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| 型号： | ATSAM3X4EA-CU |
| 厂商： | Atmel |
| 文件页数： | 22/71页 |
| 文件大小： | 0K |
| 描述： | IC MCU 2X128KB CORTEX-M3 144-BGA |
| 标准包装： | 160 |
| 系列： | SAM3X |
| 核心处理器： | ARM? Cortex?-M3 |
| 芯体尺寸： | 32-位 |
| 速度： | 84MHz |
| 连通性： | CAN，EBI/EMI，以太网，I²C，IrDA，LIN，MMC，SPI，SSC，UART/USART，USB |
| 外围设备： | 欠压检测/复位，DMA，I²S，POR，PWM，WDT |
| 输入/输出数： | 103 |
| 程序存储器容量： | 256KB（256K x 8） |
| 程序存储器类型： | 闪存 |
| RAM 容量： | 68K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 1.62 V ~ 1.95 V |
| 数据转换器： | A/D 16x12b，D/A 2x12b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 144-LFBGA |
| 包装： | 托盘 |
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31
11057BS–ATARM–13-Jul-12
SAM3X/A
31
11057BS–ATARM–13-Jul-12
SAM3X/A
6.4
NRST Pin
The NRST pin is bidirectional. It is handled by the on-chip reset controller and can be driven low
to provide a reset signal to the external components, or asserted low externally to reset the
microcontroller. It will reset the Core and the peripherals except the Backup region (RTC, RTT
and Supply Controller). There is no constraint on the length of the reset pulse, and the reset con-
troller can guarantee a minimum pulse length.
The NRST pin integrates a permanent pull-up resistor to VDDIO of about 100 k
Ω.
6.5
NRSTB Pin
The NRSTB pin is input only and enables asynchronous reset of the SAM3X/A series when
asserted low. The NRSTB pin integrates a permanent pull-up resistor of about 15 k
Ω. This allows
connection of a simple push button on the NRSTB pin as a system-user reset. In all modes, this
pin will reset the chip including the Backup region (RTC, RTT and Supply Controller). It reacts as
the Power-on reset. It can be used as an external system reset source. In harsh environments, it
is recommended to add an external capacitor (10 nF) between NRSTB and VDDBU. (For filter-
ing values, refer to “I/O characteristics” in the “Electrical Characteristics” section of the product
datasheet)
It embeds an anti-glitch filter.
6.6
ERASE Pin
The ERASE pin is used to reinitialize the Flash content (and some of its NVM bits) to an erased
state (all bits read as logic level 1). It integrates a pull-down resistor of about 100 k
Ω to GND, so
that it can be left unconnected for normal operations.
This pin is debounced by SCLK to improve the glitch tolerance. When the ERASE pin is tied high
during less than 100 ms, it is not taken into account. The pin must be tied high during more than
220 ms to perform a Flash erase operation.
The ERASE pin is a system I/O pin and can be used as a standard I/O. At startup, the ERASE
pin is not configured as a PIO pin. If the ERASE pin is used as a standard I/O, the startup level
of this pin must be low to prevent unwanted erasing. Please refer to Section 11.2 “Peripheral
Signal Multiplexing on I/O Lines”. Also, if the ERASE pin is used as a standard I/O output,
asserting the pin to low does not erase the Flash.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ATSAM3X8CA-AU | 功能描述:ARM微控制器 - MCU QFP100,GREEN, IND TEMP, MRLA 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 |
| ATSAM3X8CA-CU | 功能描述:ARM微控制器 - MCU BGA100,GREEN, IND TEMP, MRLA 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 |
| ATSAM3X8EA-AU | 功能描述:ARM微控制器 - MCU LQFP144,GREEN, IND TEMP, MRLA 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 |
| ATSAM3X8EA-AU | 制造商:Atmel Corporation 功能描述:QFP144GREEN IND TEMP MRLA |
| ATSAM3X8EA-CU | 功能描述:ARM微控制器 - MCU BGA144,GREEN, IND TEMP, MRLA 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 |
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