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ATSAMD21E18A-AU ARM Cortex-M0+ 32-bit microcontroller with 256KB Flash memory and 32KB RAM. Operates at 48MHz with 1.62V to 3.6V supply, in a 32-TQFP package.
Mfr Part #:

ATSAMD21E18A-AU

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
ARM Cortex-M0+ 32-bit microcontroller with 256KB Flash memory and 32KB RAM. Operates at 48MHz with 1.62V to 3.6V supply, in a 32-TQFP package.
✓ Total Stock: 3,667 pcs

ATSAMD21E18A-AU Available from 1 distributor

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✓ Non-Authorised
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3,667 pcs
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ATSAMD21E18A-AU 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
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ATSAMD21E18A-AU Description

Short technical summary and product information.

The ATSAMD21E18A-AU is a 32-bit microcontroller from Microchip Technology based on the ARM Cortex-M0+ core. It features 256KB of Flash program memory and 32KB of SRAM, operating at a maximum clock speed of 48MHz. The device supports a wide supply voltage range from 1.62V to 3.6V and is rated for industrial temperature ranges from -40°C to 85°C.

 

This microcontroller includes a rich set of peripherals such as brown-out detect/reset, DMA, I²S, POR, PWM, and watchdog timer. Connectivity options include I²C, LINbus, SPI, UART/USART, and USB. It also features 10-channel 12-bit ADC and a single 10-bit DAC, making it suitable for mixed-signal applications.

 

The ATSAMD21E18A-AU is offered in a 32-TQFP package with 26 I/O pins, designed for surface mount assembly. The package dimensions are 7x7mm, suitable for space-constrained designs.

ATSAMD21E18A-AU Quick Information

Product Type: Microcontroller
Series: SAM D21
Canonical Name: Microchip Technology ATSAMD21E18A-AU ARM Cortex-M0+ Microcontroller
Subcategory: ARM Cortex-M0+ Microcontrollers

ATSAMD21E18A-AU Compliance

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

ATSAMD21E18A-AU Features

  • ARM Cortex-M0+ 32-bit core processor.
  • 256KB Flash and 32KB SRAM memory.
  • 48MHz maximum clock frequency.
  • 1.62V to 3.6V supply voltage range.
  • 32-TQFP surface mount package.

ATSAMD21E18A-AU Applications

  • Used in industrial control and automation.
  • Ideal for IoT sensor nodes and gateways.
  • Suitable for consumer electronics and wearables.
  • Applied in automotive body control modules.

ATSAMD21E18A-AU FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the ATSAMD21E18A-AU?

1.62V to 3.6V.

What package does the ATSAMD21E18A-AU come in?

32-TQFP (7x7mm) surface mount package.

What is the operating temperature range?

-40°C to 85°C.

Is the ATSAMD21E18A-AU RoHS compliant?

RoHS3 Compliant (unverified).

What core processor does the ATSAMD21E18A-AU use?

ARM Cortex-M0+ 32-bit single-core.

What is the maximum clock speed?

48MHz.

How much Flash and RAM does it have?

256KB Flash and 32KB RAM.

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