AT32UC3L064-AUT Atmel, AT32UC3L064-AUT Datasheet - Page 159
![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: 159 of 858
- Download datasheet (13Mb)
12.6.6.1
12.6.6.2
12.6.7
12.6.8
32099F–11/2010
Clock Failure Detector
Interrupts
Power-On Detector
External Reset
When a Reset occurs, some parts of the chip are not necessarily reset, depending on the reset
source. Only the Power On Reset (POR) will force a reset of the whole chip. Refer to the module
configuration chapter to know the effect of the different reset events.
The table located in the module configuration chapter lists parts of the device that are reset,
depending on the reset source.The cause of the last reset can be read from the RCAUSE regis-
ter. This register contains one bit for each reset source, and can be read during the boot
sequence of an application to determine the proper action to be taken.
The Power-On Detector monitors the VDDCORE supply pin and generates a reset when the
device is powered on. The reset is active until the supply voltage from the linear regulator is
above the power-on threshold level. The reset will be re-activated if the voltage drops below the
power-on threshold level. See Electrical Characteristics for parametric details.
The external reset detector monitors the state of the RESET_N pin. By default, a low level on
this pin will generate a reset.
This mechanism allows switching the main clock to the safe RCSYS clock, when the main clock
source is considered off. This may happen when a external crystal is selected as the clock
source of the main clock but the crystal is not mounted on the board. The mechanism is to
detect, during a RCSYS period, at least one rising edge of the main clock. If no rising edge is
seen the clock is considered failed.
Example:
* RCSYS = 115khz
=> Failure detected if the main clock is < 115 kHz
As soon as the detector is enabled, the clock failure detector will monitor the divided main clock.
Note that the detector does not monitor if the RCSYS is the source of the main clock, or if the
main clock is temporarily not available (startup-time after a wake-up, switching timing etc.), or in
sleep mode where the main clock is driven by the RCSYS (Stop and DeepStop mode). When a
clock failure is detected, the main clock automatically switches to the RCSYS clock and the CFD
interrupt is generated if enabled.
The MCCTRL register that selects the source clock of the main clock is changed by hardware to
indicate that the main clock comes from RCSYS.
The PM has a number of interrupts:
• AE: Access Error, set if a lock protected register is written without first being unlocked.
• CKRDY: Clock Ready, set when new CKSEL settings are effective.
• CFD: Clock Failure Detected, set if the system detects that the main clock is not running.
AT32UC3L016/32/64
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