AT32UC3B1256-AUR Atmel, AT32UC3B1256-AUR Datasheet - Page 623

• Manufacturer Part Number: AT32UC3B1256-AUR
• Description: MCU AVR32 256K FLASH 48-TQFP
• Manufacturer: Atmel
• Series: AVR®32 UC3r

Specifications of AT32UC3B1256-AUR

• Package / Case: 48-TQFP, 48-VQFP
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 60MHz
• Number Of I /o: 28
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Program Memory Size: 256KB (256K x 8)
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Connectivity: I²C, IrDA, SPI, SSC, UART/USART, USB
• Core Size: 32-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Table 28-7.
28.4.3
Table 28-8.
32059J–12/2010
Symbol
T
Symbol
V
V
V
V
V
T
T
T
T
BOD
DDRR
DDFR
POR+
POR-
RESTART
POR
RST
SSU1
SSU2
Reset Sequence
BOD Timing
Electrical Characteristics
Parameter
Minimum time with VDDCORE <
VBOD to detect power failure
Parameter
VDDCORE rise rate to ensure power-
on-reset
VDDCORE fall rate to ensure power-
on-reset
Rising threshold voltage: voltage up
to which device is kept under reset by
POR on rising VDDCORE
Falling threshold voltage: voltage
when POR resets device on falling
VDDCORE
On falling VDDCORE, voltage must
go down to this value before supply
can rise again to ensure reset signal
is released at V
Minimum time with VDDCORE <
V
Time for reset signal to be
propagated to system
Time for Cold System Startup: Time
for CPU to fetch its first instruction
(RCosc not calibrated)
Time for Hot System Startup: Time for
CPU to fetch its first instruction
(RCosc calibrated)
POR-
POR+
Conditions
Falling VDDCORE from 1.8V to 1.1V
Conditions
Rising VDDCORE:
V
Falling VDDCORE:
1.8V -> V
Falling VDDCORE:
1.8V -> V
Falling VDDCORE:
1.8V -> 1.1V
RESTART
-> V
POR+
RESTART
POR+
Min.
Min.
0.01
0.01
-0.1
480
1.4
1.2
Typ.
Typ.
1.55
300
200
420
1.3
15
AT32UC3B
Max.
Max.
1.65
800
400
400
960
1.4
0.5
V/ms
V/ms
Unit
Unit
ns
µs
µs
µs
µs
V
V
V
623