ATSAMD21J18A-MU The ATSAMD21J18A-MU is a 32-bit ARM Cortex-M0+ microcontroller from Microchip Technology with 256KB Flash, 32KB RAM, and 48MHz clock speed in a 64-QFN package.
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ATSAMD21J18A-MU

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The ATSAMD21J18A-MU is a 32-bit ARM Cortex-M0+ microcontroller from Microchip Technology with 256KB Flash, 32KB RAM, and 48MHz clock speed in a 64-QFN package.
✓ Total Stock: 3,539 pcs

ATSAMD21J18A-MU Available from 1 distributor

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ATSAMD21J18A-MU Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Connectivity
Core Processor
Core Size
Data Converters
Mounting Type
Number of I
Operating Temperature
Oscillator Type
Peripherals
Program Memory Size
Program Memory Type
RAM Size
Speed
Supplier Device Package
Voltage

ATSAMD21J18A-MU Description

Short technical summary and product information.

The ATSAMD21J18A-MU is a 32-bit microcontroller based on the ARM Cortex-M0+ core, operating at up to 48 MHz. It features 256 KB of Flash program memory and 32 KB of SRAM, making it suitable for a wide range of embedded applications. The device supports a supply voltage range of 1.62V to 3.6V and operates over a temperature range of -40°C to 85°C.

 

Connectivity options include I²C, LINbus, SPI, UART/USART, and USB. On-chip peripherals include brown-out detect/reset, DMA, I²S, POR, PWM, and watchdog timer. The microcontroller also integrates a 20-channel 12-bit analog-to-digital converter and a 1-channel 10-bit digital-to-analog converter. With 52 general-purpose I/O pins, it provides ample interface for external devices.

 

The device is housed in a 64-VFQFN exposed pad package (supplier device package 64-QFN, 9x9 mm) and is surface mountable. This microcontroller is designed for general-purpose embedded control, industrial, and consumer applications.

ATSAMD21J18A-MU Quick Information

Product Type: Microcontroller
Series: SAM D21
Canonical Name: Microchip Technology ATSAMD21J18A-MU ARM Cortex-M0+ Microcontroller
Subcategory: 32-bit ARM Cortex-M0+ Microcontroller

ATSAMD21J18A-MU Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

ATSAMD21J18A-MU Features

  • 32-bit ARM Cortex-M0+ core at 48 MHz.
  • 256KB Flash and 32KB SRAM memory.
  • Broad voltage range 1.62V to 3.6V.
  • 52 general-purpose I/O pins.
  • Integrated USB, I²C, SPI, and UART interfaces.

ATSAMD21J18A-MU Applications

  • Ideal for industrial control and automation.
  • Suitable for consumer electronics and IoT devices.
  • Used in sensor interfacing and data acquisition.
  • Applicable in automotive body electronics.

ATSAMD21J18A-MU FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the ATSAMD21J18A-MU?

The supply voltage range is 1.62V to 3.6V.

What is the operating temperature range?

The device operates from -40°C to 85°C.

What is the package type?

The package is 64-VFQFN Exposed Pad, with supplier device package 64-QFN (9x9).

What is the core processor?

The core is an ARM Cortex-M0+ 32-bit single-core processor.

What is the program memory size?

The Flash program memory is 256 KB.

What is the RoHS status?

RoHS3 Compliant (unverified, low confidence).

How many I/O pins does the device have?

It has 52 general-purpose I/O pins.

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