ATSAM3SD8BA-AU

The Atmel | SMART SAM3S8/SD8 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 SAM3S8/SD8 series is ready for capacitive touch thanks to the QTouch library, offering an easy way to implement buttons, wheels and sliders. The SAM3S8/SD8 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 SAM3S8/SD8 series is the ideal migration path from the SAM7S series for applications that require more performance. The SAM3S8/SD8 series is pin-to-pin compatible with the SAM7S series.

Applications

• consumer
• industrial control
• PC peripherals

Key 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
• I/O Up to 79 I/O lines with external interrupt capability (edge or level sensitivity), debouncing, glitch filtering and ondie Series Resistor Termination Three 32-bit Parallel Input/Output Controllers, Peripheral DMA assisted Parallel Capture Mode