VDDCORE and VDDIO supplies are
removed. The backup registers can be accessed by reading and writing the BR0, BR1, BR2,
and BR3 registers.
After writing to one of the backup registers the user must wait until the Backup Register Interface
Ready (BRIFARDY) bit in PCLKSR is set before writing to another backup register. Writes to the
backup register while BRIFARDY is zero will be discarded. An interrupt can be generated on a
zero-to-one transition on BRIFARDY.
After powering up the device the Backup Register Interface Valid (BRIFAVALID) bit in PCLKSR
is cleared, indicating that the contents of the backup registers has not been written and contains
the reset value. After writing one of the backup registers the BRIFAVALID bit is set. During
writes to the backup registers (when BRIFARDY is zero) BRIFAVALID will be zero. If a reset
occurs when BRIFRDY is zero, BRIFAVALID will be cleared after the reset, indicating that the
contents of the backup registers are not valid. If BRIFARDY was one when the reset occurred,
BRIFAVALID will be one and the contents are the same as before the reset.
The user must ensure that BRIFAVALID and BRIFARDY are both set before reading the backup
register values.
Rev: 1.0.0.0
The RC32K can be used as source for the generic clocks, as described in The Generic Clocks
section.
The 32 kHz RC oscillator (RC32K) is forced on after reset, and output on PA20. The clock is
available on the pad until the PPCR.RC32OUT bit in the Power Manager has been cleared or a
different peripheral function has been chosen on port PA20 (port PA20 will start with peripheral
function “F” by default). Note that the forcing will only enable the clock output. To be able to use
the RC32K normally the oscillator must be enabled as described below.
The oscillator is enabled by writing a one to the Enable bit (EN) bit in the 32 kHz RC Oscillator
Configuration Register (RC32KCR) and disabled by writing a zero to RC32KCR.EN. The oscilla-
tor is also automatically enabled when the sampling mode is requested for the SM33. In this
case, writing a zero to RC32KCR.EN will not disable the RC32K until the sampling mode is no
longer requested.
Rev: 1.0.0.0
Timers, communication modules, and other modules connected to external circuitry may require
specific clock frequencies to operate correctly. The SCIF defines a number of generic clocks that
can provide a wide range of accurate clock frequencies.
Each generic clock runs from either clock source listed in the “Generic Clock Sources” table in
the SCIF Module Configuration section. The selected source can optionally be divided by any
even integer up to 512. Each clock can be independently enabled and disabled, and is also
automatically disabled along with peripheral clocks by the Sleep Controller in the Power
Manager.
AT32UC3L016/32/64
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