Mfr Part #:

ATSAMD20J18A-AU

The ATSAMD20J18A-AU is a 32-bit ARM Cortex-M0+ microcontroller from Microchip Technology. It features 256KB Flash memory, 32KB RAM, a 48MHz clock, and 52 I/O pins in a 64-LQFP package.

✓ Total Stock: 6,657 pcs

ATSAMD20J18A-AU Available from 3 distributors

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Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Components Technology Group, Inc. ✓ Non-Authorised Inventory information	4,200 pcs On Request	4200 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Xingangxin ✓ Non-Authorised Inventory information	1,457 pcs On Request	1457 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Braun Electronic Components ✓ Non-Authorised Inventory information	1,000 pcs On Request	1000 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

ATSAMD20J18A-AU Description

Short technical summary and product information.

The ATSAMD20J18A-AU is a 32-bit microcontroller based on the ARM Cortex-M0+ core, operating at up to 48 MHz. It is part of Microchip Technology's SAM D20 family and is designed for embedded applications requiring a balance of performance, power efficiency, and peripheral integration.

This device includes 256KB of Flash program memory and 32KB of SRAM. It offers a rich set of peripherals: brown-out detect, power-on reset, watchdog timer, and an internal oscillator. Connectivity options include I²C, SPI, and UART/USART interfaces. For analog conversion, it features a 20-channel 12-bit ADC and a 1-channel 10-bit DAC. With 52 general-purpose I/O pins, it provides ample flexibility for interfacing with external components.

The microcontroller is housed in a 64-LQFP package with a 10x10 mm body and is designed for surface-mount assembly. It operates over a temperature range of -40°C to +85°C and supports a supply voltage from 1.62V to 3.6V, making it suitable for industrial and consumer environments.

ATSAMD20J18A-AU Quick Information

Product Type: Microcontroller

Canonical Name: Microchip Technology ATSAMD20J18A-AU Microcontroller

Subcategory: 32-bit Microcontrollers

ATSAMD20J18A-AU Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

ATSAMD20J18A-AU Features

32-bit ARM Cortex-M0+ core at 48MHz.
256KB Flash and 32KB SRAM memory.
52 general-purpose I/O pins.
Integrated 20-channel 12-bit ADC and 10-bit DAC.
I²C, SPI, and UART/USART connectivity.

ATSAMD20J18A-AU Applications

Industrial control and automation systems.
Sensor interfacing and data acquisition.
Consumer electronics and IoT devices.
Motor control and power management.
Embedded control with low power requirements.

ATSAMD20J18A-AU FAQs

7 frequently asked questions generated from this part’s specifications.

What is the supply voltage range of the ATSAMD20J18A-AU?

1.62V to 3.6V.

What is the package type of the ATSAMD20J18A-AU?

64-LQFP (10x10mm).

What is the operating temperature range of the ATSAMD20J18A-AU?

-40°C to 85°C.

Is the ATSAMD20J18A-AU RoHS compliant?

RoHS3 compliant (unverified).

What is the core processor of the ATSAMD20J18A-AU?

ARM Cortex-M0+ 32-bit.

How much flash memory does the ATSAMD20J18A-AU have?

256KB.

What connectivity interfaces are available on the ATSAMD20J18A-AU?

I²C, SPI, UART/USART.

Category	Microcontrollers
Manufacturer Name	Microchip Technology
Connectivity	I²C, SPI, UART/USART
Core Processor	ARM® Cortex®-M0+
Core Size	32-Bit Single-Core
Data Converters	A/D 20x12b; D/A 1x10b
Mounting Type	Surface Mount
Number of I	52
Operating Temperature	-40°C ~ 85°C (TA)
Oscillator Type	Internal
Peripherals	Brown-out Detect/Reset, POR, WDT
Program Memory Size	256KB (256K x 8)
Program Memory Type	FLASH
RAM Size	32KB (32K x 8)
Speed	48MHz
Supplier Device Package	64-LQFP (10x10)
Voltage	1.62V ~ 3.6V