AT32UC3A3256AU Atmel Corporation, AT32UC3A3256AU Datasheet - Page 225
AT32UC3A3256AU
Manufacturer Part Number
AT32UC3A3256AU
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(33 pages)
3.AT32UC3A0128.pdf
(159 pages)
4.AT32UC3A0128AU.pdf
(2 pages)
5.AT32UC3A3128.pdf
(91 pages)
6.AT32UC3A3128.pdf
(1012 pages)
Specifications of AT32UC3A3256AU
Flash (kbytes)
256 Kbytes
Pin Count
144
Max. Operating Frequency
66 MHz
Cpu
32-bit AVR
# Of Touch Channels
32
Hardware Qtouch Acquisition
No
Max I/o Pins
110
Ext Interrupts
110
Usb Transceiver
1
Usb Speed
Hi-Speed
Usb Interface
Device + OTG
Spi
6
Twi (i2c)
2
Uart
4
Lin
4
Ssc
1
Sd / Emmc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
384
Resistive Touch Screen
No
Dac Channels
2
Dac Resolution (bits)
16
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
128
Self Program Memory
YES
External Bus Interface
1
Dram Memory
sdram
Nand Interface
Yes
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.0 to 3.6
Operating Voltage (vcc)
3.0 to 3.6
Fpu
No
Mpu / Mmu
Yes / No
Timers
6
Output Compare Channels
18
Input Capture Channels
12
Pwm Channels
12
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
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Part Number
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Quantity
Price
- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- AT32UC3A0128 PDF datasheet #3
- AT32UC3A0128AU PDF datasheet #4
- AT32UC3A3128 PDF datasheet #5
- AT32UC3A3128 PDF datasheet #6
- Current page: 225 of 1012
- Download datasheet (16Mb)
Figure 16-5. Read Burst, 16-bit SDRAM Access
16.7.4
32072G–11/2011
SDRAMC_A[12:0]
Border Management
D[15:0]
SDWE
(Input)
SDCS
SDCK
RAS
CAS
When the memory row boundary has been reached, an automatic page break is inserted. In this
case, the SDRAMC generates a precharge command, activates the new row and initiates a read
or write command. To comply with SDRAM timing parameters, an additional clock cycle is
inserted between the precharge and active (t
(t
RCD
) commands. This is described in
Row n
t
RCD
= 3
Col a
CAS = 2
Col b
Figure 16-6 on page
Dna
Col c
RP
Dnb
) commands and between the active and read
Col d
Dnc
Col e
226.
Dnd
Col f
Dne
Dnf
225
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