AT32UC3A0512AU Atmel Corporation, AT32UC3A0512AU Datasheet - Page 57
AT32UC3A0512AU
Manufacturer Part Number
AT32UC3A0512AU
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(98 pages)
2.AT32UC3A0128.pdf
(826 pages)
3.AT32UC3A0128.pdf
(377 pages)
4.AT32UC3A0128.pdf
(33 pages)
5.AT32UC3A0128.pdf
(159 pages)
6.AT32UC3A0128AU.pdf
(2 pages)
Specifications of AT32UC3A0512AU
Flash (kbytes)
512 Kbytes
Pin Count
144
Max. Operating Frequency
66 MHz
Cpu
32-bit AVR
# Of Touch Channels
32
Hardware Qtouch Acquisition
No
Max I/o Pins
109
Ext Interrupts
109
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device + OTG
Spi
6
Twi (i2c)
1
Uart
4
Ssc
1
Ethernet
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
384
Resistive Touch Screen
No
Dac Channels
2
Dac Resolution (bits)
16
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
64
Self Program Memory
YES
External Bus Interface
1
Dram Memory
sdram
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
Available stocks
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Price
- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- AT32UC3A0128 PDF datasheet #3
- AT32UC3A0128 PDF datasheet #4
- AT32UC3A0128 PDF datasheet #5
- AT32UC3A0128AU PDF datasheet #6
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- Download datasheet (11Mb)
O s c 1
c lo c k
32058K AVR32-01/12
O s c 0
13.5.4.1
c lo c k
P L L O S C
0
1
Enabling the PLL
D iv id e r
P L L D I V
I n p u t
divide the output of the PLL by two and bring the clock in range of the max frequency of the
CPU.
When the PLL is switched on, or when changing the clock source or multiplication factor for the
PLL, the PLL is unlocked and the output frequency is undefined. The PLL clock for the digital
logic is automatically masked when the PLL is unlocked, to prevent connected digital logic from
receiving a too high frequency and thus become unstable.
Figure 13-3. PLL with control logic and filters
PLLn is enabled by writing the PLLEN bit in the PLLn register. PLLOSC selects Oscillator 0 or 1
as clock source. The PLLMUL and PLLDIV bitfields must be written with the multiplication and
division factors, respectively, creating the voltage controlled ocillator frequency f
frequency f
If PLLOPT[1] field is set to 0:
If PLLOPT[1] field is set to 1:
The PLLn:PLLOPT field should be set to proper values according to the PLL operating fre-
quency. The PLLOPT field can also be set to divide the output frequency of the PLLs by 2.
The lock signal for each PLL is available as a LOCKn flag in POSCSR. An interrupt can be gen-
erated on a 0 to 1 transition of these bits.
f
f
f
f
VCO
VCO
PLL
PLL
= f
= f
= (PLLMUL+1)/(PLLDIV) • f
= 2*(PLLMUL+1) • f
PLL
D iv id e r
O u t p u t
D e t e c t o r
P L L M U L
VCO.
VCO
P h a s e
:
/ 2
.
P L L O P T
V C O
OSC
if PLLDIV = 0.
f
OSC
v c o
if PLLDIV > 0.
D e t e c t o r
1 / 2
L o c k
P L L O P T [ 1 ]
0
1
f
P L L
M a s k
AT32UC3A
VCO
L o c k b it
and the PLL
P L L c lo c k
57
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