'''AT91SAM''' ('''AT91SAM Smart ARM-based Microcontrollers''') are a family of [[Atmel]] [[microcontroller]]schips based on the [[32-bit]] [[reduced instruction set computer|RISC]] microprocessors from [[ARM architecture|ARM]]<ref>[http://www.atmel.com/products/at91/ Atmel product website]</ref>. They Some are targetted as applications processors, with external memory busses used to access RAM (SDRAM or DDR2) and flash, and large sets of integrated peripherals. When targetted as [[microcontroller]]s they include embedded [[flash memory|Flash]] and [[static random access memory|SRAM]] [[computer data storage|memories]] together with a number of [[peripheral]]s and standard communications and [[computer networking|networking]] [[bus (computing)|interface]]s. This qualifies them as [[system-on-a-chip]] devices.
The AT91SAM comes in [[ARM7TDMI|ARM7]], [[ARM9E|ARM9]] and [[ARM Cortex|Cortex M3]] versions.
