AT32UC3L0256 Atmel Corporation, AT32UC3L0256 Datasheet - Page 57
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AT32UC3L0256
Manufacturer Part Number
AT32UC3L0256
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 AT32UC3L0256
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 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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT32UC3L0256-D3HR
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
AT32UC3L0256-H
Manufacturer:
ATMEL
Quantity:
270
Part Number:
AT32UC3L0256-H
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
7.9.4
7.9.4.1
32145AS–12/2011
SPI Timing
Master mode
Maximum SPI Frequency, Slave Input Mode
The maximum SPI slave input frequency is given by the following formula:
Where
on CPOL and NCPHA.
chapter for a description of this clock.
Maximum SPI Frequency, Slave Output Mode
The maximum SPI slave output frequency is given by the following formula:
Where
the SPI master setup time. Please refer to the SPI master datasheet for
maximum frequency of the CLK_SPI. Refer to the SPI chapter for a description of this
clock.
tics section for the maximum frequency of the pins.
Figure 7-13. SPI Master Mode with (CPOL= NCPHA= 0) or (CPOL= NCPHA= 1)
SPCK
MISO
MOSI
f
PINMAX
SPIn
SPIn
is the MOSI setup and hold time, USPI7 + USPI8 or USPI10 + USPI11 depending
is the maximum frequency of the SPI pins. Please refer to the I/O Pin Characteris-
is the MISO delay, USPI6 or USPI9 depending on CPOL and NCPHA.
f
SPI2
SPCKMAX
f
CLKSPI
f
SPCKMAX
=
is the maximum frequency of the CLK_SPI. Refer to the SPI
MIN
SPI0
(
f
---------------------------- - f
CLKSPI
=
MIN
9
×
(
f
---------------------------- -
2
CLKSPI
SPI1
,
PINMAX
9
×
2
AT32UC3L0128/256
,
,
----------- -
SPIn
------------------------------------
SPIn
1
)
+
1
t
SETUP
T
)
SETUP
.
f
CLKSPI
T
SETUP
is the
57
is