ATSAMD20J16B-AN

Overview

The ATSAMD20J16B-AN is a 32-bit microcontroller from the SAM D20J series, featuring an ARM Cortex-M0+ core operating at 48MHz. It integrates 64KB of Flash memory and 8KB of SRAM within a 64-pin TQFP package. The device supports a supply voltage range of 1.62V to 3.63V and operates between -40°C and +105°C. It includes 52 I/O lines, 20-channel 12-bit ADC, one 10-bit DAC, and interfaces such as I2C, SPI, and USART.

Feature Summary

• ARM Cortex-M0+ processor core for efficient low-power execution
• Integrated analog peripherals including high-resolution ADC and DAC
• Multiple communication interfaces for system connectivity
• Industrial temperature range operation capability

Applications

• Industrial control systems requiring robust environmental tolerance
• Consumer electronics with limited power budgets
• Sensor interface modules utilizing analog-to-digital conversion
• General-purpose embedded applications needing multiple serial interfaces

Procurement Notes

Verify the specific suffix 'AN' against official Microchip documentation to confirm the exact package type and temperature grade. Ensure compatibility with existing board layouts regarding pinout and thermal requirements. Check for any recent Product Change Notifications (PCN) affecting assembly sites or materials. Confirm RoHS compliance status for your region's regulatory needs before finalizing procurement.

Selection Notes

Select this component when a balance of processing speed, analog capabilities, and industrial temperature range is required. The 64-pin TQFP package offers a practical footprint for prototyping and production compared to smaller QFN options. Consider the 48MHz clock speed sufficient for most real-time control tasks while maintaining low power consumption typical of Cortex-M0+ devices.

Part Context

This part belongs to the SAM D20 family, designed for cost-sensitive, low-power applications. It shares architectural similarities with other SAM D20 variants but differs in memory size, package, and peripheral count. The 'J' designation typically indicates a specific pin count and peripheral set within the broader SAM D20 ecosystem, targeting general-purpose MCU needs.