AT32UC3A4256 Atmel Corporation, AT32UC3A4256 Datasheet - Page 221
AT32UC3A4256
Manufacturer Part Number
AT32UC3A4256
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(33 pages)
3.AT32UC3A0128.pdf
(159 pages)
4.AT32UC3A3128.pdf
(91 pages)
5.AT32UC3A3128.pdf
(1012 pages)
Specifications of AT32UC3A4256
Flash (kbytes)
256 Kbytes
Pin Count
100
Max. Operating Frequency
66 MHz
Cpu
32-bit AVR
Hardware Qtouch Acquisition
No
Usb Transceiver
1
Usb Speed
Hi-Speed
Usb Interface
Device + OTG
Spi
6
Twi (i2c)
2
Uart
4
Ssc
1
Sd / Emmc
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
128
Self Program Memory
YES
Dram Memory
No
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
6
Input Capture Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT32UC3A4256S-C1UR
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
AT32UC3A4256S-U
Manufacturer:
ST
Quantity:
79
Part Number:
AT32UC3A4256S-U
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- AT32UC3A0128 PDF datasheet #3
- AT32UC3A3128 PDF datasheet #4
- AT32UC3A3128 PDF datasheet #5
- Current page: 221 of 1012
- Download datasheet (16Mb)
16.5.2.1
Table 16-2.
Table 16-3.
Table 16-4.
Notes:
16.6
16.6.1
16.6.2
32072G–11/2011
27
27
27
26
26
26
BA[1:0]
1. M0 is the byte address inside a 16-bit halfword.
Product Dependencies
25
25
25
BA[1:0]
BA[1:0]
I/O Lines
Power Management
16-bit memory data bus width
24
24
24
BA[1:0]
BA[1:0]
BA[1:0]
SDRAM Configuration Mapping: 2K Rows, 256/512/1024/2048 Columns
SDRAM Configuration Mapping: 4K Rows, 256/512/1024/2048 Columns
SDRAM Configuration Mapping: 8K Rows, 256/512/1024/2048 Columns
23
23
23
BA[1:0]
BA[1:0]
BA[1:0]
22
22
22
BA[1:0]
BA[1:0]
In order to use this module, other parts of the system must be configured correctly, as described
below.
The SDRAMC module signals pass through the External Bus Interface (EBI) module where they
are multiplexed. The user must first configure the I/O controller to assign the EBI pins corre-
sponding to SDRAMC signals to their peripheral function. If I/O lines of the EBI corresponding to
SDRAMC signals are not used by the application, they can be used for other purposes by the
I/O Controller.
The SDRAMC must be properly stopped before entering in reset mode, i.e., the user must issue
a Deep power mode command in the Mode (MD) register and wait for the command to be
completed.
21
21
21
BA[1:0]
20
20
20
19
19
19
Row[12:0]
Row[11:0]
18
18
18
Row[10:0]
Row[12:0]
Row[11:0]
17
17
17
Row[10:0]
Row[12:0]
Row[11:0]
16
16
16
Row[10:0]
Row[12:0]
Row[11:0]
15
15
15
CPU Address Line
CPU Address Line
CPU Address Line
Row[10:0]
14
14
14
13
13
13
12
12
12
11
11
11
10
10
10
9
9
9
8
8
8
7
7
7
Column[10:0]
Column[10:0]
Column[10:0]
Column[9:0]
Column[9:0]
Column[9:0]
6
6
6
Column[8:0]
Column[8:0]
Column[8:0]
Column[7:0]
Column[7:0]
Column[7:0]
5
5
5
4
4
4
3
3
3
2
2
2
1
1
1
M0
M0
M0
M0
M0
M0
M0
M0
M0
M0
M0
M0
221
0
0
0
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