ATSAMD20J16A-CNT

Overview

The ATSAMD20J16A-CNT 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 an operating voltage range of 1.62V to 3.63V. It is housed in a 64-UFBGA package with a temperature range of -40°C to +105°C.

Feature Summary

• Integrates a high-performance ARM Cortex-M0+ processor running up to 48MHz for efficient code execution.
• Includes extensive analog peripherals featuring twenty 12-bit ADC channels and one 10-bit DAC.
• Provides comprehensive connectivity options including multiple I2C, SPI, UART, and USART interfaces.

Applications

• Low-power consumer electronics requiring small form factors
• Industrial control systems operating in extended temperature environments
• Wearable devices utilizing battery-powered operation

Procurement Notes

Verify the specific suffix CNT corresponds to the UFBGA-64 package and industrial temperature grade (-40°C to +105°C). Confirm that the voltage range is limited to 1.62V–3.63V, distinct from the 2.7V–5.5V variants. Ensure compatibility with ECAD models for the 64-ball BGA footprint during PCB layout.

Selection Notes

Select this component when a compact BGA package is required for space-constrained designs. Choose over TQFP or QFN variants if board real estate is critical and BGA assembly capabilities are available. Consider the 1.62V–3.63V supply constraint against system power rails compared to wider voltage range alternatives.

Part Context

This part belongs to the Microchip SAM D20 family, designed for low-power applications. The 'J' designation indicates the specific pin count and peripheral configuration within the series. The 'CNT' suffix identifies the UFBGA packaging and industrial temperature rating, differentiating it from automotive or commercial grade packages.

Replacement Considerations

ATSAMD20J16A-AU offers identical electrical specifications in a TQFP-64 package. ATSAMD20J16A-MNT provides the same performance in a QFN-64 package. Verify pinout compatibility and thermal requirements when substituting between package types.