ATSAMD21E16C-UUTB4

Overview

The ATSAMD21E16C-UUTB4 is a low-power 32-bit ARM Cortex-M0+ microcontroller from Microchip Technology. It features 64 kB of Flash program memory and 8 kB of SRAM data RAM. The device operates at a maximum clock frequency of 48 MHz with an internal oscillator. It includes a 12-bit ADC with 10 channels and a 10-bit DAC. The unit supports multiple communication interfaces including I2C, SPI, USART, I2S, and LIN. It is housed in a WLCSP-35 package and is qualified to AEC-Q100 standards for automotive applications.

Feature Summary

• AEC-Q100 qualified for functional safety in automotive systems
• Integrated advanced analog peripherals including 12-bit ADC and 10-bit DAC
• Supports diverse serial communication protocols via dedicated hardware interfaces
• Low-power architecture based on the efficient ARM Cortex-M0+ core

Applications

• Automotive electronic control units requiring functional safety certification
• Industrial sensor nodes utilizing analog signal processing
• Battery-powered IoT devices leveraging low-power operation
• Consumer electronics employing multi-interface connectivity

Procurement Notes

Verify the specific suffix UUTB4 against the manufacturer's current product status documentation. Confirm that the AEC-Q100 qualification aligns with your system's functional safety requirements. Ensure the WLCSP-35 package compatibility matches your PCB layout specifications. Cross-reference the operating temperature range with your environmental constraints. Validate interface availability against your design needs.

Selection Notes

Select this component when automotive-grade reliability and functional safety compliance are mandatory. Choose this part if the application requires integrated high-resolution analog conversion capabilities alongside standard digital interfaces. Consider this MCU for space-constrained designs due to its wafer-level chip-scale packaging. Evaluate the 48 MHz performance limit against your processing throughput requirements before finalizing the selection.

Part Context

This model belongs to the SAMD21 series of microcontrollers designed for cost-effective and power-efficient applications. The series utilizes the ARM Cortex-M0+ core to balance processing capability with energy consumption. The E16 designation indicates specific memory configurations within the family. The C variant typically denotes commercial temperature ranges, while the B4 suffix relates to specific packaging or tape-and-reel configurations.

Replacement Considerations

ATSAMD21E16C-UUT

FAQ

Is the ATSAMD21E16C-UUTB4 suitable for automotive applications?

Yes, it is qualified to AEC-Q100 standards, supporting use in safety-related automotive systems.

What analog peripherals are included in this MCU?

It includes a 12-bit Analog-to-Digital Converter (ADC) with 10 channels and a 10-bit Digital-to-Analog Converter (DAC).