AT91SAM9261 32位ARM单片机

Status Production
SRAM (Bytes) 160K
LCD Controller 1
USB Host 2xFS
External Bus Interface 1
RTC/RTT -/1
Peripheral DMA Channels 19
Max. Clock Speed (MHz) 240
I/O Pins 96
SDRAM Interface 1
NAND Flash ECC 1/-
Enhanced USART 3
USART/DBGU -/1
SPI 2
TWI 1
SSC 3
MCI 1
USB Device FS
16-bit Timers 3
Period Interval Timer 1
Watchdog Timer 1
Power-On-Reset 2
Crystal Oscillator/PLL 39846
ARM Core 926EJ-S
Cache Memory (Bytes) 2x16K
MMU/MPU MMU
I/O Voltage Domain (V) 1.8/3.3
In-System Programming Y
Single Supply N
Pb-Free Packages LFBGA 217

AT91SAM9261 是以ARM926EJ-S ARM Thumb 处理器为核心的完全的片上系统,它扩展了DSP 指令集和Jazelle Java 加速器。主时钟频率190MHz 时性能高达210 MIPS

AT91SAM9261 是一个为带LCD 显示应用而优化了的主机处理器。它的集成LCD 控制器支持BW 而且达到16M 色彩,主动和被动LCD 显示。160K 字节的片上SRAM 可配置为帧缓冲,能将LCD 刷新对整体处理器性能上的影响减到最小。外部总线接口包括支持同步DRAM(SDRAM)和支持静态存储器的控制器,并有特殊接口电路以支持CompactFLASH、NAND Flash。

AT91SAM9261 集成了一个支持影射的基于ROM 的Boot loader,例如,从外部DataFlash影射到外部SDRAM。由软件控制的功率管理控制器(PMC)通过有选择的启用和关闭处理器、各种外设和工作频率的调解能使系统功率损耗保持最小。

AT91SAM9261 还集成了宽范围的调试特性。包括JTAG-ICE,一个专用的UART 调试通道(DBGU)和嵌入式实时追踪。这使所有应用的调试和开发,特别是严格要求实时性的应用得以实现。

AT91SAM9260 特性
AT91SAM9261 订购型号
Ordering Code Package Package Type Operating Temperature Range
AT91SAM9261-CJ BGA217 RoHS-compliant Industrial (-40° C to 85° C)
AT91SAM9261B-CU BGA217 Green Industrial (-40° C to 85° C)
AT91SAM9261 应用技术支持与电子电路设计开发资源下载
  1. AT91SAM9261 数据手册DataSheet 下载. PDF(完整版)
  2. AT91SAM9261 数据手册DataSheet 下载. PDF(简洁版)
  3. ARM926EJ-S 处理器技术白皮书. pdf
  4. AT91SAM 系列产品选型指南. pdf
  5. Atmel's ARM-based Microcontroller Excels in Real-Time (White Paper, 6 pages, revision A, updated 3/01)
    Applications such as mobile communicators, PDAs, solid-state music players and internet appliances demand the best possible real-time performance. Atmel's AT91 series of ARM-based microcontrollers incorporates a number of advanced features that enhance the real-time performance of the ARM7TDMI core, making it ideal for applications of this nature.