ATSAMD20G16A-AUT

Overview

The ATSAMD20G16A-AUT is a microcontroller from the Microchip SAMD20 series, featuring an ARM Cortex-M0+ core. It integrates 64 kB of Flash program memory and 8 kB of SRAM data RAM. 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 provides 38 general-purpose I/O pins and includes multiple communication interfaces such as I2C, SPI, and UART. The component is housed in a 48-TQFP package and is rated for 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 for program storage.
• Supports standard serial communication protocols including I2C, SPI, and UART.
• Features integrated analog-to-digital conversion capabilities.

Applications

• Low-power embedded control systems
• Industrial automation controllers
• Consumer electronic devices

Procurement Notes

Verify the specific suffix 'AUT' against official Microchip documentation to confirm it denotes the tape-and-reel packaging variant, distinct from the 'AU' tray version. Ensure the voltage range specification aligns with the intended power supply design, as datasheet variations exist between different SAMD20 sub-series regarding operating voltage limits. Confirm humidity sensitivity class requirements for assembly processes.

Selection Notes

Select this component when a balance of moderate memory capacity and low power consumption is required for 32-bit applications. The 48 MHz performance suits tasks requiring real-time processing without the complexity of higher-end cores. Verify that the 48-pin TQFP package fits the board layout constraints and that the available I/O count meets interface requirements.

Part Context

This part belongs to the SAMD20 family, designed for cost-sensitive and power-efficient applications. It shares architectural similarities with other SAMD20 variants but differs in memory size and pin count. The G16 designation typically indicates a specific memory configuration within the G-series lineup, which focuses on general-purpose microcontroller needs.

Replacement Considerations

ATSAMD20G16A-AU is a compatible alternative differing primarily in packaging format (tray versus tape-and-reel). Other SAMD20 series members may serve as functional substitutes if memory or I/O counts are adjusted accordingly.