ATSAMD20G15B-AU

Overview

The ATSAMD20G15B-AU is a 32-bit microcontroller based on the ARM Cortex-M0+ core, operating at a maximum frequency of 48 MHz. It features 32 KB of in-system programmable Flash memory and 4 KB of SRAM. The device provides 38 general-purpose I/O pins and supports multiple communication interfaces including I2C, SPI, and USART. It integrates 14-channel 12-bit analog-to-digital converters and one 10-bit digital-to-analog converter. Powered by a supply voltage ranging from 1.62 V to 3.63 V, it operates within an industrial temperature range of -40°C to +85°C and is housed in a 48-lead TQFP package.

Feature Summary

• Integrates an ARM Cortex-M0+ processor core for efficient low-power embedded control
• Includes versatile serial communication peripherals such as I2C, SPI, and USART
• Features high-resolution analog conversion capabilities with 14 ADC channels and a DAC

Applications

• Industrial control systems requiring robust peripheral connectivity
• Consumer electronics utilizing low-voltage power supplies
• General-purpose embedded applications needing reliable data acquisition

Procurement Notes

Verify the specific suffix 'AU' confirms the TQFP-48 package and industrial temperature grade during procurement. Confirm RoHS compliance status through official Microchip documentation or authorized distributor declarations. Ensure the ordering part number matches the exact pin count and memory configuration required for the design. Cross-reference datasheet revisions to verify any silicon errata relevant to the production batch.

Selection Notes

Select this component when a balance of moderate program storage and extensive I/O availability is required in a compact surface-mount package. It serves as a suitable upgrade path from 8-bit architectures due to its 32-bit processing capability. Consider alternative SAMD20 variants if higher flash capacity or different package footprints are necessary for the specific board layout constraints.

Part Context

This microcontroller belongs to the Microchip SAM D20 family, which utilizes the ARM Cortex-M0+ architecture. The family is designed for cost-sensitive and power-efficient applications. The 'G' designation typically indicates a specific pin count and peripheral set within the series, distinguishing it from other members like the J or E series variants.

Replacement Considerations

ATSAMD20G15B-MUT (VQFN package variant)

FAQ

What is the maximum operating frequency of the ATSAMD20G15B-AU?

The device supports a maximum system clock frequency of 48 MHz.

Does this MCU include USB connectivity?

No, the ATSAMD20G15B-AU does not include a USB controller; it relies on standard serial interfaces like USART, SPI, and I2C.