ATSAMD20E14A-AU

Overview

The ATSAMD20E14A-AU is a 32-bit microcontroller based on the ARM Cortex-M0+ core, belonging to the SAM D20 series. It integrates 16 kB of Flash program memory and 2 kB of SRAM data RAM within a 32-TQFP package. The device operates with a maximum clock frequency of 48 MHz and supports an input/output count of 26 I/O lines. It features a 12-bit ADC with 10 channels and includes communication interfaces such as I2C, SPI, and UART. The operating voltage range spans from 1.62 V to 1.95 V, with a specified operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates ARM Cortex-M0+ processor core for efficient 32-bit processing
• Includes 12-bit analog-to-digital converter with multiple input channels
• Supports standard serial communication protocols including I2C, SPI, and UART
• Features built-in power-on reset and watchdog timer peripherals

Applications

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

Procurement Notes

Verify the specific suffix 'AU' corresponds to the TQFP-32 package and industrial temperature grade when sourcing. Confirm RoHS compliance status through official Microchip documentation or authorized distributor datasheets prior to procurement. Ensure voltage supply requirements align with the 1.62 V to 1.95 V operational range specified in the technical data sheet.

Selection Notes

Select this component for applications requiring low power consumption and moderate processing speed. The 16 kB Flash and 2 kB RAM are suitable for simple control logic. Compare against ATSAMD20E15A-AU if larger memory capacity is needed. Verify pin compatibility with existing PCB layouts due to the 32-TQFP form factor constraints.

Part Context

This part belongs to the SAM D20 family of microcontrollers designed for cost-sensitive and power-efficient applications. It shares architectural similarities with other SAM D20 variants but differs in memory size and package options. The E-series designation typically indicates specific peripheral configurations and package types within the broader SAM D20 ecosystem.

Replacement Considerations

ATSAMD20E14A-AN offers identical electrical specifications but utilizes a different TQFP package variant. ATSAMD20E14B-MUT provides the same core functionality in a 32-VQFN package, requiring footprint adaptation.