ATSAMD20J16A-CUT

Overview

The ATSAMD20J16A-CUT is a 32-bit microcontroller unit (MCU) based on the ARM Cortex-M0+ core, belonging to the SAM D20J series. It features 64KB of in-system programmable Flash memory and 8KB of SRAM. The device operates at a maximum clock frequency of 48MHz and supports a supply voltage range of 1.62V to 3.63V. It includes an internal oscillator, 52 general-purpose I/Os, and various peripherals such as I2C, SPI, and UART/USART interfaces. The component is housed in a 64-TQFP package.

Feature Summary

• ARM Cortex-M0+ processor core for efficient code execution
• Integrated analog-to-digital converter with multiple channels
• Supports standard serial communication protocols including I2C, SPI, and USART
• Includes power-on reset, brown-out detection, and watchdog timer

Applications

• General-purpose embedded control systems
• Low-power consumer electronics devices
• Industrial sensor nodes and monitoring equipment
• Simple human-machine interface controllers

Procurement Notes

Verify the specific suffix 'CUT' against official Microchip documentation to confirm it denotes Cut Tape packaging rather than a distinct functional variant. Ensure the operating temperature range and voltage specifications match your system requirements. Cross-reference the datasheet revision date to account for any errata or design changes affecting performance or compatibility.

Selection Notes

Select this part when a balance of moderate program memory and low power consumption is required for cost-sensitive applications. Compare pin counts and peripheral availability against other SAM D20 variants like the E or J series with different packages. Consider the TQFP form factor for ease of prototyping if surface mount volume is not extremely high.

Part Context

This MCU is part of the SAM D20 family, designed for low-power 32-bit applications. It shares architectural similarities with the SAM D21 but lacks certain advanced peripherals found in higher-end models. The J-series designation typically indicates specific pinout and peripheral configurations within the broader SAM D20 ecosystem.