AT32UC3L0128 Atmel Corporation, AT32UC3L0128 Datasheet - Page 800
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AT32UC3L0128
Manufacturer Part Number
AT32UC3L0128
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(159 pages)
3.AT32UC3L0128.pdf
(85 pages)
4.AT32UC3L0128.pdf
(852 pages)
Specifications of AT32UC3L0128
Flash (kbytes)
128 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
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- AT32UC3A0128 PDF datasheet
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Table 32-11. Crystal Oscillator Characteristics
Notes:
32.6.2
32145A–12/2011
Symbol
f
C
C
t
I
OUT
STARTUP
OSC
L
i
1. Please refer to the SCIF chapter for details.
2. Nominal crystal cycles.
3. These values are based on simulation and characterization of other AVR microcontrollers manufactured in the same pro-
32KHz Crystal Oscillator (OSC32K) Characteristics
cess technology. These values are not covered by test limits in production.
Parameter
Crystal oscillator frequency
Crystal load capacitance
Internal equivalent load capacitance
Startup time
Current consumption
where the crystal load capacitance
can be found in the crystal datasheet. The capacitance of the external capacitors (C
then be computed as follows:
where C
Figure 32-3. Oscillator Connection
Figure 32-3
must choose a crystal oscillator where the crystal load capacitance C
in the table. The exact value of C
UC3L
C
PCB
i
(3)
is the capacitance of the PCB and
and the equation above also applies to the 32KHz oscillator connection. The user
(3)
XOUT
XIN
Conditions
SCIF.OSCCTRL.GAIN = 2
Active mode, f = 0.45MHz,
SCIF.OSCCTRL.GAIN = 0
Active mode, f = 10MHz,
SCIF.OSCCTRL.GAIN = 2
L
can then be found in the crystal datasheet.
C
C
L
LEXT
is within the range given in the table. The exact value of C
=
2 C
C
L
C
L
i
–
is the internal equivalent load capacitance.
C
(1)
i
–
C
PCB
AT32UC3L0128/256
0.45
Min
6
C
C
LEXT
LEXT
30 000
Typ
220
10
30
L
2
is within the range given
(2)
Max
16
18
LEXT
cycles
MHz
Unit
µA
pF
) can
800
L
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