Microchip Technology

ATSAMD21G18A-AU  

Microcontrollers

The ATSAMD21G18A-AU is a low-power microcontroller unit (MCU) from Microchip Technology. It is part of the SAM D21 family of ARM Cortex-M0+ based MCUs, which are designed for a wide range of applications that require low power consumption and high performance.

Description:

The ATSAMD21G18A-AU features a 32-bit ARM Cortex-M0+ processor with a maximum CPU frequency of 48 MHz. It includes 256 KB of flash memory, 32 KB of SRAM, and a range of peripherals such as USB, SERCOM (Serial Communication Interface), ADC (Analog-to-Digital Converter), DAC (Digital-to-Analog Converter), and more. The device is available in a 64-pin TQFP (Thin Quad Flat Package) package.

Features:

1. ARM Cortex-M0+ processor with a maximum CPU frequency of 48 MHz
2. 256 KB of flash memory
3. 32 KB of SRAM
4. USB 2.0 interface with host, device, and OTG (On-The-Go) support
5. SERCOM modules for SPI (Serial Peripheral Interface), I2C (Inter-Integrated Circuit), and UART (Universal Asynchronous Receiver-Transmitter) communication
6. 12-channel ADC with up to 16-bit resolution
7. 2-channel DAC with 8-bit resolution
8. Flexible clock system with internal and external oscillator options
9. Peripheral Chip Select (PCS) interface for external memory
10. Event system for low-power and low-glitch noise event routing
11. Core-coupled memory interface for efficient memory access
12. Sleep, standby, and backup power modes for low-power operation
13. Security features such as secure boot and flash read protection

Applications:

The ATSAMD21G18A-AU is suitable for a wide range of applications that require low power consumption and high performance. Some of the potential applications include:

1. Industrial control and automation
2. Medical devices and equipment
3. Portable and wearable electronics
4. Home automation and IoT devices
5. Smart sensors and actuators
6. Human Interface Devices (HID) such as keyboards and mice
7. Battery-powered devices and energy-harvesting applications
8. Lighting control systems
9. Consumer electronics
10. Automotive infotainment systems

The ATSAMD21G18A-AU's low-power capabilities, combined with its rich set of peripherals and features, make it an ideal choice for a variety of embedded systems and IoT applications.

ATSAMD21G18A-AU Documents

Download datasheets and manufacturer documentation for ATSAMD21G18A-AU

Errata :

SAM D21 Family Errata, Clarification      

PCN Assembly/Origin :

ATSAMD21G1xx 29/Apr/2020      

Datasheets :

SAM D21/DA1 Family Datasheet      

PCN Packaging :

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

Design Resources :

ATSAMD21G18 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