AT32UC3B0256-A2UR Atmel, AT32UC3B0256-A2UR Datasheet - Page 14
AT32UC3B0256-A2UR
Manufacturer Part Number
AT32UC3B0256-A2UR
Description
MCU AVR32 256K FLASH 64-TQFP
Manufacturer
Atmel
Series
AVR®32 UC3r
Datasheet
1.AT32UC3B1512-Z1UT.pdf
(692 pages)
Specifications of AT32UC3B0256-A2UR
Package / Case
64-TQFP, 64-VQFP
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Operating Temperature
-40°C ~ 85°C
Speed
60MHz
Number Of I /o
44
Core Processor
AVR
Program Memory Type
FLASH
Ram Size
32K x 8
Program Memory Size
256KB (256K x 8)
Data Converters
A/D 8x10b
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Connectivity
I²C, IrDA, SPI, SSC, UART/USART, USB
Core Size
32-Bit
Package
64TQFP
Device Core
AVR32
Family Name
AT32
Maximum Speed
60 MHz
Operating Supply Voltage
1.8|3.3 V
Data Bus Width
32 Bit
Number Of Programmable I/os
44
Interface Type
I2S/SPI/TWI/USART/USB
On-chip Adc
8-chx10-bit
Number Of Timers
3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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5.2
5.3
5.4
5.5
5.6
5.6.1
32059K–03/2011
RESET_N pin
TWI pins
GPIO pins
High drive pins
Power Considerations
Power Supplies
The RESET_N pin is a schmitt input and integrates a permanent pull-up resistor to VDDIO. As
the product integrates a power-on reset cell, the RESET_N pin can be left unconnected in case
no reset from the system needs to be applied to the product.
When these pins are used for TWI, the pins are open-drain outputs with slew-rate limitation and
inputs with inputs with spike-filtering. When used as GPIO-pins or used for other peripherals, the
pins have the same characteristics as GPIO pins.
All the I/O lines integrate a pull-up resistor. Programming of this pull-up resistor is performed
independently for each I/O line through the GPIO Controllers. After reset, I/O lines default as
inputs with pull-up resistors disabled, except when indicated otherwise in the column “Reset
Value” of the GPIO Controller user interface table.
The four pins PA20, PA21, PA22, PA23 have high drive output capabilities.
The AT32UC3B has several types of power supply pins:
•
•
•
•
•
The ground pins GND are common to VDDCORE, VDDIO and VDDPLL. The ground pin for
VDDANA is GNDANA.
For QFN packages, the center pad must be left unconnected.
Refer to
pins.
The main requirement for power supplies connection is to respect a star topology for all electrical
connection.
VDDIO: Powers I/O lines. Voltage is 3.3V nominal.
VDDANA: Powers the ADC Voltage is 3.3V nominal.
VDDIN: Input voltage for the voltage regulator. Voltage is 3.3V nominal.
VDDCORE: Powers the core, memories, and peripherals. Voltage is 1.8V nominal.
VDDPLL: Powers the PLL. Voltage is 1.8V nominal.
”Electrical Characteristics” on page 617
for power consumption on the various supply
AT32UC3B
14
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