ATSAMD20J18A-AUT Microchip 32bit MCU

ATSAMD20J18A-AUT Overview

A low-power, high-performance Microchip'sARM® Cortex®-M0+ based flash microcontroller, the ATSAMD20J18 is ideal for a wide range of home automation, consumer, metering, and industrial applications. It features:

256KB of flash and 32KB 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.

ECAD Model

Symbol

Footprint

Features

Processor

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

Memories

256KB in-system self-programmable Flash
32KB 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