The SAM3SD8 series is a member of a family of Flash microcontrollers based on the high performance 32-bit ARM Cortex -M3 RISC processor. It operates at a maximum speed of 64 MHz and features 512 Kbytes of Flash (dual plane on SAM3SD8) and 64 Kbytes of SRAM. The peripheral set includes a Full Speed USB Device port with embedded transceiver, a High Speed MCI for SDIO/SD/MMC, an External Bus Interface featuring a Static Memory Controller providing connection to SRAM, PSRAM, NOR Flash, LCD Module and NAND Flash, 2(3) USARTs (3 on SAM3SD8C), 2 UARTs, 2 TWIs, 3 SPIs, an I2S, as well as a PWM timer, two 3-channel general-purpose 16-bit timers (with stepper motor and quadrature decoder logic support), an RTC, a 12-bit ADC, a 12-bit DAC and an analog comparator. The SAM3SD8 series is ready for capacitive touch thanks to the QTouch library, offering an easy way to implement buttons, wheels and sliders. The SAM3SD8 device is a medium range general purpose microcontroller with the best ratio in terms of reduced power consumption, processing power and peripheral set. This enables the SAM3S8/SD8 to sustain a wide range of applications including consumer, industrial control, and PC peripherals It operates from 1.62V to 3.6V and is available in 64- and 100-pin QFP, 64-pin QFN, and 100-pin BGA packages. The SAM3SD8 series is the ideal migration path from the SAM7S series for applications that require more performance. The SAM3SD8 series is pin-to-pin compatible with the SAM7S series.
ARM Cortex-M3 revision 2.0 running at up to 64 MHz
Memory Protection Unit (MPU)
Thumb®-2 instruction set
Pin-to-pin compatible with AT91SAM7S legacy products (64-pin versions), SAM3S4/2/1 products