AT32UC3L016 Atmel Corporation, AT32UC3L016 Datasheet - Page 36
AT32UC3L016
Manufacturer Part Number
AT32UC3L016
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(159 pages)
3.AT32UC3L016.pdf
(843 pages)
4.AT32UC3L016.pdf
(110 pages)
Specifications of AT32UC3L016
Flash (kbytes)
16 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)
8
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
- AT32UC3A0128 PDF datasheet #2
- AT32UC3L016 PDF datasheet #3
- AT32UC3L016 PDF datasheet #4
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- Download datasheet (13Mb)
6. Supply and Startup Considerations
6.1
6.1.1
6.1.2
6.1.3
32099G–06/2011
Supply Considerations
Power Supplies
Voltage Regulator
Regulator Connection
The AT32UC3L has several types of power supply pins:
The ground pins GND are common to VDDCORE, VDDIO, and VDDIN. The ground pin for
VDDANA is GNDANA.
When VDDCORE is not connected to VDDIN, the VDDIN voltage must be higher than 1.98V.
Refer to
For decoupling recommendations for the different power supplies, please refer to the schematic
checklist.
The AT32UC3L embeds a voltage regulator that converts from 3.3V nominal to 1.8V with a load
of up to 60mA. The regulator supplies the output voltage on VDDCORE. The regulator may only
be used to drive internal circuitry in the device. VDDCORE should be externally connected to the
1.8V domains. See
Adequate output supply decoupling is mandatory for VDDCORE to reduce ripple and avoid
oscillations. The best way to achieve this is to use two capacitors in parallell between
VDDCORE and GND as close to the chip as possible. Please refer to
781
Figure 6-1.
The AT32UC3L supports three power supply configurations:
3.3V
1.8V
•VDDIO: Powers I/O lines. Voltage is 1.8 to 3.3V nominal.
•VDDIN: Powers I/O lines and the internal regulator. Voltage is 1.8 to 3.3V nominal.
•VDDANA: Powers the ADC. Voltage is 1.8V nominal.
•VDDCORE: Powers the core, memories, and peripherals. Voltage is 1.8V nominal.
• 3.3V single supply mode
• 1.8V single supply mode
• 3.3V supply mode, with 1.8V regulated I/O lines
for decoupling capacitors values and regulator characteristics.
Section 32. on page 767
Supply Decoupling
C
Section 6.1.3
IN3
C
C
for regulator connection figures.
OUT2
for power consumption on the various supply pins.
IN2
C
C
OUT1
IN1
VDDCORE
AT32UC3L016/32/64
VDDIN
Section 32.9.1 on page
Regulator
1.8V
36
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