参数资料
型号: AT91SAM7S256C-MU
厂商: Atmel
文件页数: 84/165页
文件大小: 0K
描述: IC ARM7 MCU 32BIT 256K 64QFN
标准包装: 260
系列: SAM7S
核心处理器: ARM7
芯体尺寸: 16/32-位
速度: 55MHz
连通性: I²C,SPI,SSC,UART/USART,USB
外围设备: 欠压检测/复位,DMA,POR,PWM,WDT
输入/输出数: 32
程序存储器容量: 256KB(256K x 8)
程序存储器类型: 闪存
RAM 容量: 64K x 8
电压 - 电源 (Vcc/Vdd): 1.65 V ~ 1.95 V
数据转换器: A/D 8x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 64-VFQFN 裸露焊盘
包装: 托盘
25
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
8.8.6
Calibration Bits
Eight NVM bits are used to calibrate the brownout detector and the voltage regulator. These bits are factory configured
and cannot be changed by the user. The ERASE pin has no effect on the calibration bits.
8.9
Fast Flash Programming Interface
The Fast Flash Programming Interface allows programming the device through either a serial JTAG interface or through
a multiplexed fully-handshaked parallel port. It allows gang-programming with market-standard industrial programmers.
The FFPI supports read, page program, page erase, full erase, lock, unlock and protect commands.
The Fast Flash Programming Interface is enabled and the Fast Programming Mode is entered when the TST pin and the
PA0 and PA1 pins are all tied high and PA2 is tied low.
8.10
SAM-BA Boot Assistant
The SAM-BA
Boot Recovery restores the SAM-BA Boot in the first two sectors of the on-chip Flash memory. The
SAM-BA Boot recovery is performed when the TST pin and the PA0, PA1 and PA2 pins are all tied high for 10 sec-
onds. Then, a power cycle of the board is mandatory.
The SAM-BA Boot Assistant is a default Boot Program that provides an easy way to program in situ the on-chip Flash
memory.
The SAM-BA Boot Assistant supports serial communication through the DBGU or through the USB Device Port. (The
SAM7S32/16 have no USB Device Port.)
Communication through the DBGU supports a wide range of crystals from 3 to 20 MHz via software auto-
detection.
Communication through the USB Device Port is limited to an 18.432 MHz crystal. (
The SAM-BA Boot provides an interface with SAM-BA Graphic User Interface (GUI).
9.
System Controller
The System Controller manages all vital blocks of the microcontroller: interrupts, clocks, power, time, debug and reset.
The System Controller peripherals are all mapped to the highest 4 Kbytes of address space, between addresses 0xFFFF
F000 and 0xFFFF FFFF.
Figure 9-1 on page 26 and Figure 9-2 on page 27 show the product specific System Controller Block Diagrams.
Figure 8-1 on page 20 shows the mapping of the of the User Interface of the System Controller peripherals. Note that the
memory controller configuration user interface is also mapped within this address space.
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AT91SAM7S256C-MU-999 功能描述:ARM微控制器 - MCU 256K Flash SRAM 64K ARM based MCU 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
AT91SAM7S256D-AU 功能描述:ARM微控制器 - MCU 256K Flash SRAM 64K ARM based MCU 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
AT91SAM7S256D-AU-999 制造商:Atmel Corporation 功能描述:AT91SAM7S256D-AU-999 制造商:Atmel Corporation 功能描述:LQFP, GREEN, IND TEMP, T&R, MRL D - Tape and Reel 制造商:Atmel Corporation 功能描述:IC MCU ARM7 256KB FLASH 64LQFP 制造商:Atmel Corporation 功能描述:LQFP Green IND TEMP T&R, MRL D 制造商:Atmel 功能描述:AT91SAM7S256D-AU-999
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AT91SAM7S256D-MU-999 制造商:Atmel Corporation 功能描述:QFN,GREEN,IND TEMP,T&R, MRL D 制造商:Atmel Corporation 功能描述:QFN,GREEN,IND TEMP,T&R, MRL D - Tape and Reel 制造商:Atmel 功能描述:ARM 制造商:Atmel Corporation 功能描述:IC MCU ARM7 256KB FLASH 64QFN 制造商:Atmel Corporation 功能描述:QFN GREEN IND TEMP T&R, MRL D