ATSAMD20G15A-AU

Overview

The ATSAMD20G15A-AU is a Microchip Technology ARM microcontroller featuring an ARM Cortex-M0+ core. It integrates 32 kB of Flash program memory and 4 kB of SRAM data RAM. The device operates with a maximum clock frequency of 48 MHz and supports a supply voltage range from 1.62 V to 1.95 V. It provides 38 general-purpose I/O pins and includes 14 ADC channels with 12-bit resolution. Communication interfaces include I2C, SPI, and UART. The component is housed in a 48-TQFP package and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates an ARM Cortex-M0+ processor core for efficient code execution.
• Includes on-chip non-volatile Flash memory and static RAM for data storage.
• Supports multiple serial communication protocols including I2C, SPI, and UART.
• Features high-resolution analog-to-digital conversion capabilities.

Applications

• Low-power embedded control systems
• Industrial sensor interface modules
• Portable battery-operated devices

Procurement Notes

Verify the specific suffix 'AU' corresponds to the TQFP-48 package and industrial temperature grade during procurement. Confirm that the required supply voltage aligns with the 1.62 V to 1.95 V operational range specified for this variant. Ensure compatibility with standard surface-mount assembly processes for the 48-pin thin quad flat pack configuration.

Selection Notes

Select this component when a low-power 32-bit MCU with moderate peripheral counts is required. The 48 MHz speed and 32 kB memory suit applications needing efficient processing without excessive power consumption. Verify that the 1.95 V maximum voltage limit meets system power rail constraints before finalizing the design.

Part Context

This part belongs to the SAM D20 family of microcontrollers, which are designed for cost-sensitive and power-efficient applications. The G-series designation typically indicates specific pin counts and peripheral configurations within the broader SAM D20 portfolio, distinguishing it from other variants like the J or E series.

Replacement Considerations

Public confirmed substitute part numbers: ATSAMD20G15A-AUT (Reel packaging variant).