AT91SAM9R64 32位ARM单片机

SRAM (Bytes)	64K
External Bus Interface	1
RTC/RTT	39814
10-bit ADC Channels	3
Peripheral DMA Channels	18
Max. Clock Speed (MHz)	240
I/O Pins	49
SDRAM Interface	1
NAND Flash ECC	39814
Enhanced USART	4
USART/DBGU	-/1
SPI	1
TWI	1
SSC	1
MCI	1
USB Device	HS
PWM Controller	3
16-bit Timers	3
Period Interval Timer	1
Power-On-Reset	2
On-chip RC Oscillator	1
Crystal Oscillator/PLL	39846
ARM Core	926EJ-S
Cache Memory (Bytes)	2x4K
MMU/MPU	1/-
I/O Voltage Domain (V)	3.3
In-System Programming	Y
Single Supply	N
Pb-Free Packages	LFBGA 144

AT91SAM9R64 产品描述

The AT91SAM9R is an ARM9-based microcontroller focused on applications that require sufficient on-chip memory for code execute-in-place. Its 64K byte internal SRAM attains single-cycle access at maximum clock speed. It comprises 4 blocks of 16K bytes configurable as TCM or general-purpose SRAM on the AHB Bus Matrix. It also has an External Bus Interface for access to a wide range of off-chip memories.

The AT91SAM9R's proprietary distributed DMA architecture enables it to transfer large amounts of data with minimal processor overhead. Its extensive set of external interfaces, including 480 Mbits/sec USB 2.0, give it the connectivity required for deeply embedded networked systems.

The AT91SAM9R is supported by an Evaluation Board and extensive third-party application development tools.

• 64KB 系统内可编程Flash存储器: AT91SAM9R64
• 64KB 系统内可编程Flash存储器: AT91SAM9RL64

AT91SAM9R64 特性

• Incorporates the ARM926EJ-STM ARM(R) Thumb(R) Processor
  – DSP Instruction Extensions
  – ARM Jazelle(R) Technology for Java(R) Acceleration
  – 4 Kbyte Data Cache, 4 Kbyte Instruction Cache, Write Buffer
  – 210 MIPS at 190 MHz
  – Memory Management Unit
  – EmbeddedICETM In-circuit Emulation, Debug Communication Channel Support
  – Mid-level implementation Embedded Trace MacrocellTM
• Multi-layer AHB Bus Matrix for Large Bandwidth Transfers
  – Six 32-bit-layer Matrix
  – Boot Mode Select Option, Remap Command
• One 32-KByte internal ROM, Single-cycle Access at Maximum Speed
• One 64-KByte internal SRAM, Single-cycle Access at Maximum Speed
  – 4 Blocks of 16 Kbytes Configurable in TCM or General-purpose SRAM on the AHB Bus Matrix
  – Single-cycle Accessible on AHB Bus at Bus Speed
  – Single-cycle Accessible on TCM Interface at Processor Speed
• 2-channel DMA
  – Memory to Memory Transfer
  – 16 Bytes FIFO
  – LInked List
• External Bus Interface (EBI)
  – EBI Supports SDRAM, Static Memory, ECC-enabled NAND Flash and CompactFlash(R)
• LCD Controller (for AT91SAM9RL64 only)
  – Supports Passive or Active Displays
  – Up to 24 Bits per Pixel in TFT Mode, Up to 16 bits per Pixel in STN Color Mode
  – Up to 16M Colors in TFT Mode, Resolution Up to 2048x2048, Virtual Screen Support
• High Speed (480 Mbit/s) USB 2.0 Device Controller
  – On-Chip High Speed Transceiver, UTMI+ Physical Interface
  – Integrated FIFOs and Dedicated DMA
  – 4 Kbyte Configurable Integrated DPRAM
• Fully-featured System Controller, including
  – Reset Controller, Shutdown Controller
  – Four 32-bit Battery Backup Registers for a Total of 16 Bytes
  – Clock Generator and Power Management Controller
  – Advanced Interrupt Controller and Debug Unit
  – Periodic Interval Timer, Watchdog Timer and Real-time Timer and Real-time Clock
• Reset Controller (RSTC)
  – Based on Two Power-on Reset Cells
  – Reset Source Identification and Reset Output Control
• Shutdown Controller (SHDC)
  – Programmable Shutdown Pin Control and Wake-up Circuitry
• Clock Generator (CKGR)
  – Selectable 32768 Hz Low-power Oscillator or Internal Low-power RC Oscillator on
  Battery Backup Power Supply, Providing a Permanent Slow Clock
  – 12 MHz On-chip Oscillator for Main System Clock and USB Clock– One PLL up to 240 MHz
  – One PLL 480 MHz Optimized for USB HS
• Power Management Controller (PMC)
  – Very Slow Clock Operating Mode, Software Programmable Power Optimization Capabilities
  – Two Programmable External Clock Signals
• Advanced Interrupt Controller (AIC)
  – Individually Maskable, Eight-level Priority, Vectored Interrupt Sources
  – One External Interrupt Sources and One Fast Interrupt Source, Spurious Interrupt Protected
• Debug Unit (DBGU)
  – 2-wire UART and Support for Debug Communication Channel, Programmable ICE Access Prevention
  – Mode for General Purpose 2-wire UART Serial Communication
• Periodic Interval Timer (PIT)
  – 20-bit Interval Timer plus 12-bit Interval Counter
• Watchdog Timer (WDT)
  – Key-protected, Programmable Only Once, Windowed 16-bit Counter Running at Slow Clock
• Real-time Timer (RTT)
  – 32-bit Free-running Backup Counter Running at Slow Clock with 16-bit Prescaler
• Real-time Clock (RTC)
  – Time, Date and Alarm 32-bit Parallel Load
  – Low Power Consumption
  – Programmable Periodic Interrupt
• One 6-channel 10-Bit Analog-to-Digital Converter
  – Touch Screen Interface Compatible with Industry Standard 4-wire Sensitive Touch Panels
• Four 32-bit Parallel Input/Output Controllers (PIOA, PIOB, PIOC and PIOD)
  – 118 Programmable I/O Lines Multiplexed with up to Two Peripheral I/Os for 217-ball BGA Package
  – Input Change Interrupt Capability on Each I/O Line
  – Individually Programmable Open-drain, Pull-up Resistor and Synchronous Output
• 22-channel Peripheral DMA Controller (PDC)
• One MultiMedia Card Interface (MCI)
  – SDCard/SDIO 1.0 and MultiMediaCardTM 3.1 Compliant
  – Automatic Protocol Control and Fast Automatic Data Transfers with PDC
• Two Synchronous Serial Controllers (SSC)
  – Independent Clock and Frame Sync Signals for Each Receiver and Transmitter
  – I^2S Analog Interface Support, Time Division Multiplex Support
  – High-speed Continuous Data Stream Capabilities with 32-bit Data Transfer
• One AC97 Controller (AC97C)
  – 6-channel Single AC97 Analog Front End Interface, Slot Assigner
• Four Universal Synchronous/Asynchronous Receiver Transmitters (USART)
  – Individual Baud Rate Generator, IrDA(R) Infrared Modulation/Demodulation, Manchester Encoding/Decoding
  – Support for ISO7816 T0/T1 Smart Card, Hardware Handshaking, RS485 Support
• One Master/Slave Serial Peripheral Interface (SPI)
  – 8- to 16-bit Programmable Data Length, Four External Peripheral Chip Selects
  – High-speed Synchronous Communications
• One Three-channel 16-bit Timer/Counter (TC)
  – Three External Clock Inputs, Two Multi-purpose I/O Pins per Channel
  – Double PWM Generation, Capture/Waveform Mode, Up/Down Capability
• One Four-channel 16-bit PWM Controller (PWMC)
• Two Two-wire Interfaces (TWI)
  – Compatible with Standard Two-wire Serial Memories
  – One, Two or Three Bytes for Slave Address– Sequential Read/Write Operations
  – Master, Multi-master and Slave Mode Operation
  – Bit Rate: Up to 400 Kbits
  – General Call Supported in Slave Mode
  – Connection to Peripheral DMA Controller (PDC) Channel Capabilities Optimizes Data Transfers in Master Mode Only (TWI0 only)
• SAM-BA(R) Boot Assistant
  – Default Boot Program
  – Interface with SAM-BA Graphic User Interface
• IEEE(R) 1149.1 JTAG Boundary Scan on All Digital Pins
• Required Power Supplies:
  – 1.08 to 1.32V for VDDCORE, VDDUTMIC, VDDPLLB and VDDBU
  – 3.0V to 3.6V for VDDPLLA, VDDANA, VDDUTMII and VDDIOP
  – Programmable 1.65V to 1.95V or 3.0V to 3.6V for VDDIOM
• Available in a 144-ball BGA (AT91SAM9R64) and a 217-ball LFBGA (AT91SAM9RL64) Package

AT91SAM9R64 订购型号

Ordering Code	Package	Package Type	Operating Temperature Range
AT91SAM9R64-CU	LFBGA144	Green	Industrial (-40° C to 85° C)
AT91SAM9RL64-CU	LFBGA217	Green	Industrial (-40° C to 85° C)

AT91SAM9R64 应用技术支持与电子电路设计开发资源下载

1. AT91SAM9R64 数据手册DataSheet 下载. PDF（完整版）
2. AT91SAM9R64 英文数据手册DataSheet 下载. PDF（简洁版）
3. ARM7TDMI 技术白皮书
4. AT91SAM 系列产品选型指南(Brochure, 2 pages, revision E, updated 2/09)
   Product selection guide to Atmel's AT91SAM microcontrollers that give immediate access to market-leading ARM processors.
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.