AT91R40008-66AU

The AT91R40008 microcontroller is a member of the AT91 16/32-bit microcontroller family, which is based on the ARM7TDMI processor core. This processor has a high-performance, 32-bit RISC architecture with a high-density, 16-bit instruction set and very low power consumption. Furthermore, it features 256K bytes of on-chip SRAM and a large number of internally banked registers, resulting in very fast exception handling, and making the device ideal for real-time control applications. The AT91R40008 microcontroller features a direct connection to off-chip memory, including Flash, through the fully programmable External Bus Interface (EBI). An 8- level priority vectored interrupt controller, in conjunction with the Peripheral Data Controller, significantly improves the real-time performance of the device. The device is manufactured using ’s high-density CMOS technology. By combining the ARM7TDMI processor core with a large, on-chip, high-speed SRAM and a wide range of peripheral functions on a monolithic chip, the AT91R40008 is a powerful microcontroller that offers a flexible and high-performance solution to many compute intensive embedded control applications.

• Incorporates the ARM7TDMI® ARM® Thumb® Processor Core
  • High-performance 32-bit RISC Architecture
  • High-density 16-bit Instruction Set
  • Leader in MIPS/Watt
  • Little-endian
  • Embedded ICE™ (In-circuit Emulation)
• 8-, 16- and 32-bit Read and Write Support
• 256K Bytes of On-chip SRAM
  • 32-bit Data Bus
  • Single-clock Cycle Access
• Fully Programmable External Bus Interface (EBI)
  • Maximum External Address Space of 64M Bytes
  • Up to Eight Chip Selects
  • Software Programmable 8/16-bit External Data Bus
• Eight-level Priority, Individually Mask able, Vectored Interrupt Controller
  • Four External Interrupts, including a High-priority, Low-latency Interrupt Request
• 32 Programmable I/O Lines
• Three-channel 16-bit Timer/Counter
  • Three External Clock Inputs
  • Two Multi-purpose I/O Pins per Channel
• Two USARTs