AT32UC3B0512-A2UT Atmel, AT32UC3B0512-A2UT Datasheet - Page 101
AT32UC3B0512-A2UT
Manufacturer Part Number
AT32UC3B0512-A2UT
Description
IC MCU AVR32 512K FLASH 64TQFP
Manufacturer
Atmel
Series
AVR®32 UC3r
Specifications of AT32UC3B0512-A2UT
Core Processor
AVR
Core Size
32-Bit
Speed
60MHz
Connectivity
I²C, IrDA, SPI, SSC, UART/USART, USB
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number Of I /o
44
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
96K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
Controller Family/series
AT32UC3B
No. Of I/o's
44
Ram Memory Size
96KB
Cpu Speed
60MHz
No. Of Timers
1
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Manufacturer
Quantity
Price
Company:
Part Number:
AT32UC3B0512-A2UT
Manufacturer:
MURATA
Quantity:
11 450
Part Number:
AT32UC3B0512-A2UT
Manufacturer:
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13.6.2
Figure 13-2. Timing Diagram, Synchronous Interrupts, High Level or Rising Edge
Figure 13-3. Timing Diagram, Synchronous Interrupts, Low Level or Falling Edge
32059K–03/2011
EXTINTn/NMI
EXTINTn/NMI
FILTER off
FILTER on
FILTER off
FILTER on
ISR.INTn:
ISR.INTn:
ISR.INTn:
ISR.INTn:
CLK_SYNC
CLK_SYNC
Synchronization and Filtering of External Interrupts
gate to the interrupt controller. However, the corresponding bit in ISR will be set, and
EIC_WAKE will be set.
If the CTRL.INTn bit is zero, then the corresponding bit in ISR will always be zero. Disabling an
external interrupt by writing to the DIS.INTn bit will clear the corresponding bit in ISR.
In synchronous mode the pin value of the EXTINTn pin is synchronized to CLK_SYNC, so
spikes shorter than one CLK_SYNC cycle are not guaranteed to produce an interrupt. The syn-
chronization of the EXTINTn to CLK_SYNC will delay the propagation of the interrupt to the
interrupt controller by two cycles of CLK_SYNC, see
on page 101
It is also possible to apply a filter on EXTINTn by writing a one to INTn bit in the FILTER register.
This filter is a majority voter, if the condition for an interrupt is true for more than one of the latest
three cycles of CLK_SYNC the interrupt will be set. This will additionally delay the propagation of
the interrupt to the interrupt controller by one or two cycles of CLK_SYNC, see
page 101
and
for examples (FILTER off).
Figure 13-3 on page 101
for examples (FILTER on).
Figure 13-2 on page 101
AT32UC3B
and
Figure 13-2 on
Figure 13-3
101
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