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ATSAMD21E18A-AUT

MCHPATSAMD21E18A-AUT

Microchip Technology
ARM® Cortex®-M0+ SAM D21E, Functional Safety (FuSa) Microcontroller IC 32-Bit 48MHz 256KB (256K x 8) FLASH 32-TQFP (7x7)
Active11,120 in stock
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Overview

The ATSAMD21E18A-AUT is a high-performance, low-power 32-bit microcontroller based on the ARM Cortex-M0+ processor, operating at a maximum frequency of 48MHz. It features 256KB of Flash memory and is specifically designed for applications requiring functional safety (FuSa) support in a compact 32-TQFP package.

Why Choose This Part

This MCU provides a rich set of peripherals including a 12-bit ADC, 10-bit DAC, and up to four SERCOM modules that can be configured as I2C, SPI, or UART. Its hardware-based functional safety capabilities allow for faster certification in safety-critical industrial environments.

Applications

Functional Safety Systems
Utilized in industrial and automotive applications where IEC 61508 or ISO 26262 compliance is required through its hardware safety features.
Battery-Powered IoT Nodes
The ultra-low power consumption and SleepWalking peripherals make it ideal for remote sensors that must run for years on a single cell.
Compact Medical Devices
The small 7x7mm footprint and integrated analog peripherals support portable health monitoring equipment.

Key Specifications

Speed 48MHz
RAM Size 32K x 8
Core Size 32-Bit
Peripherals Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
Connectivity I2C, LINbus, SPI, UART/USART, USB
Mounting Type Surface Mount
Number of I/O 26
Core Processor ARM Cortex-M0+
Package / Case 32-TQFP
Data Converters A/D 10x12b; 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 32-TQFP (7x7)
Voltage - Supply (Vcc/Vdd) 1.62V ~ 3.6V

Getting Started

Development is supported by the Microchip SAM D21 Xplained Pro evaluation kit and the Atmel Studio or MPLAB X IDEs. Engineers can leverage the Atmel Software Framework (ASF) for a comprehensive library of drivers and example code to accelerate firmware development.

Dev Boards

Development boards and breakout modules featuring the ATSAMD21E18A-AUT or compatible chips — ready to use for prototyping.

Seeed Studio XIAO SAMD21 Seeed Technology Co., Ltd
ATSAMD21G18 XIAO SAMD21 SAM D ARM® Cortex®-M0 MCU 32-Bit Embedded Evaluation Board
Digi-Key 509 in stock
Seeed Studio XIAO SAMD21 Seeed Technology Co., Ltd
ATSAMD21G18 XIAO SAMD21 SAM D ARM® Cortex®-M0+ MCU 32-Bit Embedded Evaluation Board
Digi-Key 3,141 in stock
Adafruit Feather M0 Express Adafruit Industries LLC
ATSAMD21G18 Feather M0 Express SAM D ARM® Cortex®-M0+ MCU 32-Bit Embedded Evaluation Board
Digi-Key Mouser 364 in stock
The Arduino Nano 33 IoT with Headers (ABX00032) is a compact and versatile development board featuring the ARM® Cortex®-
Digi-Key Mouser 355 in stock
The Arduino Nano 33 IoT (ABX00027) is an advanced evaluation platform designed for IoT applications, featuring the 32 bi
Digi-Key Mouser 657 in stock
Part of SAM Microcontrollers family » SAMD21E

SAMD21E Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number RAM Package Flash Temp Range Stock
ATSAMD21E18A-AUT (this part) 32K TQFP-32 256KB -40degC ~ 85degC (.. 11,120
ATSAMD21E18A-MUT 32K VFQFN-32 256KB -40degC ~ 85degC (.. 24,578
ATSAMD21E18A-AFT 32K TQFP-32 256KB -40degC ~ 125degC .. 11,484
ATSAMD21E15B-AFT 4K TQFP-32 32KB -40degC ~ 125degC .. 2,970
ATSAMD21E18A-AU (Microchip) 32K TQFP-32 256KB -40degC ~ 85degC (.. 1,742
ATSAMD21E17A-AUT 16K TQFP-32 128KB -40degC ~ 85degC (.. 2,730
Also available as: ATSAMD21E17D-MZVAO, ATSAMD21E16B-AZVAO, ATSAMD21E18A-AZVAO, ATSAMD21E17D-AZVAO, ATSAMD21E18A-MZVAO, ATSAMD21E15B-MFT

Also Consider

ATSAMD21G18A-AUT MCHPMicrochip Technology - Offers a higher pin count in a 48-TQFP package for designs requiring more I/O and SERCOM interfaces.