AT32UC3B1256-AUR Atmel, AT32UC3B1256-AUR Datasheet - Page 219

MCU AVR32 256K FLASH 48-TQFP

AT32UC3B1256-AUR

Manufacturer Part Number
AT32UC3B1256-AUR
Description
MCU AVR32 256K FLASH 48-TQFP
Manufacturer
Atmel
Series
AVR®32 UC3r
Datasheet

Specifications of AT32UC3B1256-AUR

Package / Case
48-TQFP, 48-VQFP
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Operating Temperature
-40°C ~ 85°C
Speed
60MHz
Number Of I /o
28
Core Processor
AVR
Program Memory Type
FLASH
Ram Size
32K x 8
Program Memory Size
256KB (256K x 8)
Data Converters
A/D 6x10b
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Connectivity
I²C, IrDA, SPI, SSC, UART/USART, USB
Core Size
32-Bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-

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• BITS: Bits Per Transfer
• CSAAT: Chip Select Active After Transfer
• CSNAAT: Chip Select Not Active After Transfer
• NCPHA: Clock Phase
• CPOL: Clock Polarity
32059J–12/2010
The BITS field determines the number of data bits transferred. Reserved values should not be used.
0: The Peripheral Chip Select Line rises as soon as the last transfer is achieved.
1: The Peripheral Chip Select does not rise after the last transfer is achieved. It remains active until a new transfer is requested
on a different chip select.
0 = The Peripheral Chip Select Line rises as soon as the last transfer is acheived
1 = The Peripheral Chip Select Line rises after every transfer
CSNAAT can be used to force the Peripheral Chip Select Line to go inactive after every transfer. This allows successful
interfacing to SPI slave devices that require this behavior.
0: Data is changed on the leading edge of SPCK and captured on the following edge of SPCK.
1: Data is captured on the leading edge of SPCK and changed on the following edge of SPCK.
NCPHA determines which edge of SPCK causes data to change and which edge causes data to be captured. NCPHA is used
with CPOL to produce the required clock/data relationship between master and slave devices.
0: The inactive state value of SPCK is logic level zero.
1: The inactive state value of SPCK is logic level one.
CPOL is used to determine the inactive state value of the serial clock (SPCK). It is used with NCPHA to produce the required
clock/data relationship between master and slave devices.
BITS
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
Bits Per Transfer
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
10
11
12
13
14
15
16
8
9
AT32UC3B
219

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