MCHPATSAMC21G18A-AZVAO

Overview

The ATSAMC21G18A-AZVAO is a Microchip SAM C21 ARM Cortex-M0+ microcontroller in a 48-pin TQFP package. It is aimed at embedded control designs that need a 5 V-capable MCU, moderate flash capacity, and a simple low-power control core. The 48 MHz operating class and on-chip flash make it suitable for compact standalone control boards.

Why Choose This Part

This part is attractive when you want a 5 V-capable Microchip MCU in a compact 48-pin package with a straightforward Cortex-M0+ architecture. The SAM C21 family is commonly used for embedded control rather than heavy compute, so it is a practical choice for deterministic firmware and modest peripheral needs. The tray/package variant also makes it suitable for production assembly.

Applications

Getting Started

Use Microchip Studio or MPLAB X IDE with the XC32 toolchain for development. For first bring-up, pair the MCU with a supported Microchip evaluation board or a custom board that exposes the SWD programming/debug interface. Start with a minimal clock, reset, and programming header design, then verify power, boot, and I/O pin muxing before adding peripherals.

SAMC21G Family

Also Consider

ATSAMD21G18A-AU MCHPMicrochip Technology - A closely related SAM D21 alternative if you want a similar Cortex-M0+ MCU with broad ecosystem support.

STM32G031K8T6 STMicroelectronics - A compact low-power Cortex-M0+ alternative for cost-sensitive control designs.