参数资料
| 型号： | AT91SAM9G20B-CFU |
| 厂商： | Atmel |
| 文件页数： | 5/42页 |
| 文件大小： | 0K |
| 描述： | IC MCU ARM9 247-LFBGA |
| 产品培训模块： | MCU Product Line Introduction |
| 标准包装： | 240 |
| 系列： | SAM9G |
| 核心处理器： | ARM9 |
| 芯体尺寸： | 16/32-位 |
| 速度： | 400MHz |
| 连通性： | EBI/EMI，以太网，I²C，IrDA，ISI，MMC，SPI，SSC，UART/USART，USB |
| 外围设备： | DMA，POR，PWM，WDT |
| 输入/输出数： | 96 |
| 程序存储器容量： | 64KB（64K x 8） |
| 程序存储器类型： | ROM |
| RAM 容量： | 96K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 0.9 V ~ 1.1 V |
| 数据转换器： | A/D 4x10b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 247-TFBGA |
| 包装： | 托盘 |
第1页第2页第3页第4页当前第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页
13
6384DS–ATARM–13-Jan-10
AT91SAM9G20 Summary
5.
Power Considerations
5.1
Power Supplies
The AT91SAM9G20 has several types of power supply pins:
VDDCORE pins: Power the core, including the processor, the embedded memories and the
peripherals; voltage ranges from 0.9V to 1.1V, 1.0V nominal.
VDDIOM pins: Power the External Bus Interface I/O lines; voltage ranges between 1.65V and
1.95V (1.8V typical) or between 3.0V and 3.6V (3.3V nominal). The voltage range is
selectable by software.
VDDIOP pins: Power the Peripherals I/O lines; voltage ranges from 1.65V to 3.6V.
VDDBU pin: Powers the Slow Clock oscillator, the internal RC oscillator and a part of the
System Controller; voltage ranges from 0.9V to 1.1V, 1.0V nominal.
VDDPLL pin: Powers the PLL cells; voltage ranges from 0.9V to 1.1V.
VDDOSC pin: Powers the Main Oscillator cells; voltage ranges from 1.65V to 3.6V
VDDANA pin: Powers the Analog to Digital Converter; voltage ranges from 3.0V to 3.6V, 3.3V
nominal.
VDDUSB pin: Powers USB transceiver; voltage ranges from 3.0V to 3.6V.
Ground pins GND are common to VDDCORE, VDDIOM, VDDOSC and VDDIOP pins power
supplies. Separated ground pins are provided for VDDBU, VDDPLL, VDDUSB and VDDANA.
These ground pins are respectively GNDBU, GNDPLL, GNDUSB and GNDANA.
5.2
Programmable I/O Lines
The power supplies pins VDDIOM accept two voltage ranges. This allows the device to reach its
maximum speed either out of 1.8V or 3.3V external memories.
The maximum speed is 133 MHz on the pin SDCK (SDRAM Clock) loaded with 10 pF. The other
signals (control, address and data signals) do not go over 66 MHz, loaded with 30 pF for power
supply at 1.8V and 50 pF for power supply at 3.3V.
The EBI I/Os accept two slew rate modes, Fast and Slow. This allows to adapt the rising and fall-
ing time on SDRAM clock, control and data to the bus load.
The voltage ranges and the slew rates are determined by programming VDDIOMSEL and IOSR
bits in the Chip Configuration registers located in the Matrix User Interface.
At reset, the selected voltage defaults to 3.3V nominal and power supply pins can accept either
1.8V or 3.3V. The user must make sure to program the EBI voltage range before getting the
device out of its Slow Clock Mode.
At reset, the selected slew rates defaults are Fast.
相关PDF资料 |
PDF描述 |
|---|---|
| AT91SAM9N12-CU | IC MCU ARM9 217-LFBGA |
| AT91SAM9R64-CU-999 | IC MCU ARM9 32KB ROM 144LFBGA |
| AT91SAM9XE512-QU | MCU ARM9 512K FLASH 208-PQFP |
| AT97SC3204-X1A50-1 | CRYPTO TPM LPC 3.0-3.6V 28TSSOP |
| ATA6620N-TAQY | TXRX LIN BUS W/VREG SO-8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT91SAM9G20B-CU | 功能描述:ARM微控制器 - MCU 2x16K SRAM Ethernet USB Host Bus Intrfc RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT |
| AT91SAM9G20B-CU-999 | 功能描述:ARM微控制器 - MCU 2x16K SRAM Ethernet USB Host Bus Intrfc RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT |
| AT91SAM9G20-CU | 功能描述:ARM微控制器 - MCU 32-bit RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT |
| AT91SAM9G20-EK | 功能描述:开发板和工具包 - ARM 32-bit MCU Eval Kit RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V |
| AT91SAM9G25-BFU | 制造商:Atmel Corporation 功能描述:VFBGA, GREEN, IND TEMP, MRLA - Trays 制造商:Atmel Corporation 功能描述:IC MCU ARM9 64KB ROM 247VFBGA |
发布紧急采购，3分钟左右您将得到回复。