AT32UC3A0512-ALTTA Atmel, AT32UC3A0512-ALTTA Datasheet - Page 373
![IC MCU AVR32 512K FLASH 144LQFP](/photos/6/72/67244/144l1-lqfp_sml.jpg)
AT32UC3A0512-ALTTA
Manufacturer Part Number
AT32UC3A0512-ALTTA
Description
IC MCU AVR32 512K FLASH 144LQFP
Manufacturer
Atmel
Series
AVR®32 UC3r
Datasheet
1.ATEVK1104.pdf
(826 pages)
Specifications of AT32UC3A0512-ALTTA
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
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Table 27-2.
27.6.4
32058J–AVR32–04/11
Signal Name
Device Type
Byte Access Type (BAT)
NBS0_A0
NWE_NWR0
NBS1_NWR1
NBS2_NWR2_A1
NBS3_NWR3
Standard Read and Write Protocols
SMC Multiplexed Signal Translation
Figure 27-8. Connection of 2x16-bit Data Bus on a 32-bit Data Bus (Byte Select Option)
In the following sections, the byte access type is not considered. Byte select lines (NBS0 to
NBS3) always have the same timing as the A address bus. NWE represents either the NWE sig-
nal in byte select access type or one of the byte write lines (NWR0 to NWR3) in byte write
access type. NWR0 to NWR3 have the same timings and protocol as NWE. In the same way,
NCS represents one of the NCS[0..3] chip select lines.
Byte Select
1x32-bit
NBS0
NBS1
NBS2
NBS3
NWE
Byte Select
32-bit Bus
2x16-bit
NBS0
NBS1
NBS2
NBS3
SMC
NWE
D[31:16]
D[15:0]
NCS[3]
A[25:2]
NBS0
NBS1
NBS2
NBS3
NRD
NWE
Byte Write
4 x 8-bit
NWR0
NWR1
NWR2
NWR3
Byte Select
1x16-bit
NBS0
NBS1
NWE
A1
16-bit Bus
A[23:0]
Low Byte Enable
High Byte Enable
Read Enable
Memory Enable
D[15:0]
A[23:0]
Write Enable
D[31:16]
Write Enable
Low Byte Enable
High Byte Enable
Read Enable
Memory Enable
Byte Write
2 x 8-bit
NWR0
NWR1
A1
AT32UC3A
8-bit Bus
1 x 8-bit
NWE
A0
A1
373
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