AT91SAM7X256-AU

Product Summary

The AT91SAM7X256-AU is a highly integrated Flash microcontroller based on the 32-bit ARM RISC processor. It features 256 Kbyte high-speed Flash and 64 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 of the AT91SAM7X256-AU 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 AT91SAM7X256-AU system controller includes a reset controller capable of managing the power-on sequence of the microcontroller and the complete system.

Parametrics

AT91SAM7X256-AU absolute maximum ratings: (1)Operating Temperature (Industrial):-40℃ to + 85℃; (2)Storage Temperature:-60℃ to + 150℃; (3)Voltage on Input Pins with Respect to Ground: -0.3V to + 5.5V; (4)Maximum Operating Voltage(VDDCORE, and VDDPLL): 2.0V; (5)Maximum Operating Voltage(VDDIO, VDDIN and VDDFLASH): 4.0V; (6)Total DC Output Current on all I/O lines 100-lead LQFP package: 200 mA.

Features

AT91SAM7X256-AU features: (1)Incorporates the ARM7TDMI ARM Thumb Processor; (2)High-performance 32-bit RISC Architecture; (3)High-density 16-bit Instruction Set, Leader in MIPS/Watt; (4)EmbeddedICE In-circuit Emulation, Debug Communication Channel Support; (5)Organized in 1024 Pages of 256 Bytes (Single Plane); (6)Internal High-speed SRAM, Single-cycle Access at Maximum Speed: 64 Kbytes; (7)Memory Controller (MC): Embedded Flash Controller, Abort Status and Misalignment Detection; (8)Clock Generator (CKGR), Low-power RC Oscillator, 3 to 20 MHz On-chip Oscillator and one PLL; (9)Periodic Interval Timer (PIT), 20-bit Programmable Counter plus 12-bit Interval Counter; (10)Thirteen Peripheral DMA Controller (PDC) Channels; (11)One Four-channel 16-bit Power Width Modulation Controller (PWMC); (12)One 8-channel 10-bit Analog-to-Digital Converter, Four Channels Multiplexed with Digital I/Os; (13)5V-tolerant I/Os, Including Four High-current Drive I/O lines, Up to 16 mA Each; (14)Fully Static Operation: Up to 55 MHz at 1.65V and 85. C Worst Case Conditions; (15)Available in 100-lead LQFP Green and 100-ball TFBGA Green Packages.

Diagrams