ATSAMD20E15A-AU

Overview

The ATSAMD20E15A-AU is a 32-bit microcontroller based on the ARM Cortex-M0+ core, manufactured by Microchip Technology. It features 32KB of Flash program memory and 4KB of SRAM data memory. 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 includes a 12-bit ADC with 10 channels and a 10-bit DAC. The component provides 26 general-purpose I/O pins and integrates communication interfaces including I2C, SPI, and UART. It is housed in a 32-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 built-in analog-to-digital conversion with multiple input channels
• Supports standard serial communication protocols for peripheral connectivity
• Features non-volatile flash memory for persistent program storage

Applications

• Low-power embedded control systems
• Sensor interface modules
• Simple human-machine interface devices
• Battery-operated portable electronics

Procurement Notes

Verify the specific suffix 'AU' corresponds to the TQFP-32 package and industrial temperature grade when sourcing. Confirm that the required supply voltage aligns with the 1.62 V to 1.95 V operational range specified in the datasheet. Ensure compatibility with development tools supporting the SAM D20 family architecture before finalizing procurement decisions.

Selection Notes

Select this component when a low-power 32-bit MCU with sufficient processing speed for basic tasks is required. The limited RAM and Flash capacity suit applications with modest code size requirements. Consider the restricted voltage range compared to broader SAM D20 variants if system power rails differ. Verify pin count adequacy for the target design's I/O requirements.

Part Context

This part belongs to the SAM D20E series within the broader SAM D20 family of microcontrollers. It shares architectural similarities with other members like the ATSAMD20G15A but differs in memory configuration and package options. The E-series designation typically indicates specific pinout and peripheral availability distinct from G or J series counterparts within the same manufacturer lineup.

Replacement Considerations

Direct substitutes include ATSAMD20E15B-AU, which offers identical specifications but may vary in packaging or revision status. Cross-referencing the latest errata sheets is recommended to ensure functional equivalence regarding known silicon revisions.