ATSAMD20G16A-AN

Overview

The ATSAMD20G16A-AN is an ARM microcontroller from the Microchip SAMD20 series, featuring a 32-bit ARM Cortex-M0+ processor core. It integrates 64 kB of Flash program memory and 8 kB of SRAM data memory. The device operates with a maximum clock frequency of 48 MHz and supports a supply voltage range of 1.62 V to 1.95 V. It includes a 12-bit ADC with 14 channels and provides 38 general-purpose I/O pins. The component is housed in a QFN-48 package and is rated for an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates a high-performance 32-bit ARM Cortex-M0+ processor core for efficient code execution.
• Includes on-chip non-volatile memory with 64 kB of Flash and 8 kB of SRAM for application storage.
• Features multiple communication interfaces including SPI, UART, and I2C for peripheral connectivity.
• Supports analog signal processing with a 12-bit analog-to-digital converter containing 14 input channels.

Applications

• Industrial control systems requiring robust microcontroller performance
• Consumer electronics utilizing low-power ARM-based architectures
• Sensor interface modules leveraging integrated ADC capabilities

Procurement Notes

Verify the specific suffix 'AN' against official Microchip documentation to confirm the exact package type and tape/reel configuration. Ensure compatibility with the required voltage domain of 1.62 V to 1.95 V. Confirm that the QFN-48 footprint matches the design layout. Check for any specific humidity sensitivity levels or reflow soldering profiles mandated by the manufacturer.

Selection Notes

Select this component when a balance of processing power and peripheral integration is needed within a compact form factor. The 48 MHz speed and 64 kB memory suit moderate complexity applications. Consider the limited voltage range compared to 5V-tolerant variants like the ATSAMC20 series if system power rails differ. Evaluate the QFN-48 package for thermal and space constraints relative to TQFP alternatives.

Part Context

This part belongs to the Microchip SAMD20 family, designed for cost-sensitive and space-constrained embedded applications. The G-series designation typically indicates specific pinout and peripheral configurations distinct from E or J series members. It utilizes the same Cortex-M0+ core architecture found across the broader SAM D2x product line, ensuring software compatibility with other devices in the ecosystem.

FAQ

What is the maximum operating voltage for the ATSAMD20G16A-AN?

The maximum operating voltage is 1.95 V, with a minimum of 1.62 V.

How many analog input channels are available on this MCU?

The device features a 12-bit ADC with 14 available input channels.