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ATSAMC21G18A-MUT

MCHPATSAMC21G18A-MUT

Microchip Technology
ARM® Cortex®-M0+ SAM C21, Functional Safety (FuSa) Microcontroller IC 32-Bit 48MHz 256KB (256K x 8) FLASH 48-QFN (7x7)
Active8,385 in stock
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Overview

The ATSAMC21G18A-MUT is a 32-bit ARM Cortex-M0+ microcontroller designed for high-endurance industrial and automotive applications. It operates at 48MHz and is specifically engineered for 5V operation, providing robust signal integrity and noise immunity in harsh electrical environments. This variant includes dual CAN-FD interfaces and hardware-based functional safety features.

Why Choose This Part

The primary advantage is its native 2.7V to 5.5V operating range, eliminating the need for level shifters in 5V industrial systems. It provides a significant performance boost over 8-bit MCUs while maintaining high noise immunity and offering robust CAN-FD support.

Applications

Automotive Body Control
Ideal for controlling windows, mirrors, and lighting modules where 5V logic and CAN connectivity are required.
Industrial Motor Control
Leverages the 5V supply and high-speed analog peripherals to drive power electronics in noisy industrial settings.
Safety-Critical Systems
Utilizes built-in functional safety features like the hardware CRC and Windowed Watchdog Timer (WDT) for ISO 26262 compliance.
CAN-FD Networking
Acts as a gateway or node in modern vehicle networks requiring higher bandwidth than standard CAN 2.0.

Key Specifications

Speed 48MHz
RAM Size 32K x 8
Core Size 32-Bit
Peripherals Brown-out Detect/Reset, DMA, POR, WDT
Connectivity CANbus, I2C, LINbus, SPI, UART/USART
Mounting Type Surface Mount
Number of I/O 38
Core Processor ARM Cortex-M0+
Package / Case 48-VFQFN Exposed Pad
Data Converters A/D 14x12b, 2x16b; 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 48-QFN (7x7)
Voltage - Supply (Vcc/Vdd) 2.7V ~ 5.5V

Getting Started

Development is best supported by the SAM C21 Xplained Pro evaluation kit (ATSAMC21-XPRO). Engineers can use the Microchip Studio or MPLAB X IDEs along with the Harmony v3 framework for driver configuration and CAN stack implementation.

ATSAMC21G Family

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

Part Number RAM Package Flash Stock
ATSAMC21G18A-MUT (this part) 32K VFQFN-48 256KB 8,385
ATSAMC21G16A-AUT 8K TQFP-48 64KB —

Also Consider

ATSAMC21G18A-AUT MCHPMicrochip Technology - Same silicon in a TFPQ package for easier prototyping or soldering compared to the QFN variant.
STM32G431CBT6 STMicroelectronics - Offers a more powerful Cortex-M4F core and high-resolution timers if more processing throughput is needed.

Categories

Microcontrollers > Microchip