AT32UC3B0256-A2UR Atmel, AT32UC3B0256-A2UR Datasheet - Page 376
![MCU AVR32 256K FLASH 64-TQFP](/photos/6/81/68127/313-64-vqfp_sml.jpg)
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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22.7.1.8
32059K–03/2011
Plug-In detection
Figure 22-10. Pad Events
The SUSP bit is set and the Wake-Up Interrupt (WAKEUP) bit in UDINT is cleared when a USB
“Suspend” state has been detected on the USB bus. This event automatically puts the USB pad
in the Idle state. The detection of a non-idle event sets WAKEUP, clears SUSP and wakes up
the USB pad.
Moreover, the pad goes to the Idle state if the macro is disabled or if the DETACH bit is written to
one. It returns to the Active state when USBE is written to one and DETACH is written to zero.
The USB connection is detected from the USB_VBUS pad.
architecture of the plug-in detector.
Figure 22-11. Plug-In Detection Input Block Diagram
The control logic of the USB_VBUS pad outputs two signals:
In device mode, the USBSTA.VBUS bit follows the Session_valid comparator output:
• The Session_valid signal is high when the voltage on the USB_VBUS pad is higher than or
• The Va_Vbus_valid signal is high when the voltage on the USB_VBUS pad is higher than or
• It is set when the voltage on the USB_VBUS pad is higher than or equal to 1.4V.
equal to 1.4V.
equal to 4.4V.
USB_VBUS
SUSP
WAKEUP
PAD State
Pad Logic
GND
VDD
Suspend detected
Active
Session_valid
Va_Vbus_valid
VBus_pulsing
VBus_discharge
Wake-up detected
Idle
Logic
Cleared on wake-up
USBSTA
Cleared by software to acknowledge the interrupt
Figure 22-11 on page 376
VBUS
Active
AT32UC3B
VBUSTI
USBSTA
shows the
376
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