ATSAMD20J17A-MNT

Overview

The ATSAMD20J17A-MNT is a 32-bit microcontroller unit (MCU) based on the ARM Cortex-M0+ core, manufactured by Microchip Technology. It features 128 KB of in-system programmable Flash memory and 16 KB of SRAM. The device operates at a maximum clock frequency of 48 MHz and supports a supply voltage range of 2.7 V to 5.5 V. It includes an internal oscillator and provides 52 general-purpose I/O pins. Key peripherals include multiple timers/counters, a 12-bit ADC with 20 channels, and a 10-bit DAC. Communication interfaces supported are I2C, SPI, UART, and USART. The component is housed in a 64-QFN package and is rated for an operating temperature range of -40°C to +105°C.

Feature Summary

• Integrates an ARM Cortex-M0+ processor core for efficient 32-bit processing capabilities.
• Includes extensive analog conversion resources with 20-channel 12-bit ADC and one 10-bit DAC.
• Supports multiple serial communication protocols including I2C, SPI, UART, and USART.
• Features built-in power management peripherals such as Power-On Reset, Brown-Out Detect, and Watchdog Timer.

Applications

• Industrial control systems requiring robust peripheral integration
• Consumer electronics utilizing low-power 32-bit processing
• Embedded applications needing multiple analog input channels
• Communication gateways supporting standard serial interfaces

Procurement Notes

Verify the specific suffix MNT corresponds to the tape and reel packaging format when ordering. Confirm that the 2.7V to 5.5V supply voltage range aligns with your system design requirements. Ensure compatibility with the 64-QFN footprint during PCB layout. Check for any recent product change notices regarding pinout or electrical characteristics from the manufacturer.

Selection Notes

Select this model when a balance of moderate Flash capacity and high I/O count is required within a compact QFN package. It is suitable for designs needing multiple analog inputs without external converters. Consider the 48 MHz performance limit and the specific voltage range against other SAM D20 variants if different storage or speed is needed.

Part Context

This component belongs to the SAM D20 family of 32-bit ARM Cortex-M0+ microcontrollers. The family is designed for low-power applications offering high performance per watt. The J17 variant specifically denotes the 128 KB Flash and 16 KB SRAM configuration within the SAM D20J series, distinguishing it from other memory sizes in the lineup.

Replacement Considerations

Direct substitutes within the same package and pinout include other SAM D20J variants with identical memory maps, such as ATSAMD20J17A-MUT. Verify that alternative packages like BGA or larger QFN options maintain the required I/O count and peripheral set for your application.