AT32UC3L0256 Atmel Corporation, AT32UC3L0256 Datasheet - Page 819
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
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Table 32-42. SPI Timing, Master Mode
Note:
32145A–12/2011
Symbol
SPI0
SPI1
SPI2
SPI3
SPI4
SPI5
1. These values are based on simulation and characterization of other AVR microcontrollers manufactured in the same pro-
cess technology. These values are not covered by test limits in production.
Parameter
MISO setup time before SPCK rises
MISO hold time after SPCK rises
SPCK rising to MOSI delay
MISO setup time before SPCK falls
MISO hold time after SPCK falls
SPCK falling to MOSI delay
Figure 32-14. SPI Master Mode with (CPOL= 0 and NCPHA= 1) or (CPOL= 1 and NCPHA= 0)
Maximum SPI Frequency, Master Output
The maximum SPI master output frequency is given by the following formula:
Where
maximum frequency of the SPI pins. Please refer to the I/O Pin Characteristics section for the
maximum frequency of the pins.
Maximum SPI Frequency, Master Input
The maximum SPI master input frequency is given by the following formula:
Where
CPOL and NCPHA.
datasheet for
SPCK
MISO
MOSI
SPIn
SPIn
(1)
is the MOSI delay, SPI2 or SPI5 depending on CPOL and NCPHA.
is the MISO setup and hold time, SPI0 + SPI1 or SPI3 + SPI4 depending on
t
VALID
SPI5
.
t
VALID
is the SPI slave response time. Please refer to the SPI slave
f
SPCKMAX
f
SPCKMAX
SPI3
3.0V to 3.6V,
Conditions
V
capacitor =
maximum
VDDIO
external
40pF
=
from
MIN f
=
----------------------------------- -
SPIn
(
SPI4
PINMAX
33.4 + (t
29.2 + (t
+
1
t
VALID
,
Min
AT32UC3L0128/256
----------- -
SPIn
0
0
CLK_SPI
CLK_SPI
1
)
)/2
)/2
Max
8.63
7.1
f
PINMAX
Units
ns
is the
819
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