ATSAMD21G15B-AF

Overview

The ATSAMD21G15B-AF 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 includes an advanced analog subsystem with fourteen 12-bit ADC channels and one 10-bit DAC. It supports multiple communication interfaces including I2C, SPI, USART, USB, and LINbus. The component operates within a supply voltage range of 1.62 V to 3.6 V and is available in a 48-TQFP package.

Feature Summary

• Integrates an ARM Cortex-M0+ processor for efficient code execution
• Includes advanced analog peripherals with multiple ADC channels and a DAC
• Supports diverse connectivity options such as USB and LINbus
• Features low-power operation capabilities suitable for battery applications

Applications

• Industrial control systems requiring robust communication protocols
• Consumer electronics utilizing USB connectivity
• Automotive applications supporting LINbus standards
• General-purpose embedded control tasks

Procurement Notes

Verify the specific suffix 'AF' indicates tape and reel packaging when sourcing components. Confirm the manufacturer part number matches Microchip Technology specifications exactly. Ensure compatibility with required operating temperature ranges and voltage levels during procurement planning. Cross-reference datasheet revisions to confirm peripheral availability and errata status before finalizing orders.

Selection Notes

Select this model when 32 KB of Flash and 4 KB of RAM are sufficient for application logic. Choose this variant over higher-capacity SAM D21G parts if cost or pin count optimization is required. Verify that the 48-TQFP package fits the PCB layout constraints. Ensure the design utilizes the internal oscillator or external clock source compatible with the 48 MHz maximum speed specification.

Part Context

This component belongs to the SAM D21G series of microcontrollers from Microchip Technology. The series is designed for low-power applications using the ARM Cortex-M0+ architecture. It shares common peripheral sets with other members of the SAM D21 family, facilitating migration between different memory and package configurations within the same ecosystem.

Replacement Considerations

Direct substitutes include ATSAMD21G15A-AF for previous generation variants with identical memory and package but potentially different qualification status. Higher capacity alternatives like ATSAMD21G16B-AF offer increased Flash while maintaining the same footprint.