ATSAMD20G16B-AU

Overview

The ATSAMD20G16B-AU is a 32-bit microcontroller based on the ARM Cortex-M0+ core, operating at a maximum frequency of 48 MHz. It features 64 kB of Flash program memory and 8 kB of SRAM data memory. The device includes one 12-bit analog-to-digital converter with 14 channels and one 10-bit digital-to-analog converter. It supports I2C, SPI, and USART interfaces within a 48-pin TQFP package. The unit functions within a supply voltage range of 1.62 V to 3.63 V and operates between -40°C and +85°C.

Feature Summary

• Integrates an ARM Cortex-M0+ processor for efficient low-power embedded control
• Provides multiple communication peripherals including I2C, SPI, and USART
• Includes mixed-signal capabilities with 12-bit ADC and 10-bit DAC

Applications

• Low-power industrial sensor nodes
• Portable consumer electronics devices
• General-purpose embedded control systems

Procurement Notes

Verify the specific part number against official Microchip documentation to confirm pinout compatibility and electrical specifications. Ensure that the selected package variant matches the intended PCB layout requirements. Cross-reference the manufacturing date code and lot information to maintain consistency in production batches. Confirm compliance with relevant environmental standards such as RoHS before finalizing procurement orders.

Selection Notes

Select this component when a balance of moderate memory capacity and low power consumption is required for cost-sensitive applications. The 48 MHz processing speed suits simple control loops without complex real-time constraints. Consider the available GPIO count and peripheral set against system interface needs. Evaluate thermal performance within the specified operating temperature range for the target enclosure.

Part Context

This microcontroller belongs to the SAMD20 family, designed for high-performance yet energy-efficient applications. The series utilizes the ARM Cortex-M0+ architecture to deliver code density comparable to 8-bit controllers while offering 32-bit processing power. It targets markets requiring reliable operation in compact form factors with minimal external components.

Replacement Considerations

ATSAMD20G17A-AU offers increased Flash memory capacity within the same package.