Hot-selling and scarce AT91SAM7X256B-AU ARM Thumb-based Microcontrollers IC LQFP spot stock

Product Descriptions

AT91SAM7X512/256/128 is a member of a series of highly integrated Flash microcontrollers based on the 32-bit ARM RISC processor. It features 512/256/128 Kbyte high-speed Flash and 128/64/32 Kbyte SRAM, a large set of peripherals, including an 802.3 Ethernet MAC and a CAN controller. A complete set of system functions minimizes the number of external components.

The embedded Flash memory can be programmed in-system via the JTAG-ICE interface or via a parallel interface on a production programmer prior to mounting. Built-in lock bits and a security bit protect the firmware from accidental overwrite and preserve its confidentiality.

The AT91SAM7X512/256/128 system controller includes a reset controller capable of managing the power-on sequence of the microcontroller and the complete system. Correct device operation can be monitored by a built-in brownout detector and a watchdog running off an integrated RC oscillator.

Product Features

• Incorporates the ARM7TDMI® ARM® Thumb® Processor

– High-performance 32-bit RISC Architecture

– High-density 16-bit Instruction Set

• Leader in MIPS/Watt

– EmbeddedICE™ In-circuit Emulation, Debug Communication Channel Support

• Internal High-speed Flash

– 512 Kbytes (AT91SAM7X512) Organized in Two Banks of 1024 Pages of 256 Bytes (Dual Plane)

– 256 Kbytes (AT91SAM7X256) Organized in 1024 Pages of 256 Bytes (Single Plane)

– 128 Kbytes (AT91SAM7X128) Organized in 512 Pages of 256 Bytes (Single Plane)

• Single Cycle Access at Up to 30 MHz in Worst Case Conditions

• Prefetch Buffer Optimizing Thumb Instruction Execution at Maximum Speed

• Page Programming Time: 6 ms, Including Page Auto-erase, Full Erase Time: 15 ms

• 10,000 Write Cycles, 10-year Data Retention Capability, Sector Lock Capabilities, Flash Security Bit

• Fast Flash Programming Interface for High Volume Production

Product Specification

Product Photos

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