AT32UC3A4256S Atmel Corporation, AT32UC3A4256S Datasheet - Page 178

• Manufacturer Part Number: AT32UC3A4256S
• Manufacturer: Atmel Corporation

Specifications of AT32UC3A4256S

• 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: AES
• 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

15.3
Figure 15-1. SMC Block Diagram (AD_MSB=23)
15.4
15.5
32072G–11/2011
Block Diagram
I/O Lines Description
Product Dependencies
Manager
HMatrix
Power
Chip Select
CLK_SMC
Table 15-1.
In order to use this module, other parts of the system must be configured correctly, as described
below.
SMC
Pin Name
NCS[5:0]
NRD
NWR0/NWE
A0/NBS0
NWR1/NBS1
A[23:2]
D[15:0]
NWAIT
Peripheral Bus
User Interface
I/O Lines Description
SMC
Pin Description
Chip Select Lines
Read Signal
Write 0/Write Enable Signal
Address Bit 0/Byte 0 Select Signal
Write 1/Byte 1 Select Signal
Address Bus
Data Bus
External Wait Signal
A1/NWR2/NBS2
NWR0/NWE
NWR1/NBS1
NCS[5:0]
NRD
A0/NBS0
D[15:0]
NWAIT
A[AD_MSB:2]
Mux Logic
EBI
Controller
I/O
Input/Output
Output
Output
Output
Output
Output
Output
ADDR[AD_MSB:2]
DATA[15:0]
NCS[5:0]
NWE0
ADDR[0]
NRD
NWE1
NWAIT
ADDR[1]
Type
Input
Active Level
Low
Low
Low
Low
Low
Low
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