AT32UC3L0256 Atmel Corporation, AT32UC3L0256 Datasheet - Page 836

• Manufacturer Part Number: AT32UC3L0256
• Manufacturer: Atmel Corporation

Specifications of AT32UC3L0256

• Flash (kbytes): 256 Kbytes
• Pin Count: 48
• Max. Operating Frequency: 50 MHz
• Cpu: 32-bit AVR
• # Of Touch Channels: 17
• Hardware Qtouch Acquisition: Yes
• Max I/o Pins: 36
• Ext Interrupts: 36
• Usb Speed: No
• Usb Interface: No
• Spi: 5
• Twi (i2c): 2
• Uart: 4
• Lin: 4
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 12
• Adc Speed (ksps): 460
• Analog Comparators: 8
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 16
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.62 to 3.6
• Operating Voltage (vcc): 1.62 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 6
• Output Compare Channels: 18
• Input Capture Channels: 12
• Pwm Channels: 35
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

35.3
35.3.1
35.3.2
35.3.3
32145A–12/2011
Rev. A
Device
FLASHCDW
Power Manager
1. JTAGID is wrong
1. General-purpose fuse programming does not work
2. Set Security Bit command does not work
3. Flash programming time is longer than specified
Table 35-1.
1. Clock Failure Detector (CFD) can be issued while turning off the CFD
2. Sleepwalking in idle and frozen sleep mode will mask all other PB clocks
Symbol
T
T
T
T
T
FPP
FPE
FFP
FEA
FCE
The JTAGID is 0x021DF03F.
Fix/Workaround
None.
The general-purpose fuses cannot be programmed and are stuck at 1. Please refer to the
Fuse Settings chapter in the FLASHCDW for more information about what functions are
affected.
Fix/Workaround
None.
The Set Security Bit (SSB) command of the FLASHCDW does not work. The device cannot
be locked from external JTAG, aWire, or other debug accesses.
Fix/Workaround
None.
The flash programming time is now:
Fix/Workaround
None.
While turning off the CFD, the CFD bit in the Status Register (SR) can be set. This will
change the main clock source to RCSYS.
Fix/Workaround
Solution 1: Enable CFD interrupt. If CFD interrupt is issues after turning off the CFD, switch
back to original main clock source.
Solution 2: Only turn off the CFD while running the main clock on RCSYS.
Parameter
Page programming time
Page erase time
Fuse programming time
Full chip erase time (EA)
JTAG chip erase time
(CHIP_ERASE)
Flash Characteristics
Conditions
f
f
CLK_HSB
CLK_HSB
= 115kHz
= 50MHz
AT32UC3L0128/256
Min
Typ
250
7.5
7.5
1
9
Max
Unit
ms
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