Описание
The SAM4S series is a member of a family of Flash microcontrollers based on the high-performance 32-bit ARM Cortex -M4 RISC processor. It operates at a maximum speed of 120 MHz and features up to 2048 Kbytes of Flash, with optional dual-bank implementation and cache memory, and up to 160 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 to connect to SRAM, PSRAM, NOR Flash, LCD Module and NAND Flash, two USARTs, two UARTs, two TWIs, three SPIs, one I2S, as well as one PWM timer, two three-channel general-purpose 16-bit timers (with stepper motor and quadrature decoder logic support), one RTC, one 12-bit ADC, one 12-bit DAC and one analog comparator. The SAM4S series is ready for capacitive touch, offering native support for the QTouch library for easy implementation of buttons, wheels and sliders. The SAM4S 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 SAM4S to sustain a wide range of applications that includes consumer, industrial control, and PC peripherals The SAM4S series is pin-to-pin compatible with the SAM3N, SAM3S series (48-, 64- and 100-pin versions), SAM4N and SAM7S legacy series (64-pin versions). It operates from 1.62V to 3.6V. The SAM4S series is pin-to-pin compatible with the SAM3N, SAM3S series (48-, 64- and 100-pin versions), SAM4N and SAM7S legacy series (64-pin versions).
- Core
- ARM Cortex-M4 with 2 Kbytes of cache running at up to 120 MHz
- Memory Protection Unit (MPU)
- DSP Instruction Set
- Thumb®-2 instruction set
- Pin-to-pin compatible with SAM3N, SAM3S, SAM4N and SAM7S legacy products (64-pin version)
- Memories
- Up to 2048 Kbytes embedded Flash with optional dual-bank and cache memory
- Up to 160 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 240 MHz for device clock and for USB
- Temperature sensor
- Low-power tamper detection on two inputs, anti-tampering by immediate clear of general-purpose backup registers
- Up to 22 Peripheral DMA (PDC) Channels
- Low-Power Modes
- Sleep, wait and backup modes, down to 1 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 two USARTs with ISO7816, IrDA®, RS-485, SPI, Manchester and Modem Mode
- Two 2-wire UARTs
- Up to two Two-Wire Interface modules (I2C-compatible), one SPI, one Serial Synchronous Controller (I2S), one high-speed Multimedia Card Interface (SDIO/SD Card/MMC)
- Two three-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, alarm and 32 kHz trimming features
- Up to 16-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
