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Microchip ATSAMD20J14A-MU

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ATSAMD20J14A-MU Overview

A low-power, high-performance Microchip'sARM® Cortex®-M0+ based flash microcontroller, the ATSAMD20J14 is ideal for a wide range of home automation, consumer, metering, and industrial applications. It features:

  • 16KB of flash and 2KB of SRAM
  • Up to 48MHz operating frequency
  • Six serial communication modules (SERCOM) configurable as UART/USART, SPI or I2C, eight 16-bit timer/counters, 32-bit Real Time clock and calendar, 16 PWM channels, one 20-channel 12-bit ADC, one 10-bit DAC
  • Support for up to 256 touch channels
  • 1.62V to 3.63V power supply
  • Easy pin migration to SAMD20E and SAMD20G devices
  • Supported by Atmel Studio, ASF and the SAM D20 Xplained Pro kit
Supported by MPLAB X IDE and MPLAB Harmony.

Features

    Processor

    • ARM Cortex-M0+ CPU running at up to 48MHz
    • Single-cycle hardware multiplier

    Memories

    • 16KB in-system self-programmable Flash
    • 2KB 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 96MHz
    • fractional digital phase locked loop (FDPLL96M)
    • External interrupt controller (EIC)
    • 16 external interrupts
    • One non-maskable interrupt
    • Two-pin serial wire debug (SWD) programming, test and debugging interface

    Low power

    • Idle and standby sleep modes
    • SleepWalking peripherals

    Peripherals

    • 8-channel event system
    • Five 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
    • 32-bit real time counter (RTC) with clock/calendar function
    • Watchdog timer (WDT)
    • CRC-32 generator
    • Up to six serial communication interfaces (SERCOM), each configurable to operate as either:
      • USART with full-duplex and single-wire half-duplex configuration
      • I2C up to 40kHz
      • SPI
    • One 12-bit, 350ksps analog-to-digital converter (ADC) with 20 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

    • 52 GPIO pins

    Packages

    • 64-pin TQFP, QFN
    • 64-ball UFBGA

    Operating voltage

    • 1.62V to 3.63V

    Power Consumption

    • Down to 70µA/MHz in active mode
    • Down to 8µA running the peripheral Touch Controller

    Temperature range

    • –40 to +105°C

Applications

SAM D20J

Product Parameter

  • Core Processor ARM Cortex M0+

  • Speed 48MHz

  • Operating Temperature -40℃ ~ 85℃ (TA)

  • Program Memory Type FLASH

  • RAM Size 2K x 8

  • Number of I/O 52

  • Peripherals Brown-out Detect/Reset, POR, WDT

  • Mounting Type Surface Mount

  • Oscillator Type Internal

  • Supplier Device Package 64-QFN (9x9)

  • Package / Case 64-VFQFN Exposed Pad

  • Core Size 32-Bit

  • Connectivity I2C, SPI, UART/USART

  • Program Memory Size 16KB (16K x 8)

  • Data Converters A/D 20x12b; D/A 1x10b

  • Voltage - Supply (Vcc/Vdd) 1.62V ~ 3.6V

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