SAM3S8 / SAM3SD8 [DATASHEET]
Atmel-11090B-ATARM-SAM3S8-SAM3SD8-Datasheet_18-Dec-14
2
Features
Core
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
Memories
512 Kbytes Single Plane (SAM3S8) embedded Flash, 128-bit wide access, memory accelerator
512 Kbytes Dual Plane (SAM3SD8) embedded Flash, 128-bit wide access, memory accelerator
64 Kbytes embedded SRAM
16 Kbytes ROM with embedded boot loader routines (UART, USB) and IAP routines
8-bit Static Memory Controller (SMC): SRAM, PSRAM, NOR and NAND Flash support
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
RTC with Gregorian and Persian Calendar mode, waveform generation in low-power modes
RTC clock calibration circuitry for 32.768 kHz crystal frequency compensation
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
Two PLLs up to 130 MHz for device clock and for USB
Temperature Sensor
Up to 24 peripheral DMA (PDC) channels
Low Power Modes
Sleep and Backup modes, down to < 2 µA in Backup mode
Ultra low-power RTC
Peripherals
USB 2.0 Device: 12 Mbps, 2668 byte FIFO, up to 8 bidirectional Endpoints. On-Chip Transceiver
Up to 3 USARTs with ISO7816, IrDA®, RS-485, SPI, Manchester and Modem Mode
Two 2-wire UARTs
Up to 2 Two Wire Interface (I2C compatible), 1 SPI, 1 Serial Synchronous Controller (I2S), 1 High Speed
Multimedia Card Interface (SDIO/SD Card/MMC)
Two 3-channel 16-bit Timer Counters 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 with Complementary Output, Fault Input, 12-bit Dead Time Generator Counter for Motor
Control
32-bit Real-time Timer and RTC with calendar and alarm features
Up to 15-channel, 1Msps ADC with differential input mode and programmable gain stage and auto calibration
One 2-channel 12-bit 1Msps DAC
One Analog Comparator with flexible input selection, Selectable input hysteresis
32-bit Cyclic Redundancy Check Calculation Unit (CRCCU)
Register Write Protection