ATUC256L4U Atmel Corporation, ATUC256L4U Datasheet - Page 29
ATUC256L4U
Manufacturer Part Number
ATUC256L4U
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(159 pages)
3.ATUC128L4U.pdf
(960 pages)
4.ATUC128L4U.pdf
(92 pages)
Specifications of ATUC256L4U
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 Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
1
Twi (i2c)
2
Uart
4
Lin
4
Ssc
1
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
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Manufacturer:
ATMEL
Quantity:
148
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Manufacturer:
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Quantity:
20 000
Company:
Part Number:
ATUC256L4U-U
Manufacturer:
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129
Company:
Part Number:
ATUC256L4U-UES
Manufacturer:
ATMEL
Quantity:
3
5.1.3.3
32142AS–12/2011
3.3V Supply Mode with 1.8V Regulated I/O Lines
In this mode, the internal regulator is connected to the 3.3V source and its output is connected
to both VDDCORE and VDDIO as shown in
use Shutdown mode.
Figure 5-4.
In this mode, some I/O lines are powered by VDDIN while other I/O lines are powered by VDDIO.
Refer to
Refer to the Power Manager chapter for a description of what parts of the system are powered in
Shutdown mode.
Important note: As the regulator has a maximum output current of 60 mA, this mode can only be
used in applications where the maximum I/O current is known and compatible with the core and
peripheral power consumption. Typically, great care must be used to ensure that only a few I/O
lines are toggling at the same time and drive very small loads.
1.98-3.6V
Section on page 10
VD D AN A
V D D C O R E
3.3V Supply Mode with 1.8V Regulated I/O Lines
+
-
for description of power supply for each I/O line.
VD D IN
O SC 32K_2,
AST, W ake,
R egulator
regulator
I/O Pins
control
Linear
Figure
AD C
G N D AN A
5-4. This configuration is required in order to
ATUC64/128/256L3/4U
V D D IO
Peripherals,
SC IF, BO D ,
DFLL, PLL
M em ories,
O SC32K,
R C SYS,
I/O Pins
PO R33,
R C 32K,
SM 33
CPU,
G N D
29