參數(shù)資料
型號(hào)： ATSAM3S-EK2
廠商： Atmel
文件頁(yè)數(shù)： 6/57頁(yè)
文件大小： 0K
描述： EVAL KIT FOR SAM3S8 & SAM3SD8
設(shè)計(jì)資源： SAM3S-EK2 Design & Mfg Files
SAM3S-EK2 Design & Mfg Files Information
SAM3S-EK2 Demo Release Notes
標(biāo)準(zhǔn)包裝： 1
類型： MCU
適用于相關(guān)產(chǎn)品： ATSAM3S 系列
所含物品： 板
14
11090BS–ATARM–22-Oct-13
SAM3S8/SD8 Summary
5.
Power Considerations
5.1
Power Supplies
The SAM3S8/SD8 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 (Input/Output Buffers), USB transceiver, Backup
part, 32 kHz crystal oscillator and oscillator pads. Voltage ranges from 1.62V to 3.6V.
VDDIN pin: Voltage Regulator Input, ADC, DAC and Analog Comparator Power Supply.
Voltage ranges from 1.8V to 3.6V.
VDDPLL pin: Powers the PLLA, PLLB, the Fast RC and the 3 to 20 MHz oscillator. Voltage
ranges from 1.62V to 1.95V.
5.2
Voltage Regulator
The SAM3S8/SD8 embeds a voltage regulator that is managed by the Supply Controller.
This internal regulator is designed to supply the internal core of SAM3S8/SD8. It features two
operating modes:
In Normal mode, the voltage regulator consumes less than 700 A static current and draws
80 mA of output current. Internal adaptive biasing adjusts the regulator quiescent current
depending on the required load current. In Wait Mode quiescent current is only 7 A.
In Backup mode, the voltage regulator consumes less than 1 A while its output (VDDOUT)
is driven internally to GND. The default output voltage is 1.80V and the start-up time to reach
Normal mode is less than 100 s.
For adequate input and output power supply decoupling/bypassing, refer to the “Voltage Regula-
tor” section in the “Electrical Characteristics” section of the datasheet.
5.3
Typical Powering Schematics
The SAM3S8/SD8 supports a 1.62V-3.6V single supply mode. The internal regulator input con-
nected to the source and its output feeds VDDCORE. Figure 5-1 below shows the power
schematics.
As VDDIN powers the voltage regulator, the ADC, DAC and the analog comparator, when the
user does not want to use the embedded voltage regulator, it can be disabled by software via
the SUPC (note that this is different from Backup mode).
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ATSAM3U 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:AT91 ARM Thumb-based Microcontrollers
ATSAM3U_10 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:AT91ARM Cortex M3-based Microcontrollers
ATSAM3U1CA-AU 功能描述:ARM微控制器 - MCU 64K Flash, 20K 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(shí)鐘頻率:72 MHz 程序存儲(chǔ)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
ATSAM3U1CA-CU 功能描述:ARM微控制器 - MCU 64K Flash, 20K 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(shí)鐘頻率:72 MHz 程序存儲(chǔ)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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