The AT91X40 Series is a subset of the Atmel AT91 16/32-bit microcontroller family,which is based on the ARM7TDMI processor core. These processors have a high-performance 32-bit RISC architecture with a high-density 16-bit instruction set and very low power consumption. In addition, a large number of internally banked registers result in very fast exception handling, making the device ideal for real-time control applications.

Features

• Incorporates the ARM7TDMI® ARM® Thumb® Processor Core
  • High-performance 32-bit RISC Architecture
  • High-density 16-bit Instruction Set
  • Leader in MIPS/Watt
  • EmbeddedICE™
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• On-chip SRAM/ROM versions
  • AT91M40800 - 8K bytes Primary SRAM Bank
  • AT91R40807 - 8K bytes Primary SRAM Bank + 128K bytes Secondary SRAM Bank
  • AT91M40807 - 8K bytes Primary SRAM Bank + 129K bytes ROM
  • AT91R40008 - 256K bytes Primary SRAM Bank
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• Fully-programmable External Bus Interface (EBI)
  • Maximum External Address Space of 64M Bytes
  • Up to 8 Chip Selects
  • Software Programmable 8/16-bit External Databus
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• 8-level Priority, Individually Maskable, Vectored Interrupt Controller
  • 4 External Interrupts, Including a High-priority Low-latency Interrupt Request
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• 32 Programmable I/O Lines
• 3-channel 16-bit Timer/Counter
  • 3 External Clock Inputs
  • 2 Multi-purpose I/O Pins per Channel
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• 2 USARTs
  • 2 Dedicated Peripheral Data Controller (PDC) Channels per USART
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• Programmable Watchdog Timer
• Advanced Power-saving Features
  • CPU and Peripheral Can Be Deactivated Individually
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• Fully Static Operation:
  • 0 Hz to 40 MHz Internal Frequency Range at 3.0V, 85°C
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• 1.8V to 3.6V Operating Range
• -40° C to +85°C Temperature Range
• Available in a 100-lead LQFP Package (Green)
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