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ATSAMD20J18A-MUT

MCHPATSAMD20J18A-MUT

Microchip Technology
ARM® Cortex®-M0+ SAM D20J Microcontroller IC 32-Bit 48MHz 256KB (256K x 8) FLASH 64-QFN (9x9)
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Overview

The ATSAMD20J18A-MUT is a 32-bit ARM Cortex-M0+ microcontroller featuring 256KB of Flash and 32KB of SRAM. Operating at speeds up to 48MHz, this MCU integrates a rich set of peripherals including a 20-channel 12-bit ADC and a 10-bit DAC, making it suitable for mixed-signal processing in power-sensitive designs.

Why Choose This Part

This MCU offers a high I/O count of 52 pins in a compact 64-pin QFN package, providing significant design flexibility for complex peripheral routing. It balances 256KB of Flash with a power-efficient Cortex-M0+ core, drawing only 8.5mA at 48MHz during active run cycles.

Applications

Industrial Sensor Nodes
Utilizes the 20-channel 12-bit ADC for high-density analog data acquisition from multiple sensors in automation environments.
Home Automation Hubs
Manages user interfaces and communication via I2C, SPI, and USART while maintaining low power consumption in standby modes.
Battery-Powered Handhelds
Optimized for low-power operation with a standby current of 100uA and sleep current of 20uA to extend field life.
Simple Motor Controllers
Provides precise timing and PWM control for small DC motors or actuators in consumer and medical devices.

Key Specifications

Speed 48MHz
RAM Size 32K x 8
Core Size 32-Bit
Peripherals Brown-out Detect/Reset, POR, WDT
Connectivity I2C, SPI, UART/USART
Mounting Type Surface Mount
Number of I/O 52
Core Processor ARM Cortex-M0+
Package / Case 64-VFQFN Exposed Pad
Data Converters A/D 20x12b; D/A 1x10b
Oscillator Type Internal
Program Memory Size 256KB (256K x 8)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 64-QFN (9x9)
Voltage - Supply (Vcc/Vdd) 1.62V ~ 3.6V

Getting Started

Development is primarily supported by Microchip's Atmel Studio and MPLAB X IDEs using the SAM D20 Xplained Pro evaluation kit. Engineers can leverage the Atmel Software Framework (ASF) for driver libraries and the Atmel-ICE or Power Debugger for hardware programming and debugging.

ATSAMD20J Family

Part NumberDifferenceStock
ATSAMD20J17A-AU 128KB Flash 5,471
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