• Core
– ARM® Cortex®-M3 revision 2.0 running at up to 48 MHz
– Thumb®-2 instruction
– 24-bit SysTick Counter
– Nested Vector Interrupt Controller • Pin-to-pin compatible with AT91SAM7S legacy products (48- and 64-pin versions) and
ATSAM3S (48-, 64- and 100-pin version) • Memories
– From 64 to 256 Kbytes embedded Flash, 128-bit wide access, memory accelerator, single plane
– From 8 to 24 Kbytes embedded SRAM
– 16 Kbytes ROM with embedded bootloader routines (UART) and IAP routines • System
– Embedded voltage regulator for single supply operation
– Power-on-Reset (POR), Brown-out Detector (BOD) and Watchdog for safe operation
– Quartz or ceramic resonator oscillators: 3 to 20 MHz main power with Failure Detection and optional low power 32.768 kHz for RTC or device clock
– High precision 8/12 MHz factory trimmed internal RC oscillator with 4 MHz default frequency for device startup. In-application trimming access for frequency adjustment
– Slow Clock Internal RC oscillator as permanent low-power mode device clock
– One PLL up to 130 MHz for device clock
– Up to 10 peripheral DMA (PDC) channels • Low Power Modes
– Sleep and Backup modes, down to 3 μA in Backup mode
– Ultra low power RTC • Peripherals
– Up to 2 USARTs with ISO7816, IrDA®, RS-485 and SPI mode
– Two 2-wire UARTs
– 2 Two Wire Interface (I2C compatible), 1 SPI
– Up to 6 Three-Channel 16-bit Timer/Counter with capture, waveform, compare and PWM mode. Quadrature Decoder Logic and 2-bit Gray Up/Down Counter for Stepper Motor
– 4-channel 16-bit PWM
– 32-bit Real-time Timer and RTC with calendar and alarm features
– Up to 16 channels, 384 KSPS 10-bit ADC
– One 500 KSPS 10-bit DAC • I/O
– Up to 79 I/O lines with external interrupt capability (edge or level sensitivity), debouncing, glitch filtering and on-die Series Resistor Termination
– Three 32-bit Parallel Input/Output Controllers • Packages
– 100-lead LQFP, 14 x 14 mm, pitch 0.5 mm / 100-ball LFBGA, 9 x 9 mm, pitch 0.8 mm
– 64-lead LQFP, 12 x 12 mm, pitch 0.5 mm / 64-pad QFN 9x9 mm, pitch 0.45 mm
– 48-lead LQFP, 9 x 9 mm, pitch 0.5 mm / 48-pad QFN 7x7 mm, pitch 0.45 mm
