ATSAMD20E16B-AUT

Overview

The ATSAMD20E16B-AUT is a Microchip Technology ARM microcontroller from the SAMD20E series, featuring an ARM Cortex-M0+ core. It integrates 64 kB of Flash program memory and 8 kB of SRAM data RAM within a 32-TQFP package. The device supports a maximum clock frequency of 48 MHz and operates on a supply voltage range of 1.62 V to 3.63 V. It includes 26 general-purpose I/O pins, a 12-bit ADC with 10 channels, and a 10-bit DAC. Communication interfaces include I2C, SPI, and USART. The component is rated for industrial temperature operation between -40°C and +85°C.

Feature Summary

• ARM Cortex-M0+ processor core optimized for low-power applications
• Integrated 64 kB non-volatile Flash memory and 8 kB static RAM
• On-chip analog-to-digital converter with 12-bit resolution and multiple input channels
• Supports standard serial communication protocols including I2C, SPI, and USART

Applications

• Industrial control systems requiring robust MCU performance
• Consumer electronics utilizing low-power ARM architectures
• Sensor interface modules leveraging integrated ADC capabilities
• General-purpose embedded applications in the SAMD20 family ecosystem

Procurement Notes

Verify the specific suffix 'AUT' against official Microchip documentation to confirm it denotes the TQFP-32 package variant, as some sources list 'AU' for this package. Ensure the order matches the required industrial temperature grade (-40°C to +85°C). Cross-reference the datasheet revision date to confirm current silicon errata status before finalizing procurement specifications.

Selection Notes

Select this component when a balance of moderate memory capacity (64 kB Flash) and low power consumption is required. The 48 MHz speed suits simple control loops but may be insufficient for complex real-time processing tasks compared to higher-end SAMD21 variants. Verify that the 26 available I/O pins meet the system's connectivity requirements without needing external multiplexers.

Part Context

This part belongs to the SAM D20E series, designed for cost-sensitive and power-constrained applications. It shares architectural similarities with other SAMD20 devices but offers specific memory and pin configurations tailored for compact designs. The E-series typically targets entry-level to mid-range embedded solutions within the broader Microchip ARM portfolio.

Replacement Considerations

ATSAMD20E16B-AU: Pin-compatible alternative with identical electrical characteristics; verify if the suffix difference implies only packaging or minor manufacturing variances per Microchip notices.