AT32UC3B1128 Atmel Corporation, AT32UC3B1128 Datasheet - Page 40

• Manufacturer Part Number: AT32UC3B1128
• Manufacturer: Atmel Corporation

Specifications of AT32UC3B1128

• Flash (kbytes): 128 Kbytes
• Pin Count: 48
• Max. Operating Frequency: 60 MHz
• Cpu: 32-bit AVR
• # Of Touch Channels: 32
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 28
• Ext Interrupts: 28
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 3
• Twi (i2c): 1
• Uart: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 6
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 32
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.0-3.6 or (1.65-1.95+3.0-3.6)
• Operating Voltage (vcc): 3.0-3.6 or (1.65-1.95+3.0-3.6)
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 10
• Output Compare Channels: 16
• Input Capture Channels: 6
• Pwm Channels: 13
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

32059L–AVR32–01/2012
Figure 9-1.
Figure 9-2.
Figure 9-3.
In dual supply configuration, the power up sequence must be carefully managed to ensure a
safe startup of the device in all conditions.
The power up sequence must ensure that the internal logic is safely powered when the internal
reset (Power On Reset) is released and that the internal Flash logic is safely powered when the
CPU fetch the first instructions.
MCU Reset
MCU Reset
WDT Reset
MCU Reset
POR Reset
POR Reset
BOD Reset
VDDCORE
VDDCORE
VDDCORE
RESET_N
RESET_N
RESET_N
Internal
Internal
Internal
Internal
Internal
MCU Cold Start-Up RESET_N tied to VDDIN
MCU Cold Start-Up RESET_N Externally Driven
MCU Hot Start-Up
V
V
T
T
POR-
POR-
POR
POR
V
V
RESTART
RESTART
V
V
POR+
POR+
T
T
RST
RST
T
SSU1
T
T
SSU1
SSU2
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