AT32UC3A0512-ALUR Atmel, AT32UC3A0512-ALUR Datasheet - Page 371
![MCU 32BIT 512KB FLASH 144-LQFP](/photos/6/72/67244/144l1-lqfp_sml.jpg)
AT32UC3A0512-ALUR
Manufacturer Part Number
AT32UC3A0512-ALUR
Description
MCU 32BIT 512KB FLASH 144-LQFP
Manufacturer
Atmel
Series
AVR®32 UC3r
Specifications of AT32UC3A0512-ALUR
Core Processor
AVR
Core Size
32-Bit
Speed
66MHz
Connectivity
EBI/EMI, Ethernet, I²C, SPI, SSC, UART/USART, USB OTG
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
109
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
64K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
144-LQFP
For Use With
ATEVK1105 - KIT EVAL FOR AT32UC3A0ATAVRONEKIT - KIT AVR/AVR32 DEBUGGER/PROGRMMR770-1008 - ISP 4PORT ATMEL AVR32 MCU SPIATEVK1100 - KIT DEV/EVAL FOR AVR32 AT32UC3A
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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32058J–AVR32–04/11
– Byte Write Access
– Byte Select Access
Byte write access supports one byte write signal per byte of the data bus and a single read
signal.
Note that the SMC does not allow boot in Byte Write Access mode.
• For 16-bit devices: the SMC provides NWR0 and NWR1 write signals for respectively byte0
Byte Write Access is used to connect 2 x 8-bit devices as a 16-bit memory.
• For 32-bit devices: NWR0, NWR1, NWR2 and NWR3, are the write signals of byte0 (lower
Byte Write Access is used to connect 4 x 8-bit devices as a 32-bit memory.
Byte Write option is illustrated on
In this mode, read/write operations can be enabled/disabled at a byte level. One byte-select line
per byte of the data bus is provided. One NRD and one NWE signal control read and write.
• For 16-bit devices: the SMC provides NBS0 and NBS1 selection signals for respectively byte0
Byte Select Access is used to connect one 16-bit device.
• For 32-bit devices: NBS0, NBS1, NBS2 and NBS3, are the selection signals of byte0 (lower
Figure 27-8
mode, on NCS3 (BAT = Byte Select Access).
(lower byte) and byte1 (upper byte) of a 16-bit bus. One single read signal (NRD) is provided.
byte), byte1, byte2 and byte 3 (upper byte) respectively. One single read signal (NRD) is
provided.
(lower byte) and byte1 (upper byte) of a 16-bit bus.
byte), byte1, byte2 and byte 3 (upper byte) respectively. Byte Select Access is used to connect
two 16-bit devices.
shows how to connect two 16-bit devices on a 32-bit data bus in Byte Select Access
Figure
27-7.
AT32UC3A
371
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