ATSAMD21E15C-UUT

Overview

The ATSAMD21E15C-UUT is a low-power microcontroller based on the ARM Cortex-M0+ core, operating at a maximum clock frequency of 48 MHz. It features 32 kB of Flash program memory and 4 kB of SRAM data RAM. The device provides 26 general-purpose I/O pins and includes an advanced analog subsystem with a 12-bit ADC offering 10 channels and a 10-bit DAC. Communication interfaces include I2C, I2S, LIN, SPI, and USART. It operates within a supply voltage range of 1.62 V to 3.63 V and supports an industrial temperature range from -40°C to +85°C. The component is housed in a 35-ball WLCSP package.

Feature Summary

• Integrates an ARM Cortex-M0+ processor for efficient code execution in resource-constrained applications.
• Includes advanced analog peripherals such as a 12-bit ADC and 10-bit DAC for signal processing.
• Supports multiple serial communication protocols including SPI, I2C, USART, and LIN for system connectivity.
• Designed for low-power operation suitable for battery-powered embedded systems.

Applications

• Battery-powered wearable devices requiring low power consumption
• Industrial control systems utilizing LIN bus communication
• Smart home sensors and actuators
• Portable medical instrumentation

Procurement Notes

Verify the specific suffix UUT indicates tape and reel packaging configuration when ordering. Confirm that the AEC-Q100 qualification status meets automotive reliability requirements if applicable. Ensure the WLCSP-35 package footprint matches the PCB layout design. Check for any lead-free or RoHS compliance documentation relevant to the manufacturing batch. Validate compatibility with existing development tools and debuggers for the SAMD21 family.

Selection Notes

Select this variant for designs requiring 32 kB of Flash and 4 kB of RAM within a compact WLCSP form factor. Choose over larger memory variants if board space is limited and application logic fits within these constraints. Consider the 26 available I/O pins against peripheral requirements. Verify that the 48 MHz speed is sufficient for real-time processing needs. Compare pin counts with other SAMD21 packages if more GPIOs are required.

Part Context

This part belongs to the Microchip SAMD21 series of 32-bit ARM Cortex-M0+ microcontrollers. The E15 designation typically denotes specific memory configurations within the E-series. The UUT suffix specifies the reel-based packaging format for automated assembly. This series is positioned for cost-sensitive, low-power embedded applications across consumer and industrial sectors.

Replacement Considerations

ATSAMD21E15B-UUT offers identical specifications but may differ in specific manufacturing lot qualifications or minor revision differences. ATSAMD21E15L-AFT provides similar functionality in a TQFP-32 package for through-hole or different SMT mounting preferences. ATSAMD21E16C-UUT serves as an upgrade path with increased memory (64 kB Flash, 8 kB RAM) in the same package.