參數(shù)資料
型號： AT91SAM9N12-CU
廠商： Atmel
文件頁數(shù)： 7/27頁
文件大?。?/td> 0K
描述： IC MCU ARM9 217-LFBGA
標(biāo)準(zhǔn)包裝： 126
系列： SAM9N
核心處理器： ARM9
芯體尺寸： 16/32-位
速度： 400MHz
連通性： EBI/EMI，I²C，MMC，SPI，SSC，UART/USART，USB
外圍設(shè)備： DMA，LCD，POR，PWM，WDT
輸入/輸出數(shù)： 105
程序存儲器容量： 128KB（128K x 8）
程序存儲器類型： ROM
RAM 容量： 32K x 8
電壓 - 電源 (Vcc/Vdd)： 0.9 V ~ 1.1 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 12x10b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： *
包裝： *
15
11096AS–ATARM–4-Oct-11
SAM9N12
5.
Power Considerations
5.1
Power Supplies
The SAM9N12 has several types of power supply pins:
5.2
Programmable I/O Lines Power Supplies and Current Drive
5.2.1
External Bus interface
32 bits Wide Interface, Supporting:
16-bit DDR2/LPDDR, 32-bit SDRAM/LPSDR
Static Memories
NAND Flash with up to 24-bit ECC
Refer to EBI section, chapter Implementation examples for hardware connection details.
The EBI I/Os accept two drive levels, HIGH and LOW. This allows to avoid overshoots and give
the best performances according to the bus load and external memories.
The voltage ranges and the slew rates are determined by programming EBI_DRIVE field in the
Chip Configuration registers located in the Matrix User Interface.
At reset the selected current drive is HIGH.
A switch NFD0_ON_D16 allows the user to select NAND Flash path on D0-D15 or D16-D31,
depending on memory power supplies. This switch is located in the register EBICSA in the Bus
Matrix user interface.
In the following example, the NAND Flash and the external RAM (DDR2 or LPDDR or 16-bit
LPSDR) are in the same power supply range, (NFD0_ON_D16 = 0).
Table 5-1.
SAM9N12 Power Supplies
Name
Voltage Range,
nominal
Associated
Ground
Powers
VDDCORE
0.9-1.1V, 1.0V
GNDCORE
the core, including the processor, the embedded
memories and the peripherals, the internal 12 MHz RC
VDDIOM
1.65-1.95V, 1.8V
3.0-3.6V, 3.3V
GNDIOM
the External Memory Interface I/O lines
VDDNF
1.65-1.95V, 1.8V
3.0-3.6V, 3.3V
GNDIOM
the NAND Flash I/O and control, D16-D32 and
multiplexed SMC lines
VDDIOP0
1.65-3.6V
GNDIOP
a part of Peripherals I/O lines
VDDIOP1
1.65-3.6V
GNDIOP
a part of Peripherals I/O lines
VDDBU
1.65-3.6V
GNDBU
the Slow Clock oscillator, the internal 32-kbyte RC and a
part of the System Controller
VDDUSB
3.0-3.6V, 3.3V
GNDUSB
the USB interface
VDDPLL
0.9-1.1V, 1.0V
GNDPLL
the PLL cells
VDDOSC
1.65-3.6V
GNDPLL
the Main Oscillator cells
VDDANA
3.0-3.6V, 3.3V
GNDANA
the Analog to Digital Converter
VDDFUSE
3.0-3.6V, 3.3V
GNDFUSE
Fuse box for programming
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AT91SAM9R64_09 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:AT91 ARM Thumb Microcontrollers
AT91SAM9R64-CU 功能描述:ARM微控制器 - MCU ARM Thumb MCU 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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