ATSAMD20J16A-ANT

Overview

The ATSAMD20J16A-ANT is a Microchip Technology ARM Cortex-M0+ microcontroller in a 64-TQFP package. It features 64 KB of Flash memory and 8 KB of SRAM, operating at a maximum clock frequency of 48 MHz. The device supports an input/output count of 52 I/Os and includes a 12-bit ADC with 20 channels and a 10-bit DAC. Operating voltage ranges from 1.62 V to 3.6 V, with an extended temperature range of -40°C to 105°C.

Feature Summary

• ARM Cortex-M0+ processor core with single-cycle hardware multiplier
• Integrated analog peripherals including 20-channel 12-bit ADC and 1x10-bit DAC
• Internal oscillator system for clock generation without external components

Applications

• Home automation systems
• Consumer electronics devices
• Industrial metering applications

Procurement Notes

Verify the specific suffix ANT corresponds to the 64-TQFP package and industrial temperature grade (-40°C to 105°C). Confirm RoHS compliance status through official Microchip documentation. Ensure the ordering part number matches the required pinout and voltage specifications for the target design.

Selection Notes

Select this component when a 64-pin TQFP form factor is required alongside 64 KB of program memory. Consider the 1.62 V minimum supply voltage for low-power battery applications. Evaluate the 52 available I/O pins against interface requirements such as SPI, I2C, and USART connections.

Part Context

This unit belongs to the SAM D20J series within the SAM D1/2x family. It utilizes the ARM Cortex-M0+ architecture optimized for code density and power efficiency. The device integrates standard connectivity interfaces and analog conversion capabilities suitable for embedded control tasks.

Replacement Considerations

Cross-reference with ATSAMD20J16A-MNT for QFN packaging alternatives. Verify functional compatibility with ATSAMD20J18A variants if increased memory capacity is needed, noting differences in Flash and SRAM sizes.

FAQ

What is the maximum operating speed of the CPU?

The ARM Cortex-M0+ core operates at a maximum frequency of 48 MHz.

Does this MCU include an internal oscillator?

Yes, the datasheet specifies an internal oscillator type, reducing the need for external clock components.