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型號：	AT32UC3A3256AU-ALUT
廠商：	Atmel
文件頁數(shù)：	15/94頁
文件大?。?/td>	0K
描述：	IC MCU 256KB FLASH 144LQFP
產(chǎn)品培訓模塊：	AVR® UC3 Introduction
標準包裝：	300
系列：	AVR®32 UC3 A3 Audio
核心處理器：	AVR
芯體尺寸：	32-位
速度：	66MHz
連通性：	EBI/EMI，I²C，IrDA，MMC，SPI，SSC，UART/USART，USB OTG
外圍設備：	欠壓檢測/復位，DMA，POR，WDT
輸入/輸出數(shù)：	110
程序存儲器容量：	256KB（256K x 8）
程序存儲器類型：	閃存
RAM 容量：	128K x 8
電壓 - 電源 (Vcc/Vdd)：	1.65 V ~ 1.95 V
數(shù)據(jù)轉換器：	A/D 8x10b
振蕩器型：	內(nèi)部
工作溫度：	-40°C ~ 85°C
封裝/外殼：	144-LQFP
包裝：	托盤

32072SH–AVR32–10/2012

AT32UC3A3

The register file is organized as sixteen 32-bit registers and includes the Program Counter, the

Link Register, and the Stack Pointer. In addition, register R12 is designed to hold return values

from function calls and is used implicitly by some instructions.

4.3

The AVR32UC CPU

The AVR32UC CPU targets low- and medium-performance applications, and provides an

advanced OCD system, no caches, and a Memory Protection Unit (MPU). Java acceleration

hardware is not implemented.

AVR32UC provides three memory interfaces, one High Speed Bus master for instruction fetch,

one High Speed Bus master for data access, and one High Speed Bus slave interface allowing

other bus masters to access data RAMs internal to the CPU. Keeping data RAMs internal to the

CPU allows fast access to the RAMs, reduces latency, and guarantees deterministic timing.

Also, power consumption is reduced by not needing a full High Speed Bus access for memory

accesses. A dedicated data RAM interface is provided for communicating with the internal data

RAMs.

A local bus interface is provided for connecting the CPU to device-specific high-speed systems,

such as floating-point units and fast GPIO ports. This local bus has to be enabled by writing the

LOCEN bit in the CPUCR system register. The local bus is able to transfer data between the

CPU and the local bus slave in a single clock cycle. The local bus has a dedicated memory

range allocated to it, and data transfers are performed using regular load and store instructions.

Details on which devices that are mapped into the local bus space is given in the Memories

chapter of this data sheet.

Figure 4-1 on page 23 displays the contents of AVR32UC.

相關代理商/技術參數(shù)	參數(shù)描述
AT32UC3A3256-CTUR	功能描述:32位微控制器 - MCU 256KB, 144FFBGA Ind RoHS:否制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風格:SMD/SMT
AT32UC3A3256-CTUT	功能描述:32位微控制器 - MCU 256KB, 144FFBGA Ind RoHS:否制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風格:SMD/SMT
AT32UC3A3256-CTUT SL383	制造商:Atmel Corporation 功能描述:
AT32UC3A3256-DDW	功能描述:32位微控制器 - MCU UC3A3 256Kb flash - 256Kflash UC3A - Wafer RoHS:否制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風格:SMD/SMT
AT32UC3A3256S	制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:32-bit AVR? Microcontroller

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