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参数资料
型号： AT32UC3A3128-CTUT
厂商： Atmel
文件页数： 33/94页
文件大小： 0K
描述： IC MCU 128KB FLASH 144TBGA
产品培训模块： MCU Product Line Introduction
AVR® UC3 Introduction
标准包装： 840
系列： AVR®32 UC3 A3
核心处理器： AVR
芯体尺寸： 32-位
速度： 66MHz
连通性： EBI/EMI，I²C，IrDA，MMC，SPI，SSC，UART/USART，USB OTG
外围设备： 欠压检测/复位，DMA，POR，WDT
输入/输出数： 110
程序存储器容量： 128KB（128K x 8）
程序存储器类型： 闪存
RAM 容量： 128K x 8
电压 - 电源 (Vcc/Vdd)： 1.65 V ~ 1.95 V
数据转换器： A/D 8x10b
振荡器型： 内部
工作温度： -40°C ~ 85°C
封装/外壳： 144-TFBGA
包装： 托盘
配用： ATEVK1104-ND - KIT DEV/EVAL FOR AVR32 AT32UC3A
ATAVRONEKIT-ND - KIT AVR/AVR32 DEBUGGER/PROGRMMR
ATEVK1100-ND - KIT DEV/EVAL FOR AVR32 AT32UC3A
39
32072SH–AVR32–10/2012
AT32UC3A3
6.
Boot Sequence
This chapter summarizes the boot sequence of the AT32UC3A3/A4. The behavior after power-
up is controlled by the Power Manager. For specific details, refer to Section 7. ”Power Manager
(PM)” on page 86.
6.1
Starting of Clocks
After power-up, the device will be held in a reset state by the Power-On Reset circuitry, until the
power has stabilized throughout the device. Once the power has stabilized, the device will use
the internal RC Oscillator as clock source.
On system start-up, the PLLs are disabled. All clocks to all modules are running. No clocks have
a divided frequency, all parts of the system receives a clock with the same frequency as the
internal RC Oscillator.
6.2
Fetching of Initial Instructions
After reset has been released, the AVR32 UC CPU starts fetching instructions from the reset
address, which is 0x8000_0000. This address points to the first address in the internal Flash.
The internal Flash uses VDDIO voltage during read and write operations. BOD33 monitors this
voltage and maintains the device under reset until VDDIO reaches the minimum voltage, pre-
venting any spurious execution from flash.
The code read from the internal Flash is free to configure the system to use for example the
PLLs, to divide the frequency of the clock routed to some of the peripherals, and to gate the
clocks to unused peripherals.
When powering up the device, there may be a delay before the voltage has stabilized, depend-
ing on the rise time of the supply used. The CPU can start executing code as soon as the supply
is above the POR threshold, and before the supply is stable. Before switching to a high-speed
clock source, the user should use the BOD to make sure the VDDCORE is above the minimum-
level (1.62V).
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相关代理商/技术参数
参数描述
AT32UC3A3128-D 功能描述:32位微控制器 - MCU 128Kflash UC3A - Die in waffle pack - 13 RoHS:否 制造商:Texas Instruments 核心:C28x 处理器系列:TMS320F28x 数据总线宽度:32 bit 最大时钟频率:90 MHz 程序存储器大小:64 KB 数据 RAM 大小:26 KB 片上 ADC:Yes 工作电源电压:2.97 V to 3.63 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:LQFP-80 安装风格:SMD/SMT
AT32UC3A3128-DDW 功能描述:32位微控制器 - MCU 128Kflash UC3A - Wafer RoHS:否 制造商:Texas Instruments 核心:C28x 处理器系列:TMS320F28x 数据总线宽度:32 bit 最大时钟频率:90 MHz 程序存储器大小:64 KB 数据 RAM 大小:26 KB 片上 ADC:Yes 工作电源电压:2.97 V to 3.63 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:LQFP-80 安装风格:SMD/SMT
AT32UC3A3128S 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:32-bit AVR? Microcontroller
AT32UC3A3128S-ALUR 功能描述:32位微控制器 - MCU 128KB, 144LQFP Ind, w/AES Mod. RoHS:否 制造商:Texas Instruments 核心:C28x 处理器系列:TMS320F28x 数据总线宽度:32 bit 最大时钟频率:90 MHz 程序存储器大小:64 KB 数据 RAM 大小:26 KB 片上 ADC:Yes 工作电源电压:2.97 V to 3.63 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:LQFP-80 安装风格:SMD/SMT
AT32UC3A3128S-ALUT 功能描述:32位微控制器 - MCU 128KB, 144LQFP Ind, w/AES Mod. RoHS:否 制造商:Texas Instruments 核心:C28x 处理器系列:TMS320F28x 数据总线宽度:32 bit 最大时钟频率:90 MHz 程序存储器大小:64 KB 数据 RAM 大小:26 KB 片上 ADC:Yes 工作电源电压:2.97 V to 3.63 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:LQFP-80 安装风格:SMD/SMT
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