AT32UC3A4256 Atmel Corporation, AT32UC3A4256 Datasheet - Page 966

• Manufacturer Part Number: AT32UC3A4256
• Manufacturer: Atmel Corporation

Specifications of AT32UC3A4256

• Flash (kbytes): 256 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 66 MHz
• Cpu: 32-bit AVR
• Hardware Qtouch Acquisition: No
• Usb Transceiver: 1
• Usb Speed: Hi-Speed
• Usb Interface: Device + OTG
• Spi: 6
• Twi (i2c): 2
• Uart: 4
• Ssc: 1
• Sd / Emmc: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 128
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.0 to 3.6
• Operating Voltage (vcc): 3.0 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

35.8.3
Table 35-19. Main Oscillators Characteristics
35.8.4
Table 35-20. PLL Characteristics
32072G–11/2011
Symbol
1/(t
C
ESR
t
t
t
C
I
Symbol
F
F
I
ST
CH
CL
OSC
PLL
OUT
IN
L1
IN
CPMAIN
, C
L2
)
Main Oscillators
Phase Lock Loop
Parameter
Oscillator Frequency
Internal Load Capacitance (C
Crystal Equivalent Series Resistance
Duty Cycle
Startup Time
XIN Clock High Half-period
XIN Clock Low Half-period
XIN Input Capacitance
Current Consumption
Parameter
VCO Output Frequency
Input Frequency (after input divider)
Current Consumption
L1
= C
L2
)
Conditions
External clock on XIN
Crystal
f = 400 KHz
f = 8 MHz
f = 16 MHz
f = 20 MHz
Active mode at 400 KHz. Gain = G0
Active mode at 8 MHz. Gain = G1
Active mode at 16 MHz. Gain = G2
Active mode at 20 MHz. Gain = G3
Conditions
Active mode (Fout=80 MHz)
Active mode (Fout=240 MHz)
0.4 t
0.4 t
Min.
Min.
0.4
40
80
4
CP
CP
Typ.
Typ.
205
250
600
1.4
50
25
30
45
95
7
4
1
7
0.6 t
0.6 t
Max.
Max.
240
50
20
75
60
16
CP
CP
MHz
MHz
MHz
MHz
Unit
Unit
ms
µA
pF
pF
µA
µA
%
Ω
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