參數(shù)資料
型號： ATSAM3U1EB-AU
廠商： Atmel
文件頁數(shù)： 7/60頁
文件大?。?/td> 0K
描述： IC MCU 64KB CORTEX-M3 144-LQFP
標(biāo)準(zhǔn)包裝： 60
系列： SAM3U
核心處理器： ARM? Cortex?-M3
芯體尺寸： 32-位
速度： 96MHz
連通性： EBI/EMI，I²C，MMC，SPI，SSC，UART/USART，USB
外圍設(shè)備： 欠壓檢測/復(fù)位，DMA，I²S，POR，PWM，WDT
輸入/輸出數(shù)： 96
程序存儲器容量： 64KB（64K x 8）
程序存儲器類型： 閃存
RAM 容量： 20K x 8
電壓 - 電源 (Vcc/Vdd)： 1.62 V ~ 1.95 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 8x10b，8x12b
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
15
6430FS–ATARM–10-Feb-12
SAM3U Series
5.
Power Considerations
5.1
Power Supplies
The SAM3U product has several types of power supply pins:
VDDCORE pins: Power the core, the embedded memories and the peripherals; voltage
ranges from 1.62V to 1.95V.
VDDIO pins: Power the Peripherals I/O lines; voltage ranges from 1.62V to 3.6V.
VDDIN pin: Powers the Voltage regulator
VDDOUT pin: It is the output of the voltage regulator.
VDDBU pin: Powers the Slow Clock oscillator and a part of the System Controller; voltage
ranges from 1.62V to 3.6V. VDDBU must be supplied before or at the same time than VDDIO
and VDDCORE.
VDDPLL pin: Powers the PLL A, UPLL and 3-20 MHz Oscillator; voltage ranges from 1.62V
to 1.95V.
VDDUTMI pin: Powers the UTMI+ interface; voltage ranges from 3.0V to 3.6V, 3.3V nominal.
VDDANA pin: Powers the ADC cells; voltage ranges from 2.0V to 3.6V.
Ground pins GND are common to VDDCORE and VDDIO pins power supplies.
Separated ground pins are provided for VDDBU, VDDPLL, VDDUTMI and VDDANA. These
ground pins are respectively GNDBU, GNDPLL, GNDUTMI and GNDANA.
5.2
Voltage Regulator
The SAM3U embeds a voltage regulator that is managed by the Supply Controller.
This internal regulator is intended to supply the internal core of SAM3U but can be used to sup-
ply other parts in the application. It features two different operating modes:
In Normal mode, the voltage regulator consumes less than 700 A static current and draws
150 mA of output current. Internal adaptive biasing adjusts the regulator quiescent current
depending on the required load current. In Wait Mode or when the output current is low,
quiescent current is only 7A.
In Shutdown mode, the voltage regulator consumes less than 1 A while its output is driven
internally to GND. The default output voltage is 1.80V and the start-up time to reach Normal
mode is inferior to 400 s.
For adequate input and output power supply decoupling/bypassing, refer to “Voltage Regulator”
in the “Electrical Characteristics” section of the product datasheet.
5.3
Typical Powering Schematics
The SAM3U supports a 1.8V-3.6V single supply mode. The internal regulator input connected to
the source and its output feed VDDCORE. Figure 5-1, Figure 5-2, Figure 5-3 show the power
schematics.
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ATSAM3U2CA-AU 功能描述:ARM微控制器 - MCU 128K Flash, 36K SRAM 32-bit ARM Cortex M3 RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:72 MHz 程序存儲器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT
ATSAM3U2CA-CU 功能描述:ARM微控制器 - MCU 128K Flash, 36K SRAM 32-bit ARM Cortex M3 RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:72 MHz 程序存儲器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT
ATSAM3U2EA-AU 功能描述:ARM微控制器 - MCU 128K Flash, 36K SRAM 32-bit ARM Cortex M3 RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:72 MHz 程序存儲器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT
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