Microchip Technology

ATSAMD21E18A-AU  

Microcontrollers

The ATSAMD21E18A-AU is a low-power microcontroller unit (MCU) from Microchip Technology. It belongs to the SAM D21 family of ARM Cortex-M0+ based microcontrollers, designed for a wide range of embedded applications.

Description:

The ATSAMD21E18A-AU features a 32-bit ARM Cortex-M0+ processor with a maximum CPU frequency of 48 MHz. It comes in a 64-pin TQFP package. The device includes 256 KB of flash memory, 32 KB of SRAM, and a wide range of peripherals to support various interfaces and communication protocols.

Features:

1. ARM Cortex-M0+ processor with a max CPU frequency of 48 MHz
2. 256 KB of flash memory
3. 32 KB of SRAM
4. 64-pin TQFP package
5. Peripherals include:
   • Advanced Control Interface (ACI) for I2C interface
   • Serial Peripheral Interface (SPI)
   • Universal Asynchronous Receiver/Transmitter (UART) with IrDA support
   • Universal Serial Bus (USB) with Device, Host, and Dual roles
   • I2S interface
   • 12-bit Analog-to-Digital Converter (ADC) with up to 20 channels
   • 10-bit Digital-to-Analog Converter (DAC)
   • Capacitive touch sense channels
   • Event System for inter-peripheral connections and signal routing
6. Core Coupling Device (CCD) for simplified communication with other ATSAMD21 MCUs
7. Power management features, including a range of low-power sleep modes
8. Security features such as a unique 128-bit UID and support for AES-128, SHA-256, and ECC P-256 cryptography

Applications:

The ATSAMD21E18A-AU is suitable for a wide range of embedded applications, including but not limited to:

1. Industrial control and automation
2. Home automation and IoT devices
3. Portable electronics and wearables
4. Medical devices and equipment
5. Smart sensors and actuators
6. Human Interface Devices (HID) such as keyboards and mice
7. Battery-powered devices, thanks to its low-power features

The ATSAMD21E18A-AU's combination of processing power, memory, peripherals, and low-power capabilities make it a versatile choice for a variety of embedded systems requiring efficient and secure operation.

ATSAMD21E18A-AU Documents

Download datasheets and manufacturer documentation for ATSAMD21E18A-AU

Errata :

SAM D21 Family Errata, Clarification      

PCN Assembly/Origin :

Assembly 14/Sep/2020      

Datasheets :

SAM D21/DA1 Family Datasheet      

PCN Packaging :

Boxes 07/Dec/2016       Transfer to Microchip/Label/Pkg 5/Sep/2016      

Design Resources :

ATSAMD21E18 Development Tool Selector      

PCN Design/Specification :

SAM D21/DA1 10/Sep/2021       SAM D21/DA1 05/Apr/2021      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH