AT32UC3A3256S Atmel Corporation, AT32UC3A3256S Datasheet - Page 162
AT32UC3A3256S
Manufacturer Part Number
AT32UC3A3256S
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 AT32UC3A3256S
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
AES
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
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT32UC3A3256S-ALUT
Manufacturer:
MOLEX
Quantity:
20 000
Part Number:
AT32UC3A3256S-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: 162 of 1012
- Download datasheet (16Mb)
14. External Bus Interface (EBI)
14.1
14.2
32072G–11/2011
Features
Overview
Rev.: 1.7.0.1
•
•
•
•
•
The External Bus Interface (EBI) is designed to ensure the successful data transfer between
several external devices and the embedded memory controller of an 32-bit AVR device. The
Static Memory, SDRAM and ECCHRS Controllers are all featured external memory controllers
on the EBI. These external memory controllers are capable of handling several types of external
memory and peripheral devices, such as SRAM, PROM, EPROM, EEPROM, Flash, and
SDRAM.
The EBI also supports the CompactFlash and the NAND Flash/SmartMedia protocols via inte-
grated circuitry that greatly reduces the requirements for external components. Furthermore, the
EBI handles data transfers with up to six external devices, each assigned to six address spaces
defined by the embedded memory controller. Data transfers are performed through a 16-bit, an
address bus of up to 23 bits, up to six chip select lines (NCS[5:0]), and several control pins that
are generally multiplexed between the different external memory controllers.
Optimized for application memory space support
Integrates three external memory controllers:
Additional logic for NAND Flash/SmartMedia
Optimized external bus:16-bit data bus
Up to 6 Chip Selects, Configurable Assignment:
– Static Memory Controller (SMC)
– SDRAM Controller (SDRAMC)
– Error Corrected Code (ECCHRS) controller
– NAND Flash support: 8-bit as well as 16-bit devices are supported
– CompactFlash support: Attribute Memory, Common Memory, I/O modes are supported but
– Up to 24-bit Address Bus, Up to 8-Mbytes Addressable
– Optimized pin multiplexing to reduce latencies on external memories
– Static Memory Controller on Chip Select 0
– SDRAM Controller or Static Memory Controller on Chip Select 1
– Static Memory Controller on Chip Select 2, Optional NAND Flash support
– Static Memory Controller on Chip Select 3, Optional NAND Flash support
– Static Memory Controller on Chip Select 4, Optional CompactFlash
– Static Memory Controller on Chip Select 5, Optional CompactFlash
the signal _IOIS16 (I/O mode) is not handled.
TM
and CompactFlash
TM
support
TM
TM
support
support
162
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