AT91SAM7X256B-AU ARM7 SAM7X Microcontroller IC 16/32 Bit 55MHz 256KB FLASH

AT91SAM7X256B-AU ARM7® SAM7X Microcontroller IC 16/32-Bit 55MHz 256KB (256K x 8) FLASH

Description

Atmel's AT91SAM7X512/256/128 is a member of a series of highly integrated Flash microcon-trollers based on the 32-bit ARM RISC processor. It features 512/256/128 Kbyte high-speedFlash and 128/64/32 Kbyte SRAM, a large set of peripherals, including an 802.3 Ethernet MACand a CAN controller. A complete set of system functions minimizes the number of externalcomponents.The embedded Flash memory can be programmed in-system via the JTAG-ICE interface or viaa parallel interface on a production programmer prior to mounting. Built-in lock bits and a secu-rity bit protect the firmware from accidental overwrite and preserve its confidentiality.The AT91SAM7X512/256/128 system controller includes a reset controller capable of managingthe power-on sequence of the microcontroller and the complete system. Correct device opera-tion can be monitored by a built-in brownout detector and a watchdog running off an integratedRC oscillator.By combining the ARM7TDMI processor with on-chip Flash and SRAM, and a wide range ofperipheral functions, including USART, SPI, CAN Controller, Ethernet MAC, Timer Counter, RTTand Analog-to-Digital Converters on a monolithic chip, the AT91SAM7X512/256/128 is a power-ful device that provides a flexible, cost-effective solution to many embedded control applicationsrequiring communication over, for example, Ethernet, CAN wired and Zigbee™ wirelessnetworks.