描述 Description

A low-power, high-performance Microchip's ARM? Cortex?-M0+ based flash microcontroller, the ATSAMD21E17 is ideal for a wide range of home automation, consumer, metering, and industrial applications. It features:128KB of flash and 16KB of SRAM4K RWW support on MRL D versionUp to 48MHz operating frequencyFour serial communication modules (SERCOM) configurable as UART/USART, SPI or I2C, three 16-bit timer/counters, 32-bit Real-Time Clock and calendar, 18 PWM channels, one 14-channel 12-bit ADC, one 10-bit DACFull Speed USB Device and embedded HostSupport for up to 60 touch channels1.62V to 3.63V power supplyEasy pin migration to SAMD21G and SAMD21J devicesSupported by MPLAB X IDE and MPLAB Harmony.Functional SafetyThis device supports the ISO 26262 (ASIL B), IEC 61508 (SIL 2) and?IEC 60730 (Class B) functional safety standards.??·???The Functional Safety Manual, FMEDA and information on the Diagnostic Software are available under NDA through the request form on the?32-bit Microcontrollers Functional Safety?web page.·???To request any information about the SIL 2 STL, please fill out and submit the request form on?Industrial Safety?Self-Test Library?web page.·??Learn more about??32-bit MCUs with Functional Safety?capabilities?including device hardware and certified software libraries.

特性 Features

Processor
? ARM Cortex-M0+ CPU running at up to 48MHz
? Single-cycle hardware multiplier
? Micro Trace Buffer
Memories
? 128KB in-system self-programmable Flash
? 4K RWW Support for device variant D
? 16KB SRAM Memory
System
? Power-on reset (POR) and brown-out detection (BOD)
? Internal and external clock options with 48MHDigital Frequency Locked Loop (DFLL48M) and 48MHto 96MHFractional
? External Interrupt Controller (EIC)
? 16 external interrupts
? One non-maskable interrupt
? Two-pin Serial Wire Debug (SWD) programming, test and debugging interface
? Drop in compatible with SAM D20
Low Power
? Idle and standby sleep modes
? SleepWalking peripherals
Peripherals
? 12-channel Direct Memory Access Controller (DMAC)
? 12-channel Event System
? Three 16-bit Timer/Counters (TC), configurable as either:
? One 16-bit TC with compare/capture channels
? One 8-bit TC with compare/capture channels
? One 32-bit TC with compare/capture channels, by using two TCs
? Up To Four 24-bit Timer/Counters for Control (TCC), with extended functions:
? Up to four compare channels with optional complementary output
? Generation of synchronized pulse width modulation (PWM) pattern across port pins
? Deterministic fault protection, fast decay and configurable dead-time between complementary output
? Dithering that increase resolution with up to 5 bit and reduce quantization error
? 32-bit Real Time Counter (RTC) with clock/calendar function
? Watchdog Timer (WDT)
? CRC-32 generator
? One full-speed (12Mbps) Universal Serial Bus (USB) 2.0 interface
? Embedded device function
? Eight endpoints
? Four Serial Communication Interfaces (SERCOM), each configurable to operate as either:
? USART with full-duplex and single-wire half-duplex configuration
? I2C Bus up to 3.4MHz
? SMBUS/PMBUS
? SPI
? LIN client
? 12-bit, 350ksps Analog-to-Digital Converter (ADC) with up to 10 channels
? Differential and single-ended input
? 1/2x to 16x programmable gain stage
? Automatic offset and gain error compensation
? Oversampling and decimation in hardware to support 13-, 14-, 15- or 16-bit resolution
? 10-bit, 350ksps Digital-to-Analog Converter (DAC)
? Two Analog Comparators (AC) with window compare function
? Peripheral Touch Controller (PTC)
? 256-channel capacitive touch and proximity sensing
I/O
? 26 GPIO pins
Packages
? 32-pin TQSP, QFN, WLCSP
Operating Voltage
? 1.62V – 3.63V