ATSAMD20J14A-MU

Overview

The ATSAMD20J14A-MU is a 32-bit microcontroller based on the ARM Cortex-M0+ core, operating at a maximum frequency of 48MHz. It features 16KB of in-system programmable Flash memory and 2KB of SRAM. The device is housed in a 64-lead QFN package (QFN-64) with 52 available I/O lines. It supports supply voltages ranging from 1.62V to 1.95V and operates within a temperature range of -40°C to +85°C. Peripheral interfaces include I2C, SPI, and UART/USART.

Feature Summary

• Integrates an ARM Cortex-M0+ processor core for efficient code execution.
• Includes flexible SERCOM modules configurable as I2C, SPI, or USART.
• Features multiple 16-bit timer/counters for waveform generation.

Applications

• Consumer electronics devices
• Industrial control systems
• Metering applications

Procurement Notes

Verify the specific suffix 'MU' corresponds to the QFN-64 package and tape-and-reel orientation when sourcing. Confirm voltage specifications align with system requirements, as datasheet variations exist between 1.8V and 5.5V variants. Ensure ESD protection measures are implemented during handling due to moisture sensitivity classification.

Selection Notes

Select this component for designs requiring low power consumption and moderate processing capability. Compare against other SAM D20 variants if higher memory capacity or different pin counts are needed. Verify that the 1.62V to 1.95V supply range matches the target application's power budget.

Part Context

This part belongs to the Atmel SAM D20 series, which utilizes the ARM Cortex-M0+ architecture. The series is designed for ultra-low-power applications, offering a balance of performance and energy efficiency. The J14 variant specifically denotes the 16KB Flash configuration within the J-series lineup.

Replacement Considerations

ATSAMD20J14A-AU: Same electrical specifications but in a 64-LQFP package instead of QFN-64. Pinout compatibility must be verified for PCB redesigns.