参数资料
型号: AT32UC3A3256-CTUT
厂商: Atmel
文件页数: 13/94页
文件大小: 0K
描述: IC MCU AVR32 256KB FLASH 144TBGA
产品培训模块: AVR UC3 Audio Application
MCU Product Line Introduction
AVR EVK1105 Digital Audio Gateway Kit
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: 256KB(256K 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
产品目录页面: 615 (CN2011-ZH PDF)
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
20
32072SH–AVR32–10/2012
AT32UC3A3
3.5
Power Considerations
3.5.1
Power Supplies
The AT32UC3A3 has several types of power supply pins:
VDDIO: Powers I/O lines. Voltage is 3.3V nominal
VDDANA: Powers the ADC. Voltage is 3.3V nominal
VDDIN: Input voltage for the voltage regulator. Voltage is 3.3V nominal
VDDCORE: Output voltage from regulator for filtering purpose and provides the supply to the
core, memories, and peripherals. Voltage is 1.8V nominal
The ground pin GNDCORE is common to VDDCORE and VDDIN. The ground pin for VDDANA
is GNDANA. The ground pins for VDDIO are GNDIO.
Refer to Electrical Characteristics chapter for power consumption on the various supply pins.
3.5.2
Voltage Regulator
The AT32UC3A3 embeds a voltage regulator that converts from 3.3V to 1.8V with a load of up
to 100 mA. The regulator takes its input voltage from VDDIN, and supplies the output voltage on
VDDCORE and powers the core, memories and peripherals.
Adequate output supply decoupling is mandatory for VDDCORE to reduce ripple and avoid
oscillations.
The best way to achieve this is to use two capacitors in parallel between VDDCORE and
GNDCORE:
One external 470pF (or 1nF) NPO capacitor (COUT1) should be connected as close to the
chip as possible.
One external 2.2F (or 3.3F) X7R capacitor (COUT2).
Adequate input supply decoupling is mandatory for VDDIN in order to improve startup stability
and reduce source voltage drop.
The input decoupling capacitor should be placed close to the chip, e.g., two capacitors can be
used in parallel (1nF NPO and 4.7F X7R).
For decoupling recommendations for VDDIO and VDDANA please refer to the Schematic
checklist.
3.3V
1.8V
VDDIN
VDDCORE
1.8V
Regulator
C
IN1
C
OUT1
C
OUT2
C
IN2
相关PDF资料
PDF描述
VE-2NZ-IY-F2 CONVERTER MOD DC/DC 2V 20W
AT91M55800A-33CJ IC ARM MCU 16BIT 176BGA
VE-2NZ-IY-F1 CONVERTER MOD DC/DC 2V 20W
VE-2NZ-IX-F3 CONVERTER MOD DC/DC 2V 30W
VE-2NZ-IX-F2 CONVERTER MOD DC/DC 2V 30W
相关代理商/技术参数
参数描述
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 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
AT32UC3A3256S 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:32-bit AVR? Microcontroller
AT32UC3A3256S_09 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:AVR32 32-Bit Microcontroller
AT32UC3A3256S_10 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:32-bit AVR??Microcontroller