Описание
The Microchip | SMART SAM3S series is a member of a family of Flashmicrocontrollers based on the high performance 32-bit ARM Cortex -M3processor. It operates at a maximum speed of 64 MHz and features up to 256Kbytes of Flash and up to 48 Kbytes of SRAM. The peripheral set includes a FullSpeed USB Device port with embedded transceiver, a High Speed MCI forSDIO/SD/MMC, an External Bus Interface featuring a Static Memory Controllerproviding connection to SRAM, PSRAM, NOR Flash, LCD Module and NANDFlash, 2x USARTs, 2x UARTs, 2x TWIs, 3x SPI, an I2S, as well as 1 PWM timer,two 3-channel general-purpose 16-bit timers an RTC, an ADC, a 12-bit DAC andan analog comparator. The SAM3S device is a medium range general purpose microcontroller with thebest ratio in terms of reduced power consumption, processing power andperipheral set. This enables the SAM3S to sustain a wide range of applicationsincluding consumer, industrial control, and PC peripherals.It operates from 1.62V to 3.6V and is available in 48-, 64- and 100-pin QFP, 48-and 64-pin QFN, and 100-pin TFBGA packages. The SAM3S series is the ideal migration path from the SAM7S series forapplications that require more performance.The SAM3S series is pin-to-pincompatible with the SAM3N, SAM4S series (64- and 100-pin versions) andSAM7S series (64-pin versions).
- 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 series (48- and 64-pin versions)
- Memories
- From 64 to 256 Kbytes embedded Flash, 128-bit wide access, memory accelerator, single plane
- From 16 to 48 Kbytes embedded SRAM
- 16 Kbytes ROM with embedded bootloader routines (UART, USB) and IAP routines
- 8-bit Static Memory Controller (SMC): SRAM, PSRAM, NOR and NAND Flash support
- Memory Protection Unit (MPU)
- 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
- Two PLLs up to 130 MHz for device clock and for USB
- Temperature Sensor
- Up to 22 peripheral DMA (PDC) channels
- Low Power Modes
- Sleep and Backup modes, down to 1.8 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 2 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)
- Up to 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
- 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)
- Write Protected Registers
